Australian Iphimediidae (Crustacea: Amphipoda)

Org. Divers. Evol. 6, Electr. Suppl. 9: 1 - 44 (2006) © Gesellschaft für Biologische Systematik URL: http://www.senckenberg.de/odes/06-09.htm URN: urn:nbn:de:0028-odes0609-3

Ch. Oliver Colemana, *, James K. Lowryb a Museum für Naturkunde, Invalidenstrasse 43, 10115 Berlin, Germany b Crustacean Section, Australian Museum, 6 College Street, Sydney, NSW 2010, Australia

* Corresponding author, e-mail: [email protected]

Received 28 April 2005 • Accepted 8 September 2005

Abstract

Australian species of the iphimediid amphipod genus Iphimedia are revised. Based on new material from inshore and continental shelf ha- bitats six new species are described: Iphimedia beesleyae; I. ﬁlmersankeyi; I. kateae; I. lisae; I. neuweileri, and I. oetkeri. Four established species are redescribed: Iphimedia ambigua Haswell, 1879; I. discreta Stebbing, 1910; I. edgari (Moore, 1981), and I. warraina (Thomas & Barnard, 1991). A key to Australian species of Iphimedia is provided. Keywords: Australia; Crustacea; Amphipoda; Iphimediidae; Taxonomy; New species

Introduction Iphimediids are among the most beautiful and specta- Myers (2003) concluded that Iphimedia is absent from cular amphipods. In the past they were considered to be the Pacific plate. There are no species reported along mainly polar (Barnard 1969b: 16; Barnard and Karaman the east coast of the United States, and only two from 1991: 25) with a minor temperate and tropical element. the west coast (Shoemaker 1931; Barnard 1969a). Only The antipolar iphimediids belong mainly to the paraphy- one species has been reported from Japan (Hirayama letic genus Iphimedia and its immediate sister taxa Ani- 1983) and only four species from the Red Sea through soiphimedia, Coboldus and Labriphimedia. Including the Indian Ocean to the Andaman Sea (Barnard 1932; the six new species in the present paper there are now 56 Ruffo 1959; Lowry and Myers 2003). In the southern described species of Iphimedia sensu lato. Many of the hemisphere four species are know from southern Africa Arctic and Antarctic species were described in the first (Griffiths 1974, 1975), two from Madagascar and Mau- third of the 20th century. On the other hand, 75% of the ritius (Ledoyer 1978, 1982), and four from southern temperate and tropical Iphimedia s.l. complex have been South America (De Broyer and Jaždžewski 1993). In described in the last 30 years, and this is changing our the Australasian region three species are known from concept of iphimediid biogeography. Papua New Guinea (Thomas and Barnard 1991; Lowry By now we know as many temperate and tropical and Myers 2003), three from New Caledonia (Lowry Iphimediidae species (49) as polar and subpolar ones and Myers 2003); ten from Australia (present paper), (47), and the temperate/tropical species appear to be and three from New Zealand (Hurley 1954). basal. Except for the European/Scandinavian coasts (5 Based on current records nearly 20% of the world’s species) (Sars 1893; Chevreux and Fage 1925; Myers antipolar iphimediid fauna is known from the Mediter- et al. 1987) and the Mediterranean Sea (11 species) ranean Sea and 40% from Australasia. This appears to (Ruffo and Schiecke 1982), most temperate and tro- be geographically disproportionate and will no doubt pical areas are probably under-sampled for iphimedi- change as the fauna, e.g. of the Indian Ocean, becomes ids. For example, there are no species reported in the better known. amphipod catalogues for Brazil (Wakabara and Serejo Haswell (1879) described the first Australasian spe- 1998) or the South China Sea (Lowry 2000). Lowry and cies of Iphimedia from Australia, Thomson (1880)

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 2 the second one from southern New Zealand. Stebbing 3. Pereonite 7 with mid-dorsal carina (Fig. 7a) (1910) added another Australian species based on col- ...... I. filmersankeyi n. sp. lections from the Thetis Expedition. Hurley (1954) de- – Pereonite 7 without mid-dorsal carina (Fig. 29a) scribed two species from New Zealand that have been ...... I. oetkeri n. sp. placed in the dubious genera Anisoiphimedia Karaman, 4. Pleonite 1 with a broadly truncated mid-dorsal cari- 1980 and Maoriphimedia Hurley, 1954. Moore (1981) na (Fig. 1b) ...... I. beesleyae n. sp. described a species from Tasmania in the genus Cyp- – Pleonite 1 without mid-dorsal carina ...... 5 siphimedia (synonymised with Iphimedia by Watling 5. Pereopod 5 basis posteroventral corner rounded; and Holman 1980). Thomas and Barnard (1991) added pereopod 6 posterodorsal corner with spine two species from Australia and Papua New Guinea...... I. ambigua Lowry and Myers (2003) described an additional four – Pereopod 5 basis posteroventral corner with spine; species from New Caledonia and Papua New Guinea. pereopod 6 posterodorsal corner without spine In the present paper we describe six new species from ...... I. discreta southern Australia, redescribe the four species pre- 6. Pleonite 1 without spines ...... 7 viously known from that continent, and present a key – Pleonite 1 with spines ...... 8 to the Australian species. 7. Epimeron 3 notched ...... I. edgari – Epimeron 3 double-notched ...... I. warraina Material and methods 8. Epimeron 3 posterior margin without mid-lateral spines ...... 9 Specimens were transferred from alcohol into glycerol – Epimeron 3 posterior margin with mid-lateral spine for study. Drawings were made with a camera lucida on (Fig. 24c) ...... I. neuweileri n. sp. a Leica Wild M5 dissecting microscope, or on a com- 9. Pleonites 1 and 2 with pointed spines forming nar- pound microscope if the animal was very small. Speci- row notch (Fig. 19b) ...... I. lisae n. sp. mens were then dissected; appendages and mouthparts – Pleonites 1 and 2 with rounded spines forming were transferred onto slides in glycerol and drawn broad notch (Fig. 13c) ...... I. kateae n. sp. using a compound microscope equipped with a camera lucida. Permanent slides were made after the study, Iphimedia ambigua Haswell, 1879 using Euparal or polyvinyl lactophenole. Iphimedia ambigua Haswell, 1879: 327, pl. 24, figs. Pencil drawings were scanned; files were transferred 2, 2x.—Haswell (1882: 241), Stebbing (1910: 585), to a Sony Vaio PCG-GRV616G computer and digitally Sheard (1937: 21), Lowry and Stoddart (2003: 135). inked using a WACOM Intuos 2 graphics board follo- Panoploea ambigua (Haswell).—Stebbing (1906: wing the method described in Coleman (2003). Cha- 213). racters were coded in a DELTA (Dallwitz et al. 1993, Type material. Syntypes (Australia, New South 1998) database to the Iphimedia sensu lato species of Wales): (AM P3468) 1 specimen, Port Jackson; (AM the world, which was used to generate the descripti- P3469) 1 specimen, Broughton Island. ve text, diagnoses and keys. In the descriptions, text in Description. Based on Haswell (1879: 327, pl. 24, boldface indicates diagnostic character states. figs. 2, 2x). Head. Eyes ovate. Antenna 1 without a Concerning the morphological terminology used, mediodistal bifid spine; accessory flagellum absent. “boss” refers to a rounded mid-dorsal cuticular extru- Pereon. Pereonite 1 enlarged, not produced over sion, “carina” to an acute mid-dorsal cuticular extrusi- head. Gnathopod 1 coxa small, ventrally subacute, on, and “spine” to a horizontal posterodistal cuticular ventral margin smooth. Gnathopod 2 small, ventrally extrusion. acute, ventral margin smooth. Pereopod 3 ventral mar- Australian iphimediid material is deposited in the gin smooth. Pereopod 4 coxa ventral margin smooth. Australian Museum, Sydney (AM) and the Natural Pereopod 5 coxa with posteroventral spine; basis History Museum, London (BMNH). posterodorsal corner with spine, posterior margin without spines, smooth, posteroventral corner roun- Taxonomic section ded; merus posteroventral lobe elongate, not reaching distal margin of carpus. Pereopod 6 coxa with postero- Key to Australian species of Iphimedia ventral spine; basis posterodorsal corner with spine, 1. Pleonite 2 dorsodistal margin produced (Fig. 1a) 2 posterior margin without spines, smooth, postero- – Pleonite 2 dorsodistal margin not produced (Fig. ventral corner with small spine; merus posteroventral 24c) ...... 6 lobe elongate, not reaching distal margin of carpus. Pe- 2. Pleonite 2 with a mid-dorsal boss (Fig. 7a) ...... 3 reopod 7 coxa with posteroventral spine; basis pos- – Pleonite 2 without a mid-dorsal boss (Fig. 1a) .... 4 terodorsal corner rounded, posterior margin without

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 3 spines, weakly serrate, posteroventral corner with spines, smooth, posteroventral corner rounded. Pereo- small spine; merus posteroventral lobe elongate. Per- pod 6 coxa with posteroventral spine; basis posterodor- eonite 7 without mid-dorsal carina, dorsodistal margin sal corner with short, straight spine, posterior margin slightly produced, dorsodistal margin with 2 large smooth, with 1 spine, posteroventral corner without pointed spines, with 1 posteroventral spine. spines, rounded. Pereopod 7 coxa with posteroventral Pleon. Pleonites 1 and 2 without mid-dorsal carina, spine; basis posterodorsal corner rounded, posterior dorsodistal margin slightly to strongly produced, with margin without spines, weakly serrate, posteroventral 2 large, pointed spines. Pleonite 3 without mid-dorsal corner with small spine. Pereonite 7 without mid-dorsal carina, dorsodistal margin slightly to strongly produ- carina, dorsodistal margin strongly produced into 2 lar- ced, dorsodistal margin with 2, straight spines. Epime- ge pointed spines, space between spines consisting of ron 1 posterior margin without mid-lateral spines, deep rounded excavation, with 1 posteroventral spine. posteroventral corner acutely produced. Epimeron 2 Pleon. Pleonite 1 with a broadly truncated mid- posterior margin without mid-lateral spines. Epimeron dorsal carina, dorsodistal margin strongly produ- 3 posterior margin with 1 well developed lateral, recur- ced, shield-like, with 2 large, pointed spines, much ved, smooth spine, posteroventral corner produced into larger and wider than those on pereonite 7 and pleonite a smooth spine. Telson entire. 2, space between spines deeply excavate and v-shaped. Remarks. Iphimedia ambigua is most similar to I. Pleonite 2 without mid-dorsal carina, dorsodistal mar- discreta Stebbing (see below), but differs as follows: gin slightly produced, dorsodistal margin with 2 coxae 6 and 7 with a produced spine on the posteroven- small pointed spines, space between spines roundly tral corner (vs subquadrate in I. discreta); pereopod 6 excavate. Pleonite 3 without mid-dorsal carina, dorso- basis posterodorsal corner with a spine (vs without spi- distal margin slightly to strongly produced, dorsodistal ne) and posteroventral spine situated above the corner margin with 2 straight spines. Epimeron 1 posterior (vs on the corner). margin without mid-lateral spines, posteroventral cor- Distribution. New South Wales: Broughton Island; ner rounded. Epimeron 2 posterior margin without mid- Port Jackson. lateral spines, posteroventral corner pointed. Epimeron 3 posterior margin with 1 well developed lateral, recur- Iphimedia beesleyae n. sp. ved, smooth spine, posteroventral corner produced into Figs. 1–6 a smooth spine. Telson emarginate, with an additional Etymology. Named for Pam Beesley (Australian Bi- small notch on both sides. ological Resources Survey, Canberra) in appreciation Remarks. Iphimedia beesleyae n. sp. is very similar of her efforts in support of Australian taxonomy for to I. damawan Lowry & Myers, 2003 from northern Pa- many years. pua New Guinea. Both species have a similar arrange- Type material. Holotype (AM P63613): female with ment of dorsodistal spines on pereonite 7 and pleonites 10 eggs, 6.4 mm; Australia, New South Wales, Sydney, 1 to 3, particularly the strongly developed dorsal spines East of Long Reef, 33°44’S 151°22’E, 42.5 m, Aus- on pereonite 1. The posterior margins of the basis of tralian Museum Shelf Benthic Survey, 27 April 1973. pereopod 7 are also similar. They differ in the shape of Paratypes (AM P24210): 2 specimens of unknown sex, the labrum (asymmetrical vs truncated), the length of 2.6–3.2 mm, from type locality. the posteromedial spine on peduncular article 1 of an- Description. Based on female holotype. Head. Eyes tenna 1, the shape of the gnathopod 2 propodus (elon- reniform; anterior margin without spine, anteroven- gate vs short), the posteroventral corner of pereonites 6 tral corner with acute spine. Antenna 1 peduncular ar- (normal vs produced) and 7 (produced vs normal), and ticle 1 with posteromedial spines, without posterovent- in the number of spines on the lower posterior margin ral spine (just 2 short protrusions); peduncular article 2 of the pereopod 6 basis (1 vs 2 spines). with posterodorsal spine, with a posteroventral spine. Distribution. New South Wales: Long Reef. Maxilla 1 palp 2-articulate, reduced, shorter than outer plate. Iphimedia discreta Stebbing, 1910 Pereon. Pereonite 1 enlarged, slightly produced over Colour plate 1a head. Gnathopod 1 coxa small, ventrally subacute, Iphimedia discreta Stebbing, 1910: 586, pl. 49.— ventral margin smooth. Gnathopod 2 coxa small, ven- Sheard (1937: 21), Lowry and Stoddart (2003: 135). trally acute, ventral margin smooth. Pereopod 3 coxa Not Iphimedia discreta Stebbing sensu Schellenberg posteroventrally acute, ventral margin smooth. Pereo- (1928: 643). pod 4 coxa ventral margin smooth. Pereopod 5 coxa Type material. Holotype (whereabouts unknown, with posteroventral spine; basis posterodorsal corner presumed lost): adult female (8 eggs), 3 mm; Australia, with small, straight spine, posterior margin without New South Wales, off Watta Molla, about 120 m.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 4

Description. Based on Stebbing (1910: 586, pl. 49). ral margin smooth. Pereopod 3 coxa ventrally trun- Head. Eyes round; anterior margin with rounded cated, ventral margin smooth. Pereopod 4 coxa ventral spine. Maxilla 1 palp 2-articulate, well developed, margin smooth. Pereopod 5 coxa posteroventral corner about as long or longer than outer plate. broadly rounded; basis posterodorsal corner rounded, Pereon. Pereonite 1 enlarged, not produced over posterior margin without spines, strongly serrate, pos- head. Gnathopod 1 coxa small, ventrally truncated, teroventral corner rounded; merus posteroventral lobe ventral margin smooth. Gnathopod 2 coxa small, ven- elongate, not reaching distal margin of carpus. Pereo- trally truncated, ventral margin smooth. Pereopod 3 pod 6 coxa posteroventral corner rounded; basis pos- coxa ventrally truncated, ventral margin smooth. Per- terodorsal corner rounded, posterior margin without eopod 4 coxa ventral margin smooth. Pereopod 5 coxa spines, strongly serrate, posteroventral corner without posteroventral corner broadly rounded; basis posterior spines, rounded; merus posteroventral lobe elongate, margin without spines, smooth, posteroventral corner not reaching distal margin of carpus. Pereopod 7 coxa with small spine; merus posteroventral lobe elongate. posteroventral corner rounded; basis posterodorsal cor- Pereopod 6 coxa posteroventral corner subquadrate; ner rounded, posterior margin without spines, strongly posterior margin without spines, smooth, posteroven- serrate, posteroventral corner rounded; merus poste- tral corner with small spine; merus posteroventral roventral lobe elongate, not reaching distal margin of lobe elongate, not reaching distal margin of carpus. carpus. Pereonite 7 without mid-dorsal carina, dorso- Pereopod 7 coxa posteroventral subquadrate; basis distal margin not produced and without spines, without posterior margin without spines, smooth; merus poste- posteroventral spine. roventral lobe elongate, not reaching distal margin of Pleon. Pleonites 1 to 3 without mid-dorsal boss or carpus. Pereonite 7 without mid-dorsal carina, dorso- carina, without dorsodistal spines, without mid-dor- distal margin slightly produced and with 2 large poin- sal carina, dorsodistal margin not shield-like produced, ted spines, without posteroventral spine. without spines. Epimeron 1 posterior margin without Pleon. Pleonites 1 and 2 without mid-dorsal carina, mid-lateral spines, posteroventral corner subquadrate. dorsodistal margin slightly, with 2 large, pointed spi- Epimeron 2 posterior margin without mid-lateral spines. Pleonite 3 without mid-dorsal carina, dorsodistal nes, posteroventral corner pointed. Epimeron 3 poste- margin slightly produced, dorsodistal margin with 2, rior margin without well developed lateral spines, pos- straight spines. Epimeron 1 posterior margin without teroventral corner notched. Telson entire, truncated. mid-lateral spines, posteroventral corner subqua- Remarks. Iphimedia edgari can be separated from drate. Epimeron 2 posterior margin without mid-late- its apparent sister species, I. warraina (Thomas & Bar- ral spines, just a rounded protrusion. Epimeron 3 pos- nard) (see below), by the single-notched posteroventral terior margin with 1 well developed lateral, recurved, corner of epimeron 3 (vs unique double-notched in I. smooth spine, posteroventral corner produced into a warraina) and by the truncated telson (vs emarginate). smooth spine. Telson emarginate. Distribution. Tinderbox, Tasmania. Remarks. See remarks on I. ambigua above. Iphimedia filmersankeyi n. sp. Distribution. New South Wales: off Watta Molla. Figs. 7–12, colour plate 1b Iphimedia edgari (Moore, 1981) Etymology. Named for Patrick Filmer-Sankey, for- Cypsiphimedia edgari Moore, 1981: 939, figs. 1–4. mer Deputy Director of the Australian Museum, in ap- Iphimedia edgari (Moore).—Lowry and Stoddart preciation of his unwavering support for science in the (2003: 135). Australian Museum. Type material. Holotype (BMNH 1980:178): male; Type material. Holotype (AM P42200): female, 10.3 Australia, Tasmania, Tinderbox, 43°04’S 147°21’E, 3– mm; Australia, Tasmania, D’Entrecasteaux Channel, 4 m depth. Paratype (BMNH 1980:179): 1 specimen. north side of Scott Point, 43°21.4’S 147°03.5’E, flat Description. Based on Moore (1981: 939, figs. 1–4). red alga, 18 m, R.T. Springthorpe & P.M. Berents, 20 Head. Eyes ovate. Antenna 1 peduncular article 1 April 1991, TAS-218. without posteromedial and posteroventral spines; Description. Based on female holotype. Head. Eyes peduncular article 2 without posterodorsal and poste- ovate; anterior margin with rounded spine, anterovent- roventral spines; peduncular article 3without a medio- ral corner with a recurved spine. Antenna 1 peduncular distal bifid spine; accessory flagellum absent. Maxilla article 1 with long posteromedial and with shorter pos- 1 palp 2-articulate, well developed, longer than outer teroventral spine; peduncular article 2 with posterodor- plate. sal and posteroventral spine. Maxilla 1 palp 2-articula- Pereon. Pereonite 1 enlarged, swollen. Gnathopod te, reduced, shorter than outer plate. 1 coxa small, ventrally acute, ventral margin smooth. Pereon. Pereonite 1 enlarged, slightly produced Gnathopod 2 coxa small, ventrally truncated, vent- over Head. Gnathopod 1 coxa small, ventrally rounded

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 5 to subacute, ventral margin smooth. Gnathopod 2 coxa Harding, Rocks near Migo Island, 35°04’S 117°39’E, slightly longer than coxa 1, ventrally rounded to suba- small branched algae with compound tunicate on un- cute, ventral margin smooth. Pereopod 3 coxa ventral- derside, 7 m, J.K. Lowry & R.T. Springthorpe, 15 Dec. ly truncated, ventral margin smooth. Pereopod 4 coxa 1983, WA 152. Paratypes: (AM P63601) 3 females ventral margin smooth. Pereopod 5 coxa with long pos- 4.8–5.5 mm; 2 males 3.1–4.2 mm, plus 3 specimens, teroventral spine; basis posterodorsal corner with spi- from type locality; (AM P63602) 3 specimens, Wes- ne, posterior margin weakly serrate ventrally, with 1 tern Australia, Two Peoples Bay, 2 km southeast of spine, posteroventral corner rounded. Pereopod 6 coxa South Point, 34°58’S 118°12’E, mixed algae—coralli- with posteroventral spine; basis posterodorsal corner ne, green, sea grass, 12 m, R.T. Springthorpe, 16 Dec. with spine, posterior margin weakly serrate, with 1 spi- 1983, WA 183; (AM P63603) 9 specimens 1.6–4 mm, ne, posteroventral corner without spines, rounded. Per- Western Australia, off southeast corner of Michaelmas eopod 7 coxa with posterodorsal and posteroventral Island, 35°03’S 118°00’E, green curly bryozoans, 24 spines; basis posterodorsal corner rounded, posterior m, R.T. Springthorpe, 17 Dec. 1983, WA 203. margin with 2 spines, weakly serrate, posteroventral Description. Based on female holotype. Head. Eyes corner rounded. Pereonite 7 with 1 acute mid-dorsal reniform; anterior margin without spine (but with carina and 2 dorsodistal large pointed spines, space rounded protrusion), anteroventral corner roun- between spines consisting of shallow rounded excava- ded. Antenna 1 peduncular article 1 without poste- tion, with 1 very long posteroventral spine, similar to romedial and posteroventral spines; peduncular article posteroventral corners of pereonites 5 and 6 which are 2 with very short posterodorsal and without postero- smaller. ventral spine. Maxilla 1 palp 2-articulate, well develo- Pleon. Pleonite 1 with a narrow apically acute mid- ped, about as long or longer than outer plate. dorsal carina, dorsodistal margin slightly to strongly Pereon. Pereonite 1 enlarged, slightly produced over produced, with 2 large, pointed spines, space between head. Gnathopods 1 and 2 coxa small, ventrally roun- spines notched. Pleonite 2 with a narrow apically acute ded, ventral margin smooth. Pereopod 3 coxa ventrally mid-dorsal carina, dorsodistal margin strongly produ- truncated to rounded, ventral margin weakly serra- ced, dorsodistal margin with 2 large, pointed spines, te posteroventrally. Pereopod 4 coxa ventral margin space between spines deeply excavate. Pleonite 3 smooth. Pereopod 5 coxa posteroventral corner broad- with a dorsodistal acute carina, dorsodistal margin ly rounded; basis posterodorsal corner rounded, pos- slightly to strongly produced, dorsodistal margin with terior margin without spines, smooth, posteroventral 2, recurved spines. Epimeron 1 posterior margin with corner rounded; merus posteroventral lobe not or very 1 very long mid-lateral spine, posteroventral corner slightly produced along carpus, not reaching half of acutely produced. Epimeron 2 posterior margin with 1 carpus length. Pereopod 6 coxa posteroventral corner very long mid-lateral spine. Epimeron 3 posterior mar- rounded; basis posterodorsal corner rounded, posterior gin with 1 lateral, straight, smooth spine, posterovent- margin without spines, smooth, apart from small small ral corner produced into a smooth spine. Telson weakly notches at the insertion of microtrichs, posteroventral emarginate, with a small notch on both sides. corner without spines, rounded; merus posteroventral Remarks. Iphimedia ﬁlmersankeyi resembles I. ste- lobe not or very slightly produced along carpus, not gosaura Grifﬁth, 1975 from South Africa. Both species reaching half of carpus length. Pereopod 7 coxa pos- have a similar arrangement of dorsal pleonal spines, teroventral corner rounded; basis posterodorsal corner and the second article of the maxillipedal palp is pro- rounded, posterior margin without spines, smooth, pos- duced to the tip of the third article. Both species have teroventral corner rounded; merus posteroventral lobe mid-lateral spines on pleonites 1 and 2 (though not not or very slightly produced along carpus, not reaching well developed in I. stegosaura), and acutely produced half of carpus length. Pereonite 7 without mid-dorsal posterovental corners on pereonites 5 to 7. However, I. carina, but with small boss, dorsodistal margin slightly stegosaura has a strongly produced anterior margin on produced, dorsodistal margin with 2 small rounded spi- pereonite 1, carinae on pereonites 1 to 6, and a double nes, space between spines consisting of very shallow carina on pleonite 3. excavation, without posteroventral spine, but rounded Distribution. Tasmania: D’Entrecasteaux Channel. lobe. Iphimedia kateae n. sp. Pleon. Pleonite 1 dorsodistal margin not produced Figs. 13–18 shield-like, with 1 mid-dorsal boss and 2 dorsodistal Etymology. Named for Kate Attwood in appreciati- rounded spines, space between spines shallowly ex- on of her help (to JKL) over many years. cavate. Pleonite 2 with a mid-dorsal boss, dorsodistal Type material. Holotype (AM P63600): female (ovi- margin not shield-like, produced, dorsodistal margin gerous), 7.3 mm; Western Australia, Torbay Bay, Port with 2 small, rounded spines, space between spines very

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 6 shallowly excavate. Pleonite 3 with a mid-dorsal boss, ner subquadrate; basis posterodorsal corner rounded, dorsodistal margin not produced, dorsodistal margin posterior margin with 1 spine, weakly serrate, poste- without spines. Epimera 1 and 2 posterior margin wi- roventral corner grossly excised. Pereonite 7 without thout mid-lateral spines, posteroventral corner acutely mid-dorsal carina, dorsodistal margin not produced, produced. Epimeron 3 posterior margin without well dorsodistal margin with 2 very short, small pointed developed lateral spine, posteroventral corner produ- spines, space between spines consisting of a shallow ced into a smooth spine. Telson emarginate. and wide excavation, without posteroventral spine. Remarks. Iphimedia kateae n. sp. is a distinctive Pleon. Pleonite 1 without mid-dorsal carina, dorso- species in which pereonite 7 and pleonites 1 and 2 have distal margin not shield-like produced, with 2 small, small mid-dorsal bosses and short, rounded spines with pointed spines, space between spines notch-like deep- a shallow excavation between them. It is one of the few ly excavate, excavation extended anteriorly. Pleonite species which do not have a mid-lateral posterior spine 2 without mid-dorsal carina, dorsodistal margin not on epimeron 3. In fact, there appear to be no species shield-like produced, dorsodistal margin with 2 small, that resemble I. kateae. Anisoiphimedia haurakiensis pointed spines, space between spines deeply narrowly is the only other species with mid-dorsal bosses on ple- notched. Pleonite 3 without mid-dorsal carina, dorso- onites 1 to 3, but it has pointed, narrow notched spines distal margin slightly produced, dorsodistal margin ex- on pereonites 7 and pleonites 1 and 2 and a well deve- cavate. Epimera 1 and 2 posterior margin without mid- loped lateral spine and a serrate posterior margin on lateral spines, posteroventral corner acutely produced. epimeron 3. Epimeron 3 posterior margin without well developed Distribution. Western Australia: Two Peoples Bay; lateral spine, posteroventral corner minutely double- Michaelmas Island; Migo Island, Port Harding, Torbay notched. Telson emarginate. Bay. Remarks. The beautiful I. lisae n. sp. appears to resemble the poorly described I. excisa (K.H. Barnard, Iphimedia lisae n. sp. 1932) from South African waters. Both species share Figs. 19–23 the unique grossly incised posteroventral corner on the Etymology. Named for Lisa Lorbeer. basis of pereopod 7. There is limited information about Type material. Holotype (AM P63604): female the dorsal processes on pleonites 1 to 3 in I. excisa, and (with setose oostegites), 4.3 mm; Australia, New South no indication of the unique notch-like arrangement of Wales, Twofold Bay, Quarantine Bay, 37°04’42”S I. lisae. The posteroventral corner of epimeron 3 is not- 149°53’E, airlift, Posidonia beds, S.J. Keable & A.L. ched in I. lisae vs minutely serrate in I. excisa, and the Reid, 25 June 1985, stn Q8. Paratypes (AM P63605): 4 telson is longer and less incised in I. excisa. specimens, 1.9–2.5 mm, from type locality. Distribution. New South Wales: Quarantine Bay, Description. Based on female holotype. Head. Eyes Twofold Bay. round to ovate; anterior margin with angular spine, anteroventral corner narrowly rounded. Antenna 1 pe- Iphimedia neuweileri n. sp. duncular article 1 with only two short apical spines; Figs. 24–28 peduncular article 2 with 1 short posterodorsal and Etymology. Named for Prof. Dr. G. Neuweiler to 1 posteroventral spine. Maxilla 1 palp 2-articulate, re- thank him for his efforts to improve the structure of the duced, shorter than outer plate. Museum für Naturkunde Berlin. Pereon. Pereonite 1 enlarged, slightly produced over Type material. Holotype (AM P63606): female, 5.7 head. Gnathopod 1 coxa small, ventrally truncated, mm; Western Australia, Torbay Bay, Port Harding, ventral margin smooth. Gnathopod 2 coxa small, vent- rocks near Migo Island, 35°04’S 117°39’E, small bran- rally rounded, ventral margin smooth. Pereopod 3 coxa ched algae with compound tunicate on underside, 7 m, ventrally truncated, ventral margin smooth. Pereopod 4 J.K. Lowry & R.T. Springthorpe, 15 Dec 1983, WA coxa ventral margin smooth. Pereopod 5 coxa postero- 152. Paratypes (AM P62986): 4 specimens, Western ventral corner broadly rounded; basis posterodorsal cor- Australia, Two Peoples Bay, 2 km southeast of South ner rounded, posterior margin without spines, smooth, Point, 34°58’S 118°12’E, mixed algae—coralline and posteroventral corner rounded to subquadrate; merus green algae and sea grass, 12 m, R.T. Springthorpe & J. posteroventral lobe not or very slightly produced along K. Lowry, 16 Dec. 1983, WA-183. carpus, not reaching half of carpus length. Pereopod Description. Based on female holotype. Head. Eyes 6 coxa posteroventral corner subquadrate to rounded; reniform; anterior margin without spine, anteroventral basis posterodorsal corner rounded, posterior margin corner narrowly rounded. Antenna 1 peduncular artic- with a rounded boss, minutely serrate, with shallow le 1 without posteromedial and without posteroven- notches at microtriches, posteroventral corner weakly tral spines; peduncular article 2 with a very short incised, rounded. Pereopod 7 coxa posteroventral cor- posterodorsal and a very short posteroventral spi-

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 7 ne. Maxilla 1 palp 2-articulate, reduced, shorter than Type material. Holotype: female (ovigerous), 5.4 outer plate. mm, AM P63607; Australia, New South Wales, Two- Pereon. Pereonite 1 enlarged, not produced over head. fold Bay, Munganno Point, 37°06’12”S 149°55’42”E, Gnathopods 1 and 2 coxa small, ventrally rounded, ven- subtidal wharf pile, erect bryozoan colony, 6 m, S.J. tral margin smooth. Pereopod 3 coxa ventrally roun- Keable, 10 Oct. 1984, stn M5. Paratypes (all Austra- ded, ventral margin smooth. Pereopod 4 coxa ventral lia, New South Wales): (AM P63608) 2 females 4.1–5 margin smooth. Pereopod 5 coxa posteroventral corner mm, 3 males 3.3–3.6 mm, 1 juv. 2.3 mm, from type broadly rounded; basis posterodorsal corner rounded, locality; (AM P22446) 1 ?male, 3 mm, east of Long posterior margin without spines, smooth, apart from Reef, 33°44’S 151°22’E, 38 m, Australian Museum notches at the insertion of microtrichs, posteroventral Party, 24 Aug. 1972; (AM P63609) 1 male 3.6 mm, corner rounded. Pereopod 6 coxa posteroventral corner 1 female 5.0 mm, Twofold Bay, Munganno Point, rounded; basis posterodorsal corner rounded, posterior 37°06’12”S 149°55’42”E, wharf pile, encrusting fau- margin without spines, weakly serrate, posteroventral na, 6 m, S.J. Keable & J.T. van der Velde, 10 Oct. corner without spines, rounded. Pereopod 7 coxa pos- 1984, stn M2; (AM P63611) 1 ?male 3.3 mm, Two- teroventral corner rounded; basis posterodorsal corner fold Bay, Munganno Point, 37°06’12”S 149°55’42”E, rounded, posterior margin without spines, weakly ser- tunicate, wharf piles, 12 m, S.J. Keable, A.C. Paul & rate, posteroventral corner rounded. Pereonite 7 wit- L.M. Walker, 26 March 1985, stn M2; (AM P63610) hout mid-dorsal boss or carina, without dorsodistal 1 female (ovigerous) 5 mm, Twofold Bay, Munganno spines, dorsodistal margin not produced, dorsodistal Point, 37°06’12”S 149°55’42”E, encrusting fauna on margin without spines, posteroventral spine subacu- wharf pile, ascidians, 4 m, J.T. van der Velde, 10 Oct. tely produced. 1984, stn M4; (AM P63612) 2 males 2.8 and 2.9 mm, Pleon. Pleonite 1 without mid-dorsal carina, dorso- 1 female with setose oostegites 3.9 mm, Twofold Bay, distal margin not shield-like produced, with 2 small, Munganno Point, 37°06’12”S 149°55’42”E, sponges, rounded spines, space between spines shallowly exca- bryozoan, wharf piles, 12 m, S.J. Keable & A.L. Reid, vate and spines close to each other. Pleonite 2 without 27 June 1985, stn M9. mid-dorsal carina, dorsodistal margin not shield-like Description. Based on female holotype. Head. Eyes produced, dorsodistal margin with 2 small, pointed spi- round. Antenna 1 peduncular article 1 with posterome- nes, space between spines deeply excavate and close dial and with posteroventral spines; peduncular article to each other. Pleonite 3 without mid-dorsal carina, 2 with posterodorsal and posteroventral spines. Maxilla dorsodistal margin not produced, dorsodistal margin 1 palp 2-articulate, reduced, shorter than outer plate. with 2 very short straight spines that are close to each Pereon. Pereonite 1 enlarged, strongly produced other, creating a notch. Epimera 1 and 2 posterior mar- over head. Gnathopod 1 coxa small, ventrally suba- gin without mid-lateral spines, posteroventral corner cute, ventral margin smooth. Gnathopod 2 coxa small, acutely produced. Epimeron 3 posterior margin with ventrally rounded and subacute, ventral margin smooth. 1 short lateral, weakly recurved, smooth spine, poste- Pereopod 3 coxa ventrally rounded, posterovent- roventral corner produced into a serrate spine. Telson ral corner serrate. Pereopod 4 coxa posteroventral entire and truncated. margin serrate. Pereopod 5 coxa with posterovent- Remarks. Iphimedia neuweileri n. sp. resembles I. ral spine; basis posterodorsal corner with spine, pos- spinosa Thomson, 1880 from New Zealand. In both terior margin with 1 very short spine, weakly serrate, species, pleonites 1 to 3 have weakly developed dor- posteroventral corner rounded. Pereopod 6 coxa with sodistal spines which form a notch on pleonite 3. How- posteroventral spine; basis posterodorsal corner with ever, in I. spinosa there is an additional pair of dorso- spine, posterior margin with 2 rather short spines, distal spines on pereonite 7. The basis on pereopods 6 weakly serrate, posteroventral corner without spines, and 7 is serrate along the posterior margin in both spe- rounded. Pereopod 7 coxa with posterodorsal and pos- cies, but the serrations are much stronger in I. spinosa. teroventral spines; basis posterodorsal corner rounded, The merus on pereopods 6 and 7 is much narrower in I. posterior margin with 2 spines (ventral spine only short spinosa. In addition, the eye is larger in I. spinosa. and blunt), weakly serrate, posteroventral corner roun- Distribution. Western Australia: Two Peoples Bay. ded. Pereonite 7 without mid-dorsal carina, dorsodistal margin strongly produced, dorsodistal margin with 2 Iphimedia oetkeri n. sp. large pointed and from lateral view wide spines, space Figs. 29–34 between spines consisting of a rather shallow excavati- Etymology. Named for Dr. Arend Oetker, in appre- on, with 1 posteroventral strong spine, also present on ciation of his support for the ﬁrst author’s projects to pereonites 5 and 6. promote public understanding of science.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 8

Pleon. Pleonite 1 with a narrow apically acute Maxilla 1 palp 2-articulate, well developed, about as mid-dorsal carina, dorsodistal margin strongly produ- long or longer than outer plate. ced, with 2 large and wide from lateral view, pointed Pereon. Pereonite 1 enlarged, slightly produ- spines, space between spines relatively shallow exca- ced over head. Gnathopod 1 coxa small, ventrally vate. Pleonite 2 with a narrow apically acute mid-dor- subacute, ventral margin smooth. Gnathopod 2 coxa sal carina, dorsodistal margin slightly to strongly pro- small, ventrally truncated, ventral margin smooth. Pe- duced, dorsodistal margin with 2 large, pointed spines reopod 3 coxa posteroventrally acute, ventral margin (broad from lateral view), space between spines rela- smooth. Pereopod 4 coxa ventral margin smooth. Pe- tively shallow excavate. Pleonite 3 with a dorsodistal reopod 5 coxa posteroventral corner broadly rounded; acute carina, dorsodistal margin slightly to strongly basis posterodorsal corner rounded, posterior margin produced, dorsodistal margin with 2, slightly recurved without spines, strongly serrate, posteroventral corner spines. Epimera 1 and 2 posterior margin with 1 mid- rounded; merus posteroventral lobe elongate, not rea- lateral spine, posteroventral corner acutely produced. ching distal margin of carpus. Pereopod 6 coxa pos- Epimeron 3 posterior margin with 1 well developed teroventral corner rounded; basis posterodorsal corner lateral, recurved, spine with one short additional tooth rounded, posterior margin without spines, strongly only, posteroventral corner produced into a smooth spi- serrate, posteroventral corner without spines, rounded; ne. Telson emarginate. merus posteroventral lobe elongate, not reaching distal Remarks. Iphimedia oetkeri n. sp. most closely re- margin of carpus. Pereopod 7 coxa posteroventral cor- sembles the European/Mediterranean I. eblanae Bate, ner subquadrate; basis posterodorsal corner rounded, 1857. Both species have paired spines on pereonite 7 posterior margin without spines, strongly serrate, pos- and pleonites 1 to 3, and well developed mid-dorsal teroventral corner rounded; merus posteroventral lobe carinae on pleonites 1 to 3. They also have mid-lateral elongate, not reaching distal margin of carpus. Pere- spines on epimera 1 and 2. Coxae 1 to 3 differ (broad onite 7 without mid-dorsal carina, dorsodistal margin distally versus tapering and acute distally in I. ebla- not produced, dorsodistal margin without spines, wit- nae), coxa 4 is much broader in I. oetkeri, and coxa 7 hout posteroventral spine. has two spines on the posterior margin (vs one or no Pleon. Pleonite 1 without mid-dorsal boss or ca- spines). The paired spines on pereonite 7 and pleonites rina, without dorsodistal spines, without mid-dorsal 1 and 2 are more robust in I. oetkeri. Pereonites 5 to carina, dorsodistal margin not shield-like produced, 7 are produced posteroventrally in I. oetkeri, whereas without spines. Pleonite 2 without mid-dorsal boss in I. eblanae only pereonite 7 has a posteroventrally or carina, without dorsodistal spines. Pleonite 3 wi- produced corner. thout mid-dorsal carina, dorsodistal margin not produ- Distribution. New South Wales: Long Reef; Mun- ced, dorsodistal margin without spines. Epimera 1 and ganno Point, Twofold Bay. 2 posterior margin without mid-lateral spines, posteroventral corner acutely produced. Epimeron 3 posterior Iphimedia warraina (Thomas & Barnard, 1991) margin without well developed lateral spine, postero- Cypsiphimedia warraina Thomas & Barnard, 1991: ventral corner double notched. Telson emarginate. 473, figs 1–3. Remarks. See remarks on Iphimedia edgari above. Iphimedia warraina (Thomas & Barnard).—Lowry Distribution. South Australia: Pearson Islands. and Stoddart (2003: 135). Type material. Holotype (South Australian Museum Acknowledgments C4226): juvenile, 2.82 mm; South Australia, Pearson We would like to thank the German Science Founda- Islands, 4–12 m, algae, 8. Jan. 1969. tion, Bonn, who made it possible for one of us (COC) Description. Based on Thomas and Barnard (1991: to study in Australia during 2002 (grant CO 165/6-1), 473, figs. 1–3). Head. Eyes round; anterior margin and the Department of Environment and Heritage, with sharp spine, anteroventral corner an angular spi- Canberra, for the same opportunity in 2005. We also ne. Antenna 1 peduncular article 1 with small pos- thank Dr. Steve Keable (Australian Museum, Sydney) teromedial spines, without posteroventral spine; pe- and Mr. Chris Rowley (Museum Victoria, Melbourne) duncular article 2 without posterodorsal spine, without for registration of the material. Special thanks to Mr. posteroventral spine; peduncular article 3 without a Roger T. Springthorpe (Australian Museum, Syndey) mediodistal bifid spine; accessory flagellum absent. for making the colour fotos.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 9

References Barnard, J.L., 1969a. Gammaridean Amphipoda of the Lowry, J.K., 2000. Taxonomic status of amphipod rocky intertidal of California: Monterey Bay to La Jolla. crustaceans in the South China Sea with a checklist of Bull. U.S. Natl. Mus. 258, 1–230. known species. Raffles Bull. Zool., Suppl. 8, 309–342. Barnard, J.L., 1969b. The families and genera of marine Lowry, J.K., Myers, A.A., 2003. New amphipod crustaceans gammaridean Amphipoda. Bull. U.S. Natl. Mus. 271, from the Indo-West Pacific (Amathillopsidae, Eusiridae, 1–535. Iphimediidae). Raffles Bull. Zool. 51, 219–256. Barnard, J.L., Karaman, G.S., 1991. The families and gene- Lowry, J.K., Stoddart, H.E., 2003. Crustacea: Malacostraca: ra of marine gammaridean Amphipoda (except marine Syncarida, Peracarida, in: Houston, W.W.K., Wells, A. gammaroids). Rec. Aust. Mus., Suppl. 13, 1–866. (Eds.), Zoological Catalogue of Australia, vol. 19.2a. Barnard, K.H., 1932. Amphipoda. Discovery Rep. 5, 1–326. CSIRO Publishing, Melbourne, 531 pp. Chevreux, E., Fage, L., 1925. Amphipodes. Faune de Fran- Moore, P.G., 1981. Marine Amphipoda (Crustacea) new to ce 9, 1–488. science from the Tasmanian phytal fauna. J. Nat. Hist. Coleman, C.O., 2003. “Digital inking”: how to make per- 15, 939–964. fect line drawings on computers. Org. Divers. Evol. 3, Myers, A.A., McGrath, D., Costello, M.J., 1987. The Irish 303–304 (see also http://www.senckenberg.de/odes/03- species of Iphimedia Rathke (Amphipoda: Acanthonoto- 14.htm). zomatidae). J. Mar. Biol. Assoc. U.K. 67, 307–321. Dallwitz, M.J., Paine,T.A., Zurcher, E.J., 1993 to present. Ruffo, S., 1959. Contributions to the knowledge of the Red User’s Guide to the DELTA System: a General System Sea No. 13. Contributo alla conoscenze degli anfipodi for Processing Taxonomic Descriptions, 4th edition. del Mar Rosso (1) (Materiali raccolti a Ghardaqa e nel http://biodiversity.uno.edu/delta/ Golfo di Aqaba). Bull. Sea Fisheries Res. Sta., Haifa 20, Dallwitz, M.J., Paine, T.A., Zurcher, E.J., 1998. Interactive 1–26. keys, in: Bridge, P., Jeffries, P., Morse, D.R., Scott, P.R. Ruffo, S., Schiecke, U., 1982. Family Acanthonotozomati- (Eds.), Information Technology, Plant Pathology and Bi- dae. Mém. Inst. Océanogr., Monaco 13, 1–18. odiversity. CAB International, Wallingford, pp. 201–212. Sars, G.O., 1893. An account of the Crustacea of Norway, De Broyer, C., Jaždžewski, K., 1993. Contribution to the with short descriptions and figures of all the species. Vol. marine biodiversity inventory. A checklist of the Amphi- I. Amphipoda. Parts 16–21. A. Cammermeyer, Cristiana, poda (Crustacea) of the Southern Ocean. Doc. Trav. Inst. pp. 341–472, pls. 121–168. Roy. Sci. Nat. Belg. 73, 1–154. Schellenberg, A., 1928. Report on the Amphipoda. Trans. Griffiths, C.L., 1974. The Amphipoda of southern Africa. Zool. Soc. London 22, 633–692. Part 4. The Gammaridea and Caprellidea of the Cape Sheard, K.A., 1937. Catalogue of Australian Gammaridea. Province east of Cape Agulhas. Ann. S. Afr. Mus. 65, Trans. Proc. Royal Soc. S. Aust. 61, 17–29. 251–336. Shoemaker, C.R., 1931. A new species of amphipod Griffiths, C.L., 1975. The Amphipoda of southern Africa. crustacean (Acanthonotozomatidae) from California, and Part 5. The Gammaridea and Caprellidea of the Cape notes on Eurystheus tenuicornis. Proc. U.S. Natl. Mus. Province west of Cape Agulhas. Ann. S. Afr. Mus. 67, 78(2861), 1–8. 91–181. Stebbing, T.R.R., 1906. Amphipoda. I. Gammaridea. Das Haswell, W.A., 1879. On some additional new genera and Tierreich. 21, 1–806. species of amphipodous crustaceans. Proc. Linn. Soc. Stebbing, T.R.R., 1910. Scientific results of the trawling N.S.W 4, 319–50, pls. 18–24. expedition of H.M.C.S. “Thetis”. Crustacea. Part V. Am- Haswell, W.A., 1882. Catalogue of the Australian Stalk- and phipoda. Aust. Mus. Mem. 4, 565–658, pls. 47–60. Sessile-eyed Crustacea. Australian Museum, Sydney. Thomas, J.D., Barnard, J.L., 1991. A review of the genus Hirayama, A., 1983. Taxonomic studies on the shallow Iphimedia (Crustacea: Amphipoda) with descriptions of water gammaridean Amphipoda of West Kyushu, Japan. three new species from Australia, Papua New Guinea I. Acanthonotozomatidae, Ampeliscidae, Ampithoidae, and Florida. Invertebr. Taxon. 5, 469–485. Amphilochidae, Anamixidae, Argissidae, Atylidae and Thomson, G.M., 1880. New species of Crustacea from New Colomastigidae. Publ. Seto Mar. Biol. Lab. 28, 75–150. Zealand. Ann. Mag. Nat. Hist. (Ser. 5) 6, 1–6. Hurley, D.E., 1954. Studies on the New Zealand amphipo- Wakabara, Y., Serejo, C.S., 1998. Malacostraca—Peracari- dan fauna. No. 9. The families Acanthonotozomatidae, da. Amphipoda. Gammaridea and Caprellidea, in: Young, Pardaliscidae and Liljeborgiidae. Trans. R. Soc. N.Z. 82, P.S. (Ed.), Catalogue of Crustacea of Brazil. Museu 763–802. Nacional, Rio de Janeiro, pp. 561–594. Ledoyer, M., 1978. Amphipodes gammariens (Crustacea) Watling, L., Holman, H., 1980. New Amphipoda from the des biotopes cavitaires organogènes récifaux de l’île Southern Ocean, with partial revision of the Acantho- Maurice (Océan Indien). Mauritius Inst. Bull. 8, notozomatidae and Paramphithoidae. Proc. Biol. Soc. 197–332. Wash. 93, 609–654. Ledoyer, M., 1982. Crustacés amphipodes gammariens. Fa- milles des Acanthonotozomatidae à Gammaridae. Faune de Madagascar 59(1),1–598.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 10

Colour plate 1: (a) Iphimedia discreta Stebbing; (b) Iphimedia filmersankeyi n. sp.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 11

e f

Fig. 1: Iphimedia beesleyae n. sp., female holotype, 6.4 mm. (a) left aspect of habitus; (b) dorsal habitus; (c) articles 1–4 of antenna 2; (d) articles 1–2 of antenna 1; (e) lower lip (hypopharynx); (f) upper lip (labrum). Scale bars: a, b = 1 mm; c–f = 200 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 12

c b

a d

Fig. 2: Iphimedia beesleyae n. sp., female holotype, 6.4 mm. (a) incisor of right mandible; (b) right mandible; (c) apex of left mandible; (d) mandibular palp; (e) outline of maxilla 2; (f) apices of maxilla 2. Scale bars: b, d, e = 200 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 13 c b

Fig. 3: Iphimedia beesleyae n. sp., female holotype, 6.4 mm. (a) maxilla 1; (b) 2nd apical spine-like seta of preformed appendage inside body of maxilla 1, (c) outer maxillipedal plate; (d) maxillipeds (setation of inner and outer plates and palps omitted); (e) palp of maxillipeds; (f) inner plate of maxillipeds. Scale bars: a = 300 µm; c, e, f = 100 µm; d = 200 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 14

c d

Fig. 4: Iphimedia beesleyae n. sp., female holotype, 6.4 mm. (a) gnathopod 1; (b) chela of gnathopod 1; (c) gnathopod 2, setation of propodus and dactylus omitted; (d) apex of gnathopod 2. Scale bars: a, c = 200 µm; b, d = 100 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 15

b a

Fig. 5: Iphimedia beesleyae n. sp., female holotype, 6.4 mm. (a) pereopod 3; (b) pereopod 4; (c) pereopod 5. Scale bars: a–c = 200 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 16

a c b

d e

Fig. 6: Iphimedia beesleyae n. sp., female holotype, 6.4 mm. (a) pereopod 6; (b) pereopod 7; (c) uropod 1; (d) uropod 2; (e) telson; (f) uropod 3. Scale bars: a–e = 200 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 17

Fig. 7: Iphimedia filmersankeyi n. sp., female holotype, 10.3 mm. (a) right aspect of habitus; (b) peduncular articles 1–2 of antenna 1; (c) peduncular articles 1–4 of antenna 2; (d) chela of gnathopod 1; (e) upper lip (labrum); (f) antenna 2? flagellum. Scale bars: a = 1 mm; b = 500 µm; c; e = 200 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 18

a b

g f

Fig. 8: Iphimedia filmersankeyi n. sp., female holotype, 10.3 mm. (a) dorsal habitus; (b) chela of gnathopod 2, dense cover of hair-like setae on medial face of propodus omitted; (c) right mandible (premolt mandible inside of mandibular body); (d) inner plate of maxillipeds; (e) maxilla 1 palp; (f) apex of mandibular palp; (g) left mandible. Scale bars: a = 1 mm; c, g = 500 µm; e = 200 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 19

b a

e d

Fig. 9: Iphimedia filmersankeyi n. sp., female holotype, 10.3 mm. (a) maxilla 1, detail shows 5th apical spine-like seta of preformed appendage inside body of maxilla 1; (b) maxillipeds, setation of palps and plates omitted; (c) maxilla 2; (d) outer plate of maxillipeds; (e) uropod 3, one ramus broken off; (f) uropod 2; (g) maxillipedal palp. Scale bars: a, c, d, e, g = 200 µm; b, f = 500 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 20

Fig. 10: Iphimedia filmersankeyi n. sp., female holotype, 10.3 mm. (a) gnathopod 1; (b) gnathopod 2, setation of propodus and dactylus omitted; (c) pereopod 3. Scale bars: a–c = 500 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 21

Fig. 11: Iphimedia filmersankeyi n. sp., female holotype, 10.3 mm. (a) pereopod 4; (b) pereopod 5; (c) pereopod 6. Scale bars: a–c = 500 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 22

b a

Fig. 12: Iphimedia filmersankeyi n. sp., female holotype, 10.3 mm. (a) pereopod 7; (b) telson; (c) uropod 1. Scale bars: a, c = 500 µm; b = 200 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 23

c b

e f

Fig. 13: Iphimedia kateae n. sp., female holotype, 7.3 mm. (a) left aspect of habitus; (b) articles 1–2 of peduncle of antenna 1; (c) dorsal aspect of pereonite 7 and pleonites 1–3; (d) peduncle of antenna 2; (e) lower lip (hypopharynx), slightly damaged; (f) upper lip (labrum). Scale bars: a = 1 mm; b, d, e = 200 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 24

Fig. 14: Iphimedia kateae n. sp., female holotype, 7.3 mm. (a) left mandible; (b) right mandibular palp; (c) incisor of right mandible; (d) outline of maxilla 2; (e) apex of maxilla 2; (f) maxilla 1, palp damaged; (g) palp of maxilla 1. Scale bars: a, d = 200 µm; f, g = 100 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 25

a b

Fig. 15: Iphimedia kateae n. sp., female holotype, 7.3 mm. (a) maxillipeds, setation omitted; (b) outer plate of maxillipeds; (c) inner plate of maxillipeds; (d) maxillipedal palp; (e) telson. Scale bars: a = 500 µm; b–d = 100 µm; e = 200 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 26

a b

Fig. 16: Iphimedia kateae n. sp., female holotype, 7.3 mm. (a) gnathopod 2, setation of propodus and dactylus omitted; (b) gnathopod 1; (c) chela of gnathopod 1; (d) propodus and dactylus of gnathopod 2. Scale bars: b = 200 µm; d = 100 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 27

a b

d e

Fig. 17: Iphimedia kateae n. sp., female holotype, 7.3 mm. (a) pereopod 3; (b) carpus to dactylus of pereopod 3; (c) pereopod 4; (d) uropod 1; (e) uropod 3. Scale bars: a, c, d = 500 µm; b, e = 200 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 28

a b

Fig. 18: Iphimedia kateae n. sp., female holotype, 7.3 mm. (a) pereopod 5; (b) pereopod 6; (c) pereopod 7; (d) uropod 2. Scale bars: a–d = 500 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 29

III c I

II b d

f g

Fig. 19: Iphimedia lisae n. sp., female holotype, 4.3 mm. (a) right aspect of habitus; (b) dorsal aspect of pereonites 6–7 and pleonites 1–3; (c) posteroventral angles of epimeral plates 1–3; (d) articles 1–2 of peduncle of antenna 1; (e) left mandible; (f) right mandible; (g) epistome and upper lip (labrum); (h) basal articles of antenna 2. Scale bars: a = 500 µm; d, h = 300 µm; e–g = 100 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 30

b a

c d e

Fig. 20: Iphimedia lisae n. sp., female holotype, 4.3 mm. (a) apex of outer maxillipedal plate; (b) lower lip (hypopharynx); (c) maxilla 1; (d) inner maxillipedal plate; (e) maxilla 2. Scale bars: b, c = 300 µm; d = 50 µm; e = 200 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 31

b c

Fig. 21: Iphimedia lisae n. sp., female holotype, 4.3 mm. (a) maxillipeds, setae on left palp omitted; (b) gnathopod 1; (c) propodus and dactylus of gnathopod 2. Scale bars: a = 100 µm; b = 200 µm (detail 50 µm); c = 300 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 32

Fig. 22: Iphimedia lisae n. sp., female holotype, 4.3 mm. (a) pereopod 3; (b) gnathopod 2, setation of propodus and dactylus omitted; (c) pereopod 4; (d) pereopod 5. Scale bars: a–d = 200 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 33

d e

Fig. 23: Iphimedia lisae n. sp., female holotype, 4.3 mm. (a) pereopod 6; (b) pereopod 7; (c) uropod 1, one ramus damaged; (d) uropod 2, one ramus damaged; (e) telson; (f) uropod 3, one ramus missing. Scale bars: a–d = 200 µm; e = 100 µm; f = 200 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 34

III

b I II c

d e

Fig. 24: Iphimedia neuweileri n. sp., female holotype, 5.7 mm. (a) left aspect of habitus; (b) articles 1–2 of antenna 1 peduncle; (c) posteroventral angle of epimera 1–3; (d) upper lip (labrum) and mandible, seen from anteriorly, (e) articles 1–4 of antenna 2 peduncle; (f) lower lip (hypopharynx); (g) posterodorsal margins of pereonite 7 and pleonites 1–3. Scale bars: a = 500 µm; d, e = 100 µm; b, f = 200 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 35

a b c

f g

Fig. 25: Iphimedia neuweileri n. sp., female holotype, 5.7 mm. (a) left mandible; (b) right mandible; (c) mandibular palp; (d) maxilla 2; (e) maxilla 1, palp twisted; (f) outer maxillipedal plate; (g) apices of maxilla 2. Scale bars: a–d, f = 100 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 36

a c

Fig. 26: Iphimedia neuweileri n. sp., female holotype, 5.7 mm. (a) chela of gnathopod 1; (b) maxillipeds, setation on inner and outer plates and apex of articles 2–3 of right palp omitted; (c) inner plate of maxillipeds; (d) gnathopod 1; (e) gnathopod 2; (f) chela of gnathopod 2. Scale bars: b, d, e = 200 µm; f = 100 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 37

Fig. 27: Iphimedia neuweileri n. sp., female holotype, 5.7 mm. (a) pereopod 3; (b) pereopod 4; (c) pereopod 5. Scale bars: a–c = 200 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 38

a b

f e

Fig. 28: Iphimedia neuweileri n. sp., female holotype, 5.7 mm. (a) pereopod 6; (b) pereopod 7; (c) uropod 1, slightly damaged ramus; (d) uropod 2; (e) uropod 3, one ramus missing; (f) telson. Scale bars: a–e = 200 µm; f = 100 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 39

d b

f e

Fig. 29: Iphimedia oetkeri n. sp., female holotype, 5.4 mm. (a) left aspect of habitus; (b) dorsal side; (c) peduncle articles 1–4 of antenna 2; peduncle articles 1–2 of antenna 1; (e) outer plate of maxillipeds; (f) half of lower lip (hypopharynx). Scale bars: a, b = 1 mm; c, f = 200 µm; e = 100 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 40

b a c

Fig. 30: Iphimedia oetkeri n. sp., female holotype, 5.4 mm. (a) left mandible; (b) maxilla 1; (c) maxilla 2; (d) right mandible; (e) maxillipedal palp. Scale bars: a, d = 200 µm; b, c, e, = 100 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 41

a b

Fig. 31: Iphimedia oetkeri n. sp., female holotype, 5.4 mm. (a) maxillipeds; (b) inner plate of maxilliped; (c) gnathopod 1; (d) propodus and dactylus of gnathopod 1.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 42

a b

e d

Fig. 32: Iphimedia oetkeri n. sp., female holotype, 5.4 mm. (a) gnathopod 2; (b) oostegite of gnathopod 2; (c) uropod 1; (d) pereopod 3; (e) uropod 3; (f) uropod 2. Scale bars: a, e = 200 µm; c, d = 500 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 43

Fig. 33: Iphimedia oetkeri n. sp., female holotype, 5.4 mm. (a) pereopod 4; (b) pereopod 5; (c) pereopod 6. Scale bars: a–c = 500 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006) Coleman & Lowry: Australian Iphimediidae (Crustacea: Amphipoda) 44

Fig. 34: Iphimedia oetkeri n. sp., female holotype, 5.4 mm. (a) pereopod 7; (b) telson. Scale bars: a = 500 µm; b = 100 µm.

Org. Divers. Evol. 6, Electr. Suppl. 9 (2006)