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SIX NEW SPECIES of INDO-PACIFIC TEREBRIDAE (GASTROPODA) Twila Bratcher and Walter 0

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SIX NEW SPECIES of INDO-PACIFIC TEREBRIDAE (GASTROPODA) Twila Bratcher and Walter 0 Vol. 96(2) April 21, 1982 THE NAUTILUS 61 SIX NEW SPECIES OF INDO-PACIFIC TEREBRIDAE (GASTROPODA) Twila Bratcher and Walter 0. Cernohorsky 8121 Mulholland Terrace Auckland Institute and Museum Hollywood, CA 90046 New Zealand While doing research for a forthcoming book, terebrid species, some in museums, others from we have come across a number of undescribed private collectors. Some other species were 62 THE NAUTILUS April 21, 1982 Vol. 96(2) FIGS. 1-12. 1 & 10:Terebra mactanensis Bratcher & Cemohorsky, new species. Holotype, LACM no. 1968. 54-4 mm. 2 & 9: Terebra marrowae Bratcher & Cemohorsky, new species. Holotype, LACM no. 1969. 26.1 mm. 3 & 8: Duplicaria mozambiquen- sis Bratcher & Cemohorsky, new species. Holotype NM no. H7843. 22.3 mm. 4 & 12: Terebra caddeyi Bratcher & Cemohorsky, new species. Holotype LACM no. 1967. 52.7 mm. 5 & 11: Duplicaria baileyi Bratcher & Cemohorsky, new species. Holotype LACM no. 1970. 21^.9 mm. 6 & 7: Terebra burchi Bratcher & Cemohorsky, new species. Holotype MNHN. 17.9 mm. Vol. 96(2) April 21, 1982 THE NAUTILUS 63 represented only by a single specimen, and we Terebra caddeyi new species will wait for more material before describing (Figs. 4, 12) them. Six are being described here. Diagnosis: A long, slender, flat-sided terebrid shell, shiny tan, and with 3 or 4 spiral grooves Terebra burchi new species per whorl. (Figs. 6, 7) Description: Shell long, slender, with 25 whorls; color shiny tan; outline of whorls Diagnosis: A pure-white shell with small straight; protoconch missing; 3 spiral bands, brown dots scattered at random just below the each defined by a spiral groove, occur anterior suture and with a broadband of yellowish brown to suture; posterior band narrow, without on the base of the body whorl. nodes; center band of obsolete nodes; anterior Description: Shell about 18 mm in length, with band flatter and scarcely noded; no axial sculp­ 12 whorls of teleoconch; color pure-white with ture except axial striae; body whorl with deep small yellowish brown dots scattered at random groove posterior to periphery, followed by 3 immediately anterior to the suture and with the weak grooves; aperture small, quadrate; col­ same color on the base of the body whorl; outline umella curved, with moderately heavy parietal of whorls convex; protoconch with IV2 whorls callus; siphonal notch broad. remaining (paratype with intact protoconch of 3V2 amber conical whorls); sculpture of slightly Dimensions: Holotype 52.7 x 6.9 mm. Para- arcuate axial ribs from suture to suture, 13 on types from 44.4 x 5.4 to 53.4 x 6.6 mm. penultimate whorl; ribs well-developed, quite Type Locality: Korere Village, Rabaul, Papua, sharp, and narrower than interspaces; inter­ New Guinea, 3 m. in depth, on volcanic sand. spaces with 5 evenly-spaced grooves, the Type Material: Holotype LACM no. 1967. posterior being deep; interstical grooves not Paratypes Bratcher coll. (1); Caddey coll. (2). crossing ribs; no subsutural band; body whorl Distribution: Known only from type locality. with ribs fading at periphery; 8 grooves anterior Discussion: Terebra lima Deshayes, 1857, also to periphery, 6 posterior; aperture quadrate, has a flat-sided shell, but it lacks the sheen of with basal plication; columella recurved. this species and has almost cancellate sculpture with spiral cords and axial sculpture forming Dimensions: Holotype 17.9 x 4.3 mm. Para- small nodes at intersections. T. jenningsi Burch, types from 18.8 x 4.3 to 22.4 x 5.4 mm. 1965, has a concave outline, a cord at the periph­ Type locality: Northern Mozambique Channel ery of the body whorl, and more spiral grooves. (12 45'S; 45 18;E), at 15 -20 m, Benthedi Ex­ It also lacks sheen. This species is named for P. pedition sta. 32. T. Caddey, who collected the type lot. Type Material: Holotype MNHN Paris. Para- types LACM no. 1971 (1); MNHN (2); Bratcher Terebra mactanensis new species coll. (2): Cernohorsky coll. (2): Tursch coll. (2). (Figs. 1, 10) Distribution: From Mozambique and Papua Diagnosis: A long, extremely slender terebrid New Guinea; 2 to 20 m. Also Philippines. shell with dark spots between axial ribs anterior Discussion: There are several other Indo- to the suture. Pacific terebrids with dark areas anterior to the Description: Shell extremely slender, long; periphery of the body whorl and scattered spots color, shiny brown with black spots between ax­ below the suture. None of them has a pure-white ial ribs anterior to suture and a row of small background. Terebra amoena Deshayes, 1859, white dots at periphery of body whorl; outline of T conspersa Hinds, 1844, and T. pertusa (Born, whorls convex; protoconch of 3 white, conical 1778), all have larger shells with beige to tan whorls; sculpture of axial ribs from suture to backgrounds and have obvious subsutural suture, narrower than interspaces; ribs on body bands. whorl terminating at periphery in a white spot; This species is named in honor of a late friend aperture elongate; columella recurved, white; and colleague, R. D. Burch. siphonal fasciole extremely heavy, long. 64 THE NAUTILUS April 21, 1982 Vol. 96(2) Dimensions: Holotype 54.4 x 7.2 mm. Para- Dimensions: Holotype 26.1 x 5 mm. Para­ types from 47.8 x 6.1 to 62.1 x 8.1 mm. types from 21.4 x 4.8 to 32.1 (Apex missing) to Type Locality: Punta Egano, Mactan Island, 6.4 mm. Cebu, Philippine Islands at 200 m. Type Locality: Cleaverville, N.W. Australia; Type Material: Holotype LACM no. 1968. intertidal. Paratypes Bratcher collection. (1); Marrow col­ Type Material: Holotype LACM no. 1969. lection. (1). Paratypes Bratcher coll. (1); Caddey coll. (2); Distribution: This species is known only from Cernohorsky coll. (1); Cooper coll. (2). the type locality. Distribution: Northwest Australia, intertidal. Discussion: One of the paratypes is light Discussion: The most outstanding feature of orange-brown with dark brown spots between this species is the extremely large blackish the ribs anterior to the suture. The other is brown or purplish brown mamillate protoconch, white with a few brown areas anterior to the with a lighter brown or purplish area extending suture and with extremely faint brown spots at through two to four whorls of the teleoconch, the periphery of the body whorl. All have similar becoming progressively lighter. The sculpture of sculpture. There is no Indo-Pacific terebrid some of the paratypes is finer than that of the species with which T. mactanensis could be con­ holotype, with smaller nodes on the subsutural fused. The white paratype might be compared band. The color varies from white to yellowish with T. fortunae Deshayes, 1857, which has an white with a white subsutural band. All speci­ inflated shell with longer whorls, has more mens except one have a few tiny scattered spiral sculpture; and has no brown ornamenta­ brown dots, and that one was collected dead. tion. The type lot was collected by Max Marrow. Two of the paratypes have brownish pin-point dots at the periphery of the body whorl. There are several other Indo-Pacific terebrid Terebra marrowae new species species with cancellate sculpture, all of which (Figs. 2, 9) are easily separable from Terebra marrowae. T. Diagnosis: A cream-colored terebrid shell swobodai Bratcher, 1981, is more slender, has with a few small orange-brown dots and with an convex whorls and very heavy, rough sculpture exceptionally large, blackish mamillate proto- with small nodes forming where axial and spiral conch. cords cross. T elliscrossi Bratcher, 1979, and T Description: Shell medium-sized for the amanda Hinds, 1844, both have slender, non- genus; color, cream with a few small scattered mamillate protoconchs of more than IV2 whorls. orange brown dots, protoconch and first whorls Although T fenestrata Hinds, 1844, has a of teleoconch brown; outline of whorls concave mamillate protoconch, it is about V3 as large as in early whorls, flat in later ones, with convex that of T marrowae, and the sculpture of the subsutural band; protoconch of IV2 broad, ma­ teleoconch is extremely coarse and heavy. This millate blackish brown whorls; subsutural band species is named in honor of Lorna Marrow, who of large pearl-like nodes, occasionally spotted collected the holotype. between by orange-brown; suture shallow; sub­ sutural groove deep, narrow; subsutural band Duplicaria baileyi new species followed by a narrow, almost smooth, inconspic­ (PL 5, 11) uous band, becoming slightly nodulous on last 2 1965 Duplicaria australis (E. A. Smith), J. Cate & R. D. whorls; remainder of whorl finely concellate Burch, Veiiger 6(3):145; 1967 Cernohorsky, Mar. Shells with 2 spiral cords per whorl, forming shallow Pacific 1:208, pi. 52, fig. 392. [non Terebra australis E. A. pits between intersections; body whorl with Smith, 1873]. finely cancellate sculpture ending posterior to 1966 Duplicaria (Duplicaria) sp. Cernohorsky & Jennings, periphery, spiral cords only continuing to Veiiger 9(1):58, pi. 6, fig. 44. 1978 Terebra australis (E. A. Smith), Hinton, Guide Austra­ siphonal fasciole; aperture short, quadrate; col­ lian Shells, pi. 59, fig. 6. [non Terebra australis E. A. umella recurved. Smith, 18731. Vol. 96(2) April 21, 1982 THE NAUTILUS 65 Diagnosis: A beige Duplicaria shell with a few [non Lea 1833; non Gray, 1834] Hab.: Africa; holotype yellowish brown splotches scattered irregularly BM(NH). 1874.10.29.2; 22.0 mm. and with brown anterior to the periphery of the Diagnosis: A Duplicaria with extremely in­ body whorl. flated early whorls, a punctate subsutural Description: Shell medium sized, with 13 groove, and a narrow,
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