DOCSLIB.ORG

Download Full Article 6.5MB .Pdf File

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

1 30 November 1988 Memoirs of the Museum of Victoria 49(2): 195-307 (1988) ISSN 0814-1827 https://doi.org/10.24199/j.mmv.1988.49.12 A REVISION OF THE TERTIARY VOLUTIDAE (MOLLUSCA: GASTROPODA) OF SOUTH-EASTERN AUSTRALIA By Thomas A. Darragh Natural History Division, Museum of Victoria, 285 Russell Street, Melbourne, Victoria 3000, Australia Abstract Darragh, T.A. 1988. A revision of the Tertiary Volutidae (Mollusca: Gastropoda) of south- eastern Australia. Memoirs of the Museum of Victoria 49: 195-307. The Volutidae of Australia consists of 18 genera or subgenera of which five are known only as fossils and three only in the living fauna. (Twenty other genus group taxa have been syn- onymised.) The fossil genera can be grouped according to their affinity as: Cosmopolitan: Lyria (Late Oligocene-Recent), Athleta (Late Paleocene) and Scaphella (Aurinia) (Late Eocene). Endemic (the dominant element): Livonia (Late Oligocene-Recent), Ericusa (Late Oligo- cene-Recent), Nannamoria (Late Oligocene-Recent) and Amoria (Middle Miocene-Recent). Neozelandic: Alcithoe (Alcithoe) (Late Miocene, Late Pliocene), Alcithoe (Waihaoia) (Late Eocene-Middle Miocene). Indo-Pacific or Tethyan: Cymbiola (Late Oligocene-Recent), Mitreoia (Late Eocene) and Lep- loscapha (Middle Miocene, Recent). The living volutes of the Southern Australian region are almost entirely derived from the Southern Australian Tertiary volute fauna. Twenty-two new species group taxa are proposed: Lyria acuticostulata (E-M Mioc), L. mitraeformis crassicosta (E Pleist.), Mitreoia salapu- tium (L Eoc), Scaphella (Aurinia) johannae (L Eoc), Notovoluta variculifera (L Eoc), N. capitonica (L Eoc), N. verconis medicata (E Pleist.), N. kreuslerae occulta (E Pleist.), N. linigera (E Mioc), N. differta (E Mioc), Nannamoria amplexa (L Mioc), N. fasciculata (E. Mioc), N. trionyma (M Mioc), N. paraboloides (L Mioc-L Plioc), N. deplexa (E Mioc), N. cinctuta (L Plioc), Alcithoe (Waihaoia) pagadoides sororcula (L Olig.), A. (W.) neglectoides (L Olig.), Alcithoe (A.) orphanata (L Plioc), Livonia mortoni connudala (E Mioc), L. voluminosa (M Mioc), Notopeplum primarugatum (E Olig.) Contents Introduction 198 Previous work 199 Composition and origins of the Australian volute fauna 199 The fossil fauna 20 The living fauna 201 Classification 202 Stratigraphic record in South-eastern Australia 202 Terminology 203 Systematic Palaeontology 204 Volutidae 204 Athletinae 205 Volutinae 205 Lyria 207 Lyria semiacuticostata 208 Lyria acuticostulata 209 Lyria harpularia 210 Lyria acuticoslata 210 Lyria sp 211 Lyria gemmata 211 Lyria gracilicostata 211 195 196 T. A. DARRAGH Lyria mitraeformis crassicostata 212 Lyria mitraeformis mitraeformis • 212 Lyria nucleus 213 Lyria deliciosa 213 Lyreneta 213 Leptoscapha 213 Leptoscapha crassilabrum 213 Mitreola 214 Mitreola salaputium 215 Scaphellinae 215 Scaphella (A urinia) johannae 216 Subfamily uncertain Notovoluta 217 Group one 2 1 8 Notovoluta variculifera 218 Notovoluta capitonica 218 Notovoluta pseudolirata 218 Notovoluta cathedralis 219 Notovoluta ellipsoidea 220 Notovoluta tabulate 220 Notovoluta tuhulata subsp. nov 221 Notovoluta vercouis medicata 221 Notovoluta kreuslerae occulta 221 Notovoluta kreuslerae kreuslerae 222 Notovoluta vercouis vercouis 222 Notovoluta occidua 222 Notovoluta baconi 222 Notovoluta gardneri 222 Group Two 223 Notovoluta saginata 223 Notovoluta linigera 223 Notovoluta differta 223 Notovoluta lintea 224 Volutoconus 224 1 'olutoconus sp 224 Amoriinae 224 Amoria 225 A moria costellifera 226 Amoria undulata masoni 227 Amoria undulata undulata 228 Amoria exoptanda 229 Amoria sp 229 Nannamoria 229 Group One 230 Nannamoria stolida 230 Nannamoria strophodon strophodon 230 Nannamoria strophodon guntheri 231 Nannamoria umplexa 232 Nannamoria lundeliusae 232 Group Two 232 Nannamoria weldii 232 Nannamoria fasciculata 233 Nannamoria trionyma 233 Nannamoria paraboloides 234 Nannamoria amicula 234 1 TERTIARY VOLUTIDAE OF SOUTH-EASTERN AUSTRALIA 197 Nannamoria parabola 234 Group Three 234 Nannamoria deplexa 234 Nannamoria ralphi 235 Nannamoria limbata 235 Nannamoria cinctuta 236 Nannamoria capricornea 236 Nannamoria inopinata 236 Zidoninae 237 Alcithoe 238 Alcithoe (Waihaoia) 238 Alcithoe (Waihaoia) cribrosa 238 Alcithoe (Waihaoia) pagodoides pagodoides 239 Alcithoe (Waihaoia) pagodoides sororcula 239 Alcithoe (Waihaoia) neglectoides 240 Alcithoe (Waihaoia) pueblensis 241 Alcithoe (Waihaoia) sarissa 241 Alcithoe (Waihaoia) tateana 242 Alcithoe (Alcithoe) 242 Alcithoe (Alcithoe) macrocephala 243 Alcithoe (Alcithoe) orphanata 243 Ericusa 244 Ericusa sowerbyi pellita 244 Ericusa sowerbyi sowerbyi 246 Ericusa macroptera 247 Ericusa atkinsoni 247 Ericusa ancilloides 248 Ericusa hamiltonensis 248 Ericusa fulgetroides 249 Ericusa subtilis 249 Ericusa fulgetrum 249 Ericusa papillosa 250 Ericusa sericata 250 Livonia 250 Livonia spenceri 25 Livonia Stephens! 251 Livonia mortoni mortoni 252 Livonia mortoni connudata 253 Livonia voluminosa 253 Livonia sp. cf. L. nodiplicata 253 Livonia heptagonalis 254 Livonia hannafordi 254 Livonia gatliffi 255 Livonia mammilla 255 Livonia roadnightae 255 Livonia nodiplicata 255 Livonia joerinkensi 255 Notopeplum 256 Notopeplum protorhysum 256 Notopeplum primarugatum 257 Notopeplum mccoyi mccoyi 257 Notopeplum mccoyi translucidum 258 Notopeplum politum 258 Notopeplum annulalum 259 Cymbiola 259 198 T. \. DARKAf.H Cymbiola uncifera 261 Cymbiola macdonaldi 261 Cymbiola sp. cf. C. rossiniana 26) Cymbiola irvinae 262 Cymbiola sp cf. C. nivosa 262 Melo 262 Melo sp 262 Acknowledgements 262 References 262 Appendix 1 267 Appendix 2 273 Plates 273 Introduction they did not touch on the geological history of the family. Nevertheless, their work brings together the widely scattered literature, provides up-to-date Volutidae are carnivorous burrowing molluscs information, excellent figures of the living species. represented in all oceans of the world, but partic- and is of considerable assistance to workers on the ularly in those of the Southern Hemisphere. The family. seas surrounding Australia probably have the The fossils, on the other hand, received a mini- greatest diversity of genera, and about one third mum of attention. Apart from the original descrip- of the described species. Volutes are generally tions of species, there has been little further work, thought of as tropical animals, but, in fact, the and no attempt at systematic revision or proper syn- majority of species occurs in warm-temperate to thesis of the Tertiary and Recent faunas. The work temperate waters and some even in the cold waters reported here has involved a systematic stud, of the Antarctic and in abyssal depths (Weaver and the entire lossil fauna at both the generic and du Pont. 1970). Distribution with depth ranges specific lev els and an attempt has been made to elu- from intertidal to abyssal, but most are confined cidate the geological history of the group and to to depths less than 200 metres. The oldest species integrate fossil and living species. The palaeontol- of the family appear in the Late Cretaceous of ogist, if the geological record is good, sometimes North America, Europe, the Middle East and India has an excellent opportunity to study the variations and the family was well established throughout the in morphology of a group, since he is dealing with world by the Eocene (Wenz, 1943). organisms which range through time as well as in In general, this study has shown that the Aus- space; hence he may have a better appreciation of tralian Tertiary Volutidae, by virtue of the distri- range of variation and relationships within a genus bution of the Tertiary rocks, is similar to that than the worker on living species. presently found in temperate to warm-temperate There are several factors which hitherto tended waters of the southern half of the Australian Con- to prevent a critical appraisal of the volute famil) tinent and distributed between and 250 metres. as a whole. Firstly, excessive taxonomic splitting, They range in size from the 9 mm Leptoscapha particularly at the generic level, mainlv by workers crassiluhrum (Tate) to the 300 mm Livonia lian- on living species, lead to the creation of monotvpic nafordi (McCoy). genera, obscurred relationships and articialK Owing to their beauty and diversity, the Aus- differentiated between living and fossil species by tralian living volutes attracted the attention of inflation of the living fauna. Secondly, many of professional and particularly amateur eonehologists the Tertiary species, such as those of Notopepium, for many years. Much has been written on the Sotovoluta and Ternivoluta, belong to groups at group but there has been no serious attempt to ana- present found in moderately deep water, beyond lyse the fauna as a whole and relate it to the fossil the reach of normal collecting and it is only in record. The most comprehensive account of Aus- recent years with the development of trawling that tralian Recent volutes is that of Weaver and du species, such as Sunnumoria parabola, Termvoluta Pont (1970) who monographed the Volutidae of Studeri and Notopepium truns/ucidum have become the World. However, whilst their work will remain readily available for study and comparison with a classic study of the family, they could not, of Tertiary species. Thirdly, previous workers on necessity, treat the Australian members in detail, volutes have tended to be wholly involved either particularly with reference to status of genera, and with fossils, or with living species and have not TERTIARY VOI.U ITIME OF
Recommended publications
  • PRO NATURA NOVARA ONLUS GRUPPO MALACOLOGICO NOVARESE (Gianfranco Vischi)

    PRO NATURA NOVARA ONLUS GRUPPO MALACOLOGICO NOVARESE (Gianfranco Vischi)

    PRO NATURA NOVARA ONLUS GRUPPO MALACOLOGICO NOVARESE (Gianfranco Vischi) ([email protected]) n. 23 agosto 2015 La UMBILIA Armeniaca di R. Paolo Cesana Nella vasta famiglia delle Cypree, spiccano tra le ''medio-grandi'' forme australiane, quelle appartenenti alla ''tribù'' delle umbiliinae; consideriamo quindi il genere Umbilia armeniaca con le sue forme e/o sottospeci. La Umbilia armeniaca armeniaca (Verco, J. C. 1912) è la specie base, che vive sui fondali molli, in prevalenza tra le alghe, in acque profonde, sempre al di sotto dei 25 m. E' specie del sud e sud-vest dell'Australia, che va da Perth ad Adelaide. L'animale ha, sembra, una dieta mista, un po’ detritivora (detriti e residui) e un po’ spongivora. La sua conchiglia è simile a quella della sua cugina hesitata, ma più enflata e leggera, con la parte anteriore meno ''affusolata''. La fossula è più marcata, poco depressa; la dentatura è poco evidente e assente verso la estremità posteriore sul lato columellare, ben marcata invece nella parte anteriore; l'apertura è molto curvata verso l'estremità posteriore. La colorazione varia dal raro bianco al rosa salmone (tipico) con lievi maculature dorsali e sui lati, la base è sul beige-rosato o aranciato con un'rea più colorata dal lato columellare. La conchiglia ha una misura che varia tra i 65 e i 120 mm. circa. Passiamo ora alle poche sottospeci o ''forme'' che per le lievi differenze che si possono riscontrare fra loro, farò una breve carrellata di esse; - la Umbilia armeniaca westralica (Raibaudi Massilia, 1980) globosa, ha forma e caratteristica simile alle altre armeniache, la colorazione lucida varia dal bianco-giallastro al salmone rosato, al bruno, con sparse maculazioni varie sul dorso e i lati; come dice il suo nome, vive a sud ovest dell'Australia, la conchiglia è lunga circa 70 - 100 mm.
  • Auckland Shell Club Auction Lot List - 22 October 2016 Albany Hall

    Auckland Shell Club Auction Lot List - 22 October 2016 Albany Hall

    Auckland Shell Club Auction Lot List - 22 October 2016 Albany Hall. Setup from 9am. Viewing from 10am. Auction starts at 12am Lot Type Reserve 1 WW Helmet medium size ex Philippines (John Hood Alexander) 2 WW Helmet medium size ex Philippines (John Hood Alexander) 3 WW Helmet really large ex Philippines, JHA 4 WW Tridacna (small) embedded in coral ex Tonga 1963 5 WW Lambis truncata sebae ex Tonga 1979 6 WW Charonia tritonis - whopper 45cm. No operc. Tongatapu 1979 7 WW Cowries - tray of 70 lots 8 WW All sorts but lots of Solemyidae 9 WW Bivalves 25 priced lots 10 WW Mixed - 50 lots 11 WW Cowries tray of 119 lots - some duplication but includes some scarcer inc. draconis from the Galapagos, scurra from Somalia, chinensis from the Solomons 12 WW Univalves tray of 50 13 WW Univalves tray of 57 with nice Fasciolaridae 14 WW Murex - (8) Chicoreus palmarosae, Pternotus bednallii, P. Acanthopterus, Ceratostoma falliarum, Siratus superbus, Naquetia annandalei, Murex nutalli and Hamalocantha zamboi 15 WW Bivalves - tray of 50 16 WW Bivalves - tray of 50 17 Book The New Zealand Sea Shore by Morton and Miller - fair condition 18 Book Australian Shells by Wilson and Gillett excellent condition apart from some fading on slipcase 19 Book Shells of the Western Pacific in Colour by Kira (Vol.1) and Habe (Vol 2) - good condition 20 Book 3 on Pectens, Spondylus and Bivalves - 2 ex Conchology Section 21 WW Haliotis vafescous - California 22 WW Haliotis cracherodi & laevigata - California & Aus 23 WW Amustum bellotia & pleuronecles - Queensland 24 WW Haliotis
  • The Recent Molluscan Marine Fauna of the Islas Galápagos

    The Recent Molluscan Marine Fauna of the Islas Galápagos

    THE FESTIVUS ISSN 0738-9388 A publication of the San Diego Shell Club Volume XXIX December 4, 1997 Supplement The Recent Molluscan Marine Fauna of the Islas Galapagos Kirstie L. Kaiser Vol. XXIX: Supplement THE FESTIVUS Page i THE RECENT MOLLUSCAN MARINE FAUNA OF THE ISLAS GALApAGOS KIRSTIE L. KAISER Museum Associate, Los Angeles County Museum of Natural History, Los Angeles, California 90007, USA 4 December 1997 SiL jo Cover: Adapted from a painting by John Chancellor - H.M.S. Beagle in the Galapagos. “This reproduction is gifi from a Fine Art Limited Edition published by Alexander Gallery Publications Limited, Bristol, England.” Anon, QU Lf a - ‘S” / ^ ^ 1 Vol. XXIX Supplement THE FESTIVUS Page iii TABLE OF CONTENTS INTRODUCTION 1 MATERIALS AND METHODS 1 DISCUSSION 2 RESULTS 2 Table 1: Deep-Water Species 3 Table 2: Additions to the verified species list of Finet (1994b) 4 Table 3: Species listed as endemic by Finet (1994b) which are no longer restricted to the Galapagos .... 6 Table 4: Summary of annotated checklist of Galapagan mollusks 6 ACKNOWLEDGMENTS 6 LITERATURE CITED 7 APPENDIX 1: ANNOTATED CHECKLIST OF GALAPAGAN MOLLUSKS 17 APPENDIX 2: REJECTED SPECIES 47 INDEX TO TAXA 57 Vol. XXIX: Supplement THE FESTIVUS Page 1 THE RECENT MOLLUSCAN MARINE EAUNA OE THE ISLAS GALAPAGOS KIRSTIE L. KAISER' Museum Associate, Los Angeles County Museum of Natural History, Los Angeles, California 90007, USA Introduction marine mollusks (Appendix 2). The first list includes The marine mollusks of the Galapagos are of additional earlier citations, recent reported citings, interest to those who study eastern Pacific mollusks, taxonomic changes and confirmations of 31 species particularly because the Archipelago is far enough from previously listed as doubtful.
  • Phylum MOLLUSCA Chitons, Bivalves, Sea Snails, Sea Slugs, Octopus, Squid, Tusk Shell

    Phylum MOLLUSCA Chitons, Bivalves, Sea Snails, Sea Slugs, Octopus, Squid, Tusk Shell

    Phylum MOLLUSCA Chitons, bivalves, sea snails, sea slugs, octopus, squid, tusk shell Bruce Marshall, Steve O’Shea with additional input for squid from Neil Bagley, Peter McMillan, Reyn Naylor, Darren Stevens, Di Tracey Phylum Aplacophora In New Zealand, these are worm-like molluscs found in sandy mud. There is no shell. The tiny MOLLUSCA solenogasters have bristle-like spicules over Chitons, bivalves, sea snails, sea almost the whole body, a groove on the underside of the body, and no gills. The more worm-like slugs, octopus, squid, tusk shells caudofoveates have a groove and fewer spicules but have gills. There are 10 species, 8 undescribed. The mollusca is the second most speciose animal Bivalvia phylum in the sea after Arthropoda. The phylum Clams, mussels, oysters, scallops, etc. The shell is name is taken from the Latin (molluscus, soft), in two halves (valves) connected by a ligament and referring to the soft bodies of these creatures, but hinge and anterior and posterior adductor muscles. most species have some kind of protective shell Gills are well-developed and there is no radula. and hence are called shellfish. Some, like sea There are 680 species, 231 undescribed. slugs, have no shell at all. Most molluscs also have a strap-like ribbon of minute teeth — the Scaphopoda radula — inside the mouth, but this characteristic Tusk shells. The body and head are reduced but Molluscan feature is lacking in clams (bivalves) and there is a foot that is used for burrowing in soft some deep-sea finned octopuses. A significant part sediments. The shell is open at both ends, with of the body is muscular, like the adductor muscles the narrow tip just above the sediment surface for and foot of clams and scallops, the head-foot of respiration.
  • 2019 Conchologists of America Convention Oral Auction Preview

    2019 Conchologists of America Convention Oral Auction Preview

    2019 Conchologists of America Convention Oral Auction Preview 77. Cymbiola aulica (G. B. Sowerby I, 1825) 132.0 mm Donated by Emily and Susan Weiss 80. Cymbiola palawanica Douté & Bail, 2000 set of 3 specimens 82.8 - 89.5 mm Donated by Emily and Susan Weiss 78. Cymbiola aulica (G. B. Sowerby I, 1825) (Pangutaran Is. f.) 116.2 mm Donated by Emily and Susan Weiss 76. Cymbiola rutila (Broderip, 1826) set of 3 specimens 102.5 - 127.0 mm Donated by Emily and Susan Weiss 79. Cymbiola malayensis Douté & Bail, 2000 107.4 mm Donated by Emily and Susan Weiss 2019 Conchologists of America Convention Oral Auction Preview 84. 75. Volutoconus coniformis (Cox, 1871) Cymbiola cymbiola (Gmelin, 1791) 63.7 mm 74.0 mm Donated by Emily and Susan Weiss Donated by Emily and Susan Weiss 83. Volutoconus grossi (Iredale, 1927) 105.5 mm Donated by Emily and Susan Weiss 81. Lyria cloveriana Weaver, 1963 88.8 mm Donated by Emily and Susan Weiss 100. Melo amphora ([Lightfoot], 1786) 279 mm 82. Donated by Rick Negus Specimen Shells Paramoria guntheri (E. A. Smith, 1886) [f. adcocki Tate, 1889] set of 3 specimens 49.2 - 61.9 mm Donated by Emily and Susan Weiss 2019 Conchologists of America Convention Oral Auction Preview 59. Gaza olivacea Quinn, 1991 60. 41.6 mm w/op Maurea antipodensis (B. A. Marshall, 1995) Donated by Emily and Susan Weiss 24.5 mm w/op Donated by Emily and Susan Weiss 61. Maurea delli (McLean & Andrade, 1982) 33 mm w/op Donated by Emily and Susan Weiss 58.
  • (Approx) Mixed Micro Shells (22G Bags) Philippines € 10,00 £8,64 $11,69 Each 22G Bag Provides Hours of Fun; Some Interesting Foraminifera Also Included

    (Approx) Mixed Micro Shells (22G Bags) Philippines € 10,00 £8,64 $11,69 Each 22G Bag Provides Hours of Fun; Some Interesting Foraminifera Also Included

    Special Price £ US$ Family Genus, species Country Quality Size Remarks w/o Photo Date added Category characteristic (€) (approx) (approx) Mixed micro shells (22g bags) Philippines € 10,00 £8,64 $11,69 Each 22g bag provides hours of fun; some interesting Foraminifera also included. 17/06/21 Mixed micro shells Ischnochitonidae Callistochiton pulchrior Panama F+++ 89mm € 1,80 £1,55 $2,10 21/12/16 Polyplacophora Ischnochitonidae Chaetopleura lurida Panama F+++ 2022mm € 3,00 £2,59 $3,51 Hairy girdles, beautifully preserved. Web 24/12/16 Polyplacophora Ischnochitonidae Ischnochiton textilis South Africa F+++ 30mm+ € 4,00 £3,45 $4,68 30/04/21 Polyplacophora Ischnochitonidae Ischnochiton textilis South Africa F+++ 27.9mm € 2,80 £2,42 $3,27 30/04/21 Polyplacophora Ischnochitonidae Stenoplax limaciformis Panama F+++ 16mm+ € 6,50 £5,61 $7,60 Uncommon. 24/12/16 Polyplacophora Chitonidae Acanthopleura gemmata Philippines F+++ 25mm+ € 2,50 £2,16 $2,92 Hairy margins, beautifully preserved. 04/08/17 Polyplacophora Chitonidae Acanthopleura gemmata Australia F+++ 25mm+ € 2,60 £2,25 $3,04 02/06/18 Polyplacophora Chitonidae Acanthopleura granulata Panama F+++ 41mm+ € 4,00 £3,45 $4,68 West Indian 'fuzzy' chiton. Web 24/12/16 Polyplacophora Chitonidae Acanthopleura granulata Panama F+++ 32mm+ € 3,00 £2,59 $3,51 West Indian 'fuzzy' chiton. 24/12/16 Polyplacophora Chitonidae Chiton tuberculatus Panama F+++ 44mm+ € 5,00 £4,32 $5,85 Caribbean. 24/12/16 Polyplacophora Chitonidae Chiton tuberculatus Panama F++ 35mm € 2,50 £2,16 $2,92 Caribbean. 24/12/16 Polyplacophora Chitonidae Chiton tuberculatus Panama F+++ 29mm+ € 3,00 £2,59 $3,51 Caribbean.
  • Marine Boring Bivalve Mollusks from Isla Margarita, Venezuela

    Marine Boring Bivalve Mollusks from Isla Margarita, Venezuela

    ISSN 0738-9388 247 Volume: 49 THE FESTIVUS ISSUE 3 Marine boring bivalve mollusks from Isla Margarita, Venezuela Marcel Velásquez 1 1 Museum National d’Histoire Naturelle, Sorbonne Universites, 43 Rue Cuvier, F-75231 Paris, France; [email protected] Paul Valentich-Scott 2 2 Santa Barbara Museum of Natural History, Santa Barbara, California, 93105, USA; [email protected] Juan Carlos Capelo 3 3 Estación de Investigaciones Marinas de Margarita. Fundación La Salle de Ciencias Naturales. Apartado 144 Porlama,. Isla de Margarita, Venezuela. ABSTRACT Marine endolithic and wood-boring bivalve mollusks living in rocks, corals, wood, and shells were surveyed on the Caribbean coast of Venezuela at Isla Margarita between 2004 and 2008. These surveys were supplemented with boring mollusk data from malacological collections in Venezuelan museums. A total of 571 individuals, corresponding to 3 orders, 4 families, 15 genera, and 20 species were identified and analyzed. The species with the widest distribution were: Leiosolenus aristatus which was found in 14 of the 24 localities, followed by Leiosolenus bisulcatus and Choristodon robustus, found in eight and six localities, respectively. The remaining species had low densities in the region, being collected in only one to four of the localities sampled. The total number of species reported here represents 68% of the boring mollusks that have been documented in Venezuelan coastal waters. This study represents the first work focused exclusively on the examination of the cryptofaunal mollusks of Isla Margarita, Venezuela. KEY WORDS Shipworms, cryptofauna, Teredinidae, Pholadidae, Gastrochaenidae, Mytilidae, Petricolidae, Margarita Island, Isla Margarita Venezuela, boring bivalves, endolithic. INTRODUCTION The lithophagans (Mytilidae) are among the Bivalve mollusks from a range of families have more recognized boring mollusks.
  • June 28, 1859. Dr. Gray, FRS, VP, in the Chair. the Following

    June 28, 1859. Dr. Gray, FRS, VP, in the Chair. the Following

    213 June 28, 1859. Dr. Gray, F.R.S., V.P., in the Chair. The following papers were read :- I. NOTESON THE DUCK-BILL(ORNITHORHYNCHUS ANATIXU~). BY UR. GEORGEBENNETT, P.Z.S. (Mammalia, P1. LXXI.) On the morning of the 14th of September, 1848, I received through the kindness of Henry Brooks, Esq., of Penrith, six speci- mens of the Omithorhynchus-an unusually large number to be captured and sent at one time-consisting of four full-grown inales and two full-grown females. As usual, the latter were much smaller in size than the former. Some of these animals had been shot, and others captured in nets at night, at a place named Robe’s Creek, near the South Creek, Penrith, about thirty miles from Sydney. They were all in good and fresh condition, excepting one of the fe- males, in which some degree of decomposition had taken place, but not sufficient to prevent examination. On dissection, I found the uteri of the females (although it was the commencement of the breeding season) unimpregnated ; but in the four males the testes were all enlarged, resembling pigeons’ eggs in size, and of a pure white colour. At other seasons of the year I have observed them in these animals not larger than a small pea, and this being the commence- ment of the breeding season could alone account for their size ; so that they show in this respect a great resemblance to what is observed in most birds during the breeding season of the year. I am not aware of this peculiarity existing in any other Mammalia.
  • Auckland Shell Club Auction Lot List - 24 October 2015 Albany Hall

    Auckland Shell Club Auction Lot List - 24 October 2015 Albany Hall

    Auckland Shell Club Auction Lot List - 24 October 2015 Albany Hall. Setup from 9am. Viewing from 10am. Auction starts at noon. Lot Type Reserve 1 WW Many SMALL CYPRAEIDAE including the rare Rosaria caputdraconis from Easter Is. Mauritian scurra from Somalia, Cypraea eburnea white from from, New Caledonia, Cypraea chinensis from Solomon Is Lyncina sulcidentata from Hawaii and heaps more. 2 WW Many CONIDAE including rare Conus queenslandis (not perfect!) Conus teramachii, beautiful Conus trigonis, Conus ammiralis, all from Australia, Conus aulicus, Conus circumcisus, Conus gubernator, Conus generalis, Conus bullatus, Conus distans, and many more. 3 WW BIVALVES: Many specials including Large Pearl Oyster Pinctada margaritifera, Chlamys sowerbyi, Glycymeris gigantea, Macrocallista nimbosa, Pecten glaber, Amusiium pleuronectes, Pecten pullium, Zygochlamys delicatula, and heaps more. 4 WW VOLUTIDAE: Rare Teramachia johnsoni, Rare Cymbiolacca thatcheri, Livonia roadnightae, Zidona dufresnei, Lyria kurodai, Cymbiola rutila, Cymbium olia, Pulchra woolacottae, Cymbiola pulchra peristicta, Athleta studeri, Amoria undulata, Cymbiola nivosa. 5 WW MIXTURE Rare Campanile symbolium, Livonia roadnightae, Chlamys australis, Distorsio anus, Bulluta bullata, Penion maximus, Matra incompta, Conus imperialis, Ancilla glabrata, Strombus aurisdianae, Fusinus brasiliensis, Columbarium harrisae, Mauritia mauritana, and heaps and heaps more! 6 WW CYPRAEIDAE: 12 stunning shells including Trona stercoraria, Cypraea cervus, Makuritia eglantrine f. grisouridens, Cypraea
  • Darwin Landsnail Diversity Guides

    Darwin Landsnail Diversity Guides

    AN ILLUSTRATED GUIDE TO THE LAND SNAILS OF THE WESTERN GHATS OF INDIA Exotic snails and slugs can be a serious problem because they are often difficult to control and can be locally about 35 Ma. The land-snail fauna of the Western Ghats and Sri Lanka reflects this complex geological history. Gandhinagar Small-scale, casual collecting of empty snail shells is unlikely to have a harmful impact on the environment highly abundant. Many of this region's snail genera and most of the approximately 700 species are endemic to it, indicating that GUJARAT because it involves the removal of only tiny amounts of calcium carbonate from a few highly-localized places. Dinarzarde C. Raheem1, Fred Naggs1, N.A. Aravind2 & Richard C. Preece3 there has been substantial evolutionary diversification within this part of South Asia. Several snail genera such as The collection and preservation of live snails is essential for serious and systematic scientific research, but Next to being asked how to kill garden snails, the question we are most often asked is 'what use are they'? This Photography and image editing Harold Taylor1 Corilla and Acavus are thought to have a history that pre-dates the break-up of Gondwana, but are now largely or should only be carried out as part of such work. implies that the existence of organisms needs to be justified in terms of human values and human exploitation; it entirely restricted to the Western Ghats and/or Sri Lanka. A number of other groups (e.g. the genus Glessula, and is not a view we share.
  • Comparative Anatomy of Four Primitive Muricacean Gastropods: Implications for Trophonine Phylogeny

    Comparative Anatomy of Four Primitive Muricacean Gastropods: Implications for Trophonine Phylogeny

    ^/ -S/ COMPARATIVE ANATOMY OF FOUR PRIMITIVE MURICACEAN GASTROPODS: IMPLICATIONS FOR TROPHONINE PHYLOGENY M. G. HARASEWYCH DEPARTMENT OF INVERTEBRATE ZOOLOGY NATIONAL MUSEUM OF NATURAL HISTORY SMITHSONIAN INSTITUTION WASHINGTON, D.C. 20560, U.S.A. ABSTRACT The main features of the shell, head-foot, palliai complex, alimentary and reproductive systems of Trophon geversianus (Pallas), Boreotrophon aculeatus (Watson), Paziella pazi (Crosse), and Nucella lamellosa (Gmelin) are described, and phonetic and cladistic analyses based on subsets of these data presented. Similarities in shell morphology revealed by phenetic studies are interpreted as being due to convergence, and are indicative of similar habitats rather than of close phylogenetic relationships. Convergences are also noted in radular and stomach characters. Cladistic analyses of anatomical data support the following conclusions: 1 ) Thaididae are a primitive and ancient family of muricaceans forming a clade equal in taxonomic rank with Muncidae; 2) Within Muricidae, P. pazi more closely resembles the ancestral muricid phenotype than any trophonine; 3) Trophoninae comprise a comparatively recent monophyletic group with differences due to a subsequent austral adaptive radiation. The Muricidae are considered to be the most primitive and D'Attilio, 1976:13) a personal communication from E. H. family within Neogastropoda according to most (Thiele, Vokes "it appears likely that the most northern trophons are 1929; Wenz, 1941; Taylor and Sohl, 1962; Boss, 1982) but derived from the Paziella-Poiheha line, and that the several not all (Golikov and Starobogatov, 1975) recent classifica- austral forms that are unquestionably "trophonine" are prob- tions. Of the five subfamilies of Muricidae, the Trophoninae, ably derived from the Thaididae". proposed by Cossmann (1903) on the basis of shell and Thus, according to most published work, the Tropho- opercular characters to include a number of boreal and ninae are in a position to shed light on the systematics and austral species, are the most poorly understood.
  • Page 2______The Shell-O-Gram______Vol 56 No

    Page 2______The Shell-O-Gram______Vol 56 No

    July - August, 2015_____________________________________________________________Volume 56 No. 4 Programs There will be no Jacksonville Shell Club (JSC) meeting this July. We hope members will be out in the field collecting and enjoying themselves in the long summer days. Let's gather some "Marine Observations" and share them at the August meeting. On Thursday, August 27, the JSC will convene at the usual time (7:00 PM) and place (Southeast Branch, Jacksonville Public Library <http://jpl.coj.net/lib/branches/se.html>). The shell-of-the-month will be presented by Harry Lee. His choice will be made at the annual Conchologists of America (COA) convention in Weston, FL (July 12-18). It will be the most spectacular shell he observes at the scientific programs, oral and silent auctions, bourse, on the field trips, and in more impromptu encounters. Rick Edwards, who is also planning to attend, will do the photography. The main program will be given by Charlotte Thorpe, who is fresh back from a diving expedition to the Dominican Republic. Likely there'll be several living mollusks caught in natural poses by Char's well-honed underwater photographic skills. President’s Message Dear JSC Members, There is not much activity to mention for the club over the next couple of months, we are currently cruising in idle mode. Summer is upon us and for all of us currently living in Florida, the past few days have already brought on that incredibly warm and humid feeling. With that said, I am dreaming of shelling on the beach for some marine snails on a warm sunny day, shelling in the bush for some land snails after a good rain, or cruising down a nice cool river or creek with my snorkeling gear looking for some aquatics! I'd probably enjoy self propelling a jet back through the breeze, but it seems there have been no flying snails discovered as of yet, so I'll pass on that adventure for the time being.