Results andResults Discussion • • • • • • summarize the in findings the checklist: as voucher orpotential type specimens. To comprised ofonly taxa that wecollected in the field field. The taxonomic checklist in Table 1is without collecting orobserving specimens in the thus most ofits taxonomic assertions were made Durrell Conservation Monograph(Young, 2008)and Waldman’s were usedasthe works basisforthe is incomplete. Bland, Bass, and Stevens & Malacofauna ofMontserrat and the Lesser Antilles the fact that the current research onthe native

first time.first among others, were reported onthe island forthe candeana Pfeiffer, Pseudosuccinea Pallifera slugs. what appear to be 2-3species ofveronicellid oblongus their range,. has either eradicated them orsubstantially limited believe that recent volcanic activity onthe island not present at any ofoursurveysites, and we thought to have been present onthe island were glabrata identified as both rediscovered onisland and positively to Montserrat (see Robinsonet al.) were collected, extending its range from Dominica specimens of rawsonis Allopeas The presence ofthe invasive Two ofthe freshwater snail species, (2003)’sBass unidentified nerite specimen was Three Seven whole-body Acknowledgements Acknowledgements • • • • • Department ofthe Environment fortheir permission and guidance. and Molly Ziegler fortheir outstanding fieldworkand companionship; and the Montserrat Hetterich and Kathy Schmidt fortheir instruction in and systematics; Eichhorst Central Oklahoma, Dr. G. Thomas Watters at The OhioState University, and Thomas identifying this research: Dr. A.S.H. The authors wouldlike to acknowledge the following individuals fortheir contributions to

1

The most important findingofthis project is Department of Biology,Department at Simon’s College Bard Rock, 84 01230, Massachusetts Great Barrington, Road, Alford certain potentially novel and enigmatic species preparing to publish a checklist ofspecies and a phylogenetic analysis of invalidates certain points ofpreviously published scientific research least 21. island, increasing the islands’ gastropod known species richness from 15to at diversity ofneotropical gastropod ecosystems malacologists that hasa diverse and insufficiently studied gastropod population The Lesser Antillean islands in general have been critically overlooked by Montserrat isa small volcanically active island in the Caribbean Lesser Antilles We have still not fully analyzed all ofthe data that wecollected, and weare The field and work subsequent research that wehave done potentially We conducted the largest sampling effort ever to have been conducted onthe Amphibulima

,

ofConchologists of America fortheir assistance in identifying N.

Müller confirmed, was in addition to Say, and micra dorsalis Naiomi Bland were collected, the complete first

Amphibulimid Lea, and Neritilia A.

Pittman, Taylor d’Orbigny rawsonis

Binney Potamopyrgus topotypes , hindering ourscientific understanding ofthe evolution and

Z browni Breure

onitoides succinea species and his advice; Dr. David T. at Bass The University of columella ,

, to have been collected Pellicula of Lucidella

Pilsbry Polster for Megalobulimus Naturalis

sp. cf. sp. Récluz

Amphibulima sp. previouslysp. , Nathan

specimens

Say, appendiculata An unprecedented survey of An neotropicalunprecedented Montserratian survey snails Biomphalaria Center forhisassistance in spp. Introduction

arboreus

Fig. 1 Succinea , The terrestrial and freshwater gastropodsand ofThefreshwater Montserrat: terrestrial Sadowsky

USA; ,

, Clara

1837) (Beck, Succineidae 1833) Physidae 1908) (Schepman, Neritiliidae 1815) (Rafinesque, Lymnaeidae 1912) (Ihering, 1847) (Gray,Philomycidae ( (Tryon, 1867) Bulimululidae (Fischer, 1873) Amphibulimidae Family Zonitidae 1840) Veronicellidae (Gray, (Gill, 1871) Thiaridae 1877) Crosse, & (Fischer Subulinidae (Pilsbry, 1902) Strophocheilidae Férussac Woolner [email protected] Greig ! Nathaniel F. Shoobs ( ( , 1823) Fields, Ian Fitzinger Mörch Succinea

, Sam Table 1 - Taxonomic Checklist

Yarmis , 1864) Fig. 2 ; Bob , , 1862) Zonitoides 1925) (H.B. Baker,Leidyula 1868) (Fischer,Sarasinula 1817) Blainville, Veronicella (de (Olivier, 1804) Melanoides (Beck, 1837) Subulina 1935) (H.B. Baker,Allopeas 1878 (Miller,Megalobulimus (d’Orbigny, 1837) Omalonyx 1801) (Draparnaud, Succinea 1801) Physa 1879) Martens, (von Neritilia 1817) (Say,Pseudosuccinea Waldheim,de 1807) Pleurodonte (Morse, 1864) Pallifera 1840) (Swainson, Lucidella 1799) (Lamarck, Helicina 1814) (Leach, Bulimulus 1856) Pellicula 1805) (Lamarck, Amphibulima ( ! Draparnaud References References

(Fischer, Young, R.P. (ed.) (2008). A Biodiversity of theAssessment Centre Hills, Montserrat. Durrell Conservation 1.Durrell Monograph No. Wildlife Stevens, & M. Robinson, D.G. A. Bland, T. (1875).Note oncertain terrestrial mollusks, with Bass, T.D. (2003).Comparison offreshwater

(Lehmann, (Lehmann, (Fischer (Fischer

Conservation Trust, Jersey, Channel Islands. terrestrial and freshwater . rare species. History ofNew-York, 11, 197-200. , Waldmann Fig. 3 Species Sp. cf. Cryptic. Sp. Cf. Cryptic. Sp. Cf. Cryptic. Sp. Cf. Müller, 1774) tuberculata 1798) octona 1835) micra 1774) oblongus (Guppy,felina 1878) candeana 1839) cubensis 1841) succinea columella 1832) josephinae 1842) dorsalis Spp. guadeloupensis 1822) fasciata ( guadeloupensis (Pfeiffer, 1847) appendiculata Sp. browni 1875) rawsonis Bruguière 1 Hovestadt Zoologische and Thomas W. Coote • • • • • • (

( ( d’Orbigny arboreus floridana plebeia cubensis , G. (2001). , G. biodiversity ofthe Lesser Antillean Island ofMontserrat (British West Indies): an annotated checklist of ( (Lamarck, (Lamarck, ! Pilsbry Bruguière (Bland, (Bland, (Pfeiffer, ( Binney (Müller, with 70%ethanol foroptimal preservation. molecular genetic analysis that iscurrently in progress original taxonomic authority whenpossible tissue relaxation, and were subsequently fixed in glassvials of90%ethanol about twograms ofmentholated tobacco fornomore than an hourto promote approximate orexact location GPS and the specimen count were recorded the island Subsequent to the tissue collection, the 90%ethanol in each vial replaced was Small tissue punches were collected from most ofthe collected species for ourreturnUpon to the United States, weidentified the specimens usingthe The specimens were either drownedin water orplaced in a vial ofwater with Snails were collected upontheir discovery while hiking acrossthe island, and the The purposeofthissolely surveywas the to assess gastropod species richness of (Say, 1817) (Lea, 1841) (Lea, Récluz , 1789) , FieldsA. & A.S.H. ( (O.F. Férussac

Mededelingen , 1899) . ,

, . , . , [email protected] , , Archiv Fig Plate/ 4A-C 15 14 Fig. 1 Fig. 2 13 16 18 17A-B 10A-B Fig. 3 6 A-C 5 A-C, 9 A-C 12 11, 2A-B 3A-B 1A-B Fig. 4 macroinvertebrate ! , 83.

zoologischer Breure Fig. 4 Materials and Materials Methods . (2009). The land ofDominica (Lesser Antilles), with notes onsome enigmatic or

description ofa newspecies ofthe genus

Publikationen communities from small Caribbean islands. 1

[ Martna Fig. Shell5– Plate *Note* images not to scale images *Note*

Galunder-Verlag

Amphibulima , Nümbrecht

BioScience

www.postersession.comwww.postersession.com ] Band 6: i-viii+1-145. . Annals ofthe Lyceum of

, 53,1094-1100. www.postersession.com

Natural