- Arion obesoductus
- Arion simrothi
- Arion vejdorskyi
- Santa Barbara Shelled Slug
- Kerry Slug
- Painted Snake-Coiled Forest Snail
- Cookeconcha contorta
- Endodonta apiculata
- Helicodiscus diadema
- Helicodiscus hexodon
- Hirasea acutissima
- Hirasea biconcava
- Hirasea chichijimana
- Hirasea diplomphalus
- Hirasea eutheca
- Hirasea goniobasis
- Hirasea hypolia
- Hirasea insignis
- Hirasea major
- Hirasea mirabilis
- Hirasea nesiotica
- Hirasea operculina
- Hirasea planulata
- Hirasea profundispira
- Hirasea sinuosa
- Hirasiella clara
- Pseudohelenoconcha spurca
- Thaumatodon hystricelloides
- Thaumatodon multilamellata
- Painted Snake-Coiled Forest Snail
- Cookeconcha contorta
- Endodonta apiculata
- Helicodiscus diadema
- Helicodiscus hexodon
- Acanthinula spinifera
- Achatina vignoniana
- Achatinella abbreviata
- Achatinella apexfulva
- Achatinella bellula
- Achatinella buddii
- Achatinella bulimoides
- Achatinella byronii
- Achatinella caesia
- Achatinella casta
- Achatinella cestus
- Achatinella concavospira
- Achatinella curta
- Achatinella decipiens
- Achatinella decora
- Achatinella dimorpha
- Achatinella elegans
- Achatinella fulgens
- Achatinella fuscobasis
- Achatinella juddii
- Achatinella juncea
- Achatinella lehuiensis
- Achatinella leucorrhaphe
- Achatinella lila
- Achatinella livida
- Achatinella lorata
- Achatinella mustelina
- Achatinella papyracea
- Achatinella phaeozona
- Achatinella pulcherrima
- Achatinella sowerbyana
- Achatinella spaldingi
- Achatinella stewartii
- Achatinella swiftii
- Achatinella taeniolata
- Achatinella thaanumi
- Achatinella turgida
- Achatinella valida
- Achatinella viridans
- Achatinella vulpina
- Acicula hausdorfi
- Acicula norrisi
- Acicula palaestinensis
- rocky mountain capshell
- Actinella actinophora
- Actinella anaglyptica
- Actinella armitageana
- Actinella carinofausta
- Actinella effugiens
- Actinella fausta
- Actinella giramica
- Actinella laciniosa
- Actinella obserata
- Actinella robusta
- Actinonaias pectorosa
- Adelopoma stolli
- Advena charon
- Aegista inexpectata
- Aegista intonsa
- Afrogyrus rodriguezensis
- Afrogyrus starmuehlneri
- Agathothoma finalis
- altamaha arcmussel
- elktoe
- coosa elktoe
- appalacian elktoe
- carolina elktoe
- brook floater
- ochlockonee arcmussel
- Allocharopa erskinensis
- Allocharopa okeana
- Allocharopa tarravillensis
- Allognathus graellsianus
- Alzoniella hartwigschuetti
- Amastra albolabris
- Amastra cornea
- Amastra crassilabrum
- Amastra cylindrica
- Amastra elongata
- Amastra forbesi
- Amastra micans
- Amastra pellucida
- Amastra porcus
- Amastra reticulata
- Amastra rubens
- Amastra spirizona
- Amastra subrostrata
- Amastra subsoror
- Amastra tenuispira
- Amastra umbilicata
- fat threeridge
- tight coin
- Amnicola cora
- Ampelita fulgurata
- Ampelita julii
- Ampelita soulaiana
- Amphicyclotulus guadeloupensis
- Amphicyclotulus liratus
- Amphicyclotulus perplexus
- Amphidromus cognatus
- shoal sprite
- Amphorella iridescens
- Amphorella melampoides
- Amphorella producta
- Amplirhagada astuta
- Amplirhagada elevata
- Amplirhagada herbertena
- Amplirhagada montalivetensis
- Amplirhagada questroana
- Anceya giraudi
- Anceya terebriformis
- australian freshwater limpet
- Ancylus ashangiensis
- Ancylus regularis
- Angrobia anodonta
- Angrobia dulvertonensis
- Angrobia dyeriana
- Angrobia grampianensis
- Angrobia petterdi
- Angrobia simsoniana
- Anodontoides radiatus
- granulated australia: tasmanian snail
- Antrobia breweri
- tumbling creek cavesnail
- blue spring aphaostracon
- wekiwa hydrobe
- dense hydrobe
- fenney spring hydrobe
- Archachatina bicarinata
- Archachatina knorri
- Arganiella exilis
- Arinia biplicata
- Arinia boreoborneensis
- Arinia dentifera
- Arinia oviformis
- Arinia simplex
- Arinia streptaxiformis
- ouachita rock pocketbook
- Armsia petasus
- franklin mountain woodland snail
- Aspatharia divaricata
- Aspatharia subreniformis
- badwater snail
- Assiminea palauensis
- pecos assiminea
- Atenia quadrani
- Atrichotoxon usambarense
- Auriculella ambusta
- Auriculella castanea
- Auriculella crassula
- Auriculella expansa
- Auriculella malleata
- Auriculella perpusilla
- Auriculella pulchra
- Auriculella tenella
- Auriculella uniplicata
- Austroassiminea letha
- Austrochloritis ascensa
- Austrochloritis pusilla
- Avenionia brevis
- Awalycaeus akiratadai
- Aylacostoma chloroticum
- Aylacostoma guaraniticum
- Aylacostoma stigmaticum
- Baccalena squamulosa
- Bathanalia howesi
- Bathanalia straeleni
- Batillaria mutata
- Baudinella baudinensis
- Beckianum sinistrum
- Beddomeia angulata
- Beddomeia averni
- Beddomeia bellii
- Beddomeia bowryensis
- Beddomeia briansmithi
- Beddomeia camensis
- Beddomeia capensis
- Beddomeia fallax
- Beddomeia forthensis
- Beddomeia franklandensis
- Beddomeia fromensis
- Beddomeia fultoni
- Beddomeia gibba
- Beddomeia hallae
- Beddomeia hullii
- Beddomeia inflata
- Beddomeia kershawi
- Beddomeia kessneri
- Beddomeia krybetes
- Beddomeia launcestonensis
- Beddomeia lodderae
- Beddomeia mesibovi
- Beddomeia minima
- Beddomeia petterdi
- Beddomeia phasianella
- Beddomeia protuberata
- Beddomeia ronaldi
- Beddomeia salmonis
- Beddomeia tasmanica
- Beddomeia topsiae
- Beddomeia trochiformis
- Beddomeia tumida
- Beddomeia turnerae
- Beddomeia waterhouseae
- Beddomeia wilmotensis
- Beddomeia wiseae
- Beddomeia zeehanensis
- Belgrandiella alticola
- Belgrandiella austriana
- Belgrandiella bojnicensis
- Belgrandiella fuchsi
- Belgrandiella ganslmayri
- Belgrandiella komenskyi
- Belgrandiella mimula
- Belgrandiella parreyssi
- Belgrandiella pelerei
- Belgrandiella pyrenaica
- Belgrandiella slovenica
- Belgrandiella styriaca
- Belgrandiella wawrai
- Bellamya constricta
- Bellamya contracta
- Bellamya costulata
- Bellamya crawshayi
- Bellamya ecclesi
- Bellamya jeffreysi
- Bellamya jucunda
- Bellamya leopoldvillensis
- Bellamya liberiana
- Bellamya monardi
- Bellamya mweruensis
- Bellamya pagodiformis
- Bellamya phthinotropis
- Bellamya robertsoni
- Bellamya rubicunda
- Bellamya trochearis
- Biomphalaria angulosa
- Biomphalaria barthi
- Biomphalaria salinarum
- Biomphalaria tchadiensis
- Bischoffena bischoffensis
- Boettgeria crispa
- Boettgeria obesiuscula
- Bofilliella subarcuata
- Boninena callistoderma
- Boninena hiraseana
- Boninena ogasawarae
- Boninosuccinea ogasawarae
- Boninosuccinea punctulispira
- Bothriembryon bradshaweri
- Bothriembryon brazieri
- Bothriembryon glauerti
- Bothriembryon irvineanus
- Bothriembryon perobesus
- Bothriembryon praecelcus
- Bothriembryon spenceri
- Bothriembryon whitleyi
- Boucardicus albocinctus
- Boucardicus antiquus
- Boucardicus carylae
- Boucardicus culminans
- Boucardicus curvifolius
- Boucardicus delicatus
- Boucardicus divei
- Boucardicus esetrae
- Boucardicus fidimananai
- Boucardicus fortistriatus
- Boucardicus magnilobatus
- Boucardicus mahermanae
- Boucardicus rakotoarisoni
- Boucardicus randalanai
- Boucardicus simplex
- Boucardicus tridentatus
- Boucardicus victorhernandezi
- Brazieria entomostoma
- Brazieria erasa
- Brazieria lutaria
- Brazieria minuscula
- Brazieria obesa
- Brazieria velata
- Bridouxia giraudi
- Bridouxia leucoraphe
- Bridouxia ponsonbyi
- Bridouxia praeclara
- Bridouxia rotundata
- Bridouxia smithiana
- Buffetia retinaculum
- Bulimulus achatellinus
- Bulimulus adelphus
- Bulimulus adserseni
- Bulimulus akamatus
- Bulimulus albermalensis
- Bulimulus alethorhytidus
- Bulimulus amastroides
- Bulimulus blombergi
- Bulimulus calvus
- Bulimulus cavagnaroi
- Bulimulus chemitzioides
- Bulimulus cinerarius
- Bulimulus cucullinus
- Bulimulus curtus
- Bulimulus darwini
- Bulimulus deridderi
- Bulimulus duncanus
- Bulimulus elaeodes
- Bulimulus eos
- Bulimulus eschariferus
- Bulimulus galapaganus
- Bulimulus habeli
- Bulimulus hemaerodes
- Bulimulus hirsutus
- Bulimulus hoodensis
- Bulimulus indefatigabilis
- Bulimulus jacobi
- Bulimulus jervisensis
- Bulimulus lycodus
- Bulimulus nesioticus
- Bulimulus nucula
- Bulimulus nux
- Bulimulus ochsneri
- Bulimulus olla
- Bulimulus pallidus
- Bulimulus perrus
- Bulimulus perspectivus
- Bulimulus planospira
- Bulimulus rabidensis
- Bulimulus reibischi
- Bulimulus rugatinus
- Bulimulus rugiferus
- Bulimulus rugulosus
- Bulimulus saeronius
- Bulimulus sculpturatus
- Bulimulus simrothi
- Bulimulus sp. nov. 'josevillani'
- Bulimulus sp. nov. 'krameri'
- Bulimulus sp. nov. 'nilsodhneri'
- Bulimulus sp. nov. 'tuideroyi'
- Bulimulus sp. nov. 'vanmoli'
- Bulimulus tanneri
- Bulimulus tortuganus
- Bulimulus trogonius
- Bulimulus unifasciatus
- Bulimulus ustulatus
- Bulimulus wolfi
- Bulinus barthi
- Bulinus browni
- Bulinus camerunensis
- Bulinus canescens
- Bulinus cernicus
- Bulinus crystallinus
- Bulinus hexaploidus
- Bulinus hightoni
- Bulinus mutandensis
- Bulinus nyassanus
- Bulinus octaploidus
- Bulinus succinoides
- Bulinus transversalis
- Burnupia crassistriata
- Burnupia stuhlmanni
- Bythinella badensis
- Bythinella bavarica
- Bythinella bicarinata
- Bythinella carinulata
- Bythinella compressa
- Bythinella cylindrica
- Bythinella dunkeri
- Bythinella padiraci
- Bythinella pupoides
- Bythinella reyniesii
- Bythinella vesontiana
- Bythinella viridis
- Bythiospeum acicula
- Bythiospeum alpinum
- Bythiospeum articense
- Bythiospeum bourguignati
- Bythiospeum bressanum
- Bythiospeum cisterciensorum
- Bythiospeum diaphanum
- Bythiospeum elseri
- Bythiospeum garnieri
- Bythiospeum geyeri
- Bythiospeum noricum
- Bythiospeum pfeifferi
- Bythiospeum quenstedti
- Bythiospeum reisalpense
- Bythiospeum sandbergeri
- Bythiospeum tschapecki
- Caldwellia imperfecta
- Caldwellia philyrina
- slender campeloma
- Campolaemus perexilis
- Camptoceras hirasei
- Camptoceras rezvoji
- Canariella leprosa
- Canariella pthonera
- Candidula setubalensis
- Cantareus mazzullii
- Carelia anceophila
- Carelia bicolor
- Carelia cochlea
- Carelia cumingiana
- Carelia dolei
- Carelia evelynae
- Carelia glossema
- Carelia hyattiana
- Carelia kalalauensis
- Carelia knudseni
- Carelia lirata
- Carelia lymani
- Carelia mirabilis
- Carelia necra
- Carelia olivacea
- Carelia paradoxa
- Carelia periscelis
- Carelia pilsbryi
- Carelia sinclairi
- Carelia tenebrosa
- Carelia turricula
- Carinotrachia carsoniana
- Caseolus abjectus
- Caseolus commixtus
- Caseolus consors
- Caseolus hartungi
- Caseolus leptostictus
- Caseolus subcalliferus
- Castalia martensi
- Cecilioides connollyi
- Cecilioides eulima
- Cecilioides nyctelia
- Ceratophallus kisumiensis
- Ceratophallus socotrensis
- Cerion nanus
- Chamalychaeus expanstoma
- Chamalychaeus miyazakii
- Chamalychaeus takahashii
- Chamalychaeus yanoshigehumii
- Charpentieria diodon
- Chilonopsis blofeldi
- Chilonopsis exulatus
- Chilonopsis helena
- Chilonopsis melanoides
- Chilonopsis nonpareil
- Chilonopsis subplicatus
- Chilonopsis subtruncatus
- Chilonopsis turtoni
- Chilostoma cingulellum
- Chilostoma rossmaessleri
- Chilostoma ziegleri
- Burnup's hunter slug
- snake skin hunter slug.
- Purcell's hunter slug
- Chondrina oligodonta
- Chondropoma callipeplum
- Christianoconcha quintalia
- Chytra kirki
- Ciliellopsis oglasae
- crystal siltsnail
- ichetucknee siltsnail
- enterprise siltsnail
- pygmy siltsnail
- ponderous siltsnail
- seminole siltsnail
- wekiwa siltsnail
- Cipangochalax placeonovitas
- Cipangocharax okamurai
- cahaba pebblesnail
- umbilicate pebblesnail
- Clavator moreleti
- Cleopatra africana
- Cleopatra cridlandi
- Cleopatra exarata
- Cleopatra ferruginea
- Cleopatra grandidieri
- Cleopatra guillemei
- coahuilix de hubbs snail
- Cochlicopa nitens
- phantom cave snail
- Cochliopina compacta
- Miller's snail
- Cochlostoma canestrinii
- Codringtonia acacrianica
- rock snail
- Coelatura alluaudi
- Coelatura cridlandi
- Coelatura horei
- Coelatura ratidota
- Coenocharopa yessabahensis
- harney basin duskysnail
- Collisella edmitchelli
- Colparion madgei
- Conacmella vagans
- Conus africanus
- Conus cepasi
- Conus kohni
- Conus nobrei
- Conus zebroides
- Cooperconcha centralis
- Cralopa colliveri
- Cralopa kaputarensis
- Craspedoma costata
- Craspedoma hespericum
- Craspedoma lyonnetianum
- Craspedoma trochoideum
- Crassispira sacerdotalis
- Craterodiscus pricei
- Cristigibba wesselensis
- Cristilabrum bubulum
- Cristilabrum buryillum
- Cristilabrum grossum
- Cristilabrum isolatum
- Cristilabrum monodon
- Cristilabrum primum
- Cristilabrum rectum
- Cristilabrum simplex
- Cristilabrum solitudum
- Cristilabrum spectaculum
- Cryptazeca elongata
- Cryptazeca kobelti
- Cryptazeca monodonta
- Cryptazeca spelaea
- Cryptazeca subcylindrica
- Cryptazeca vasconica
- mission creek oregonian
- Cryptosaccus asturiensis
- Ctenoglypta newtoni
- Ctenophila caldwelli
- Ctenophila salaziensis
- Ctenophila setiliris
- Ctenophila vorticella
- spectacle case pearly mussel
- Cupedora broughami
- Cupedora evandaleana
- Cupedora luteofusca
- Cupedora marcidum
- Cupedora nottensis
- Cupedora sutilosa
- Cupedora tomsetti
- Cyathopoma nishinoi
- Cyathopoma randalana
- Cyclonaias tuberculata
- Cyclophorus horridulum
- Cyclosurus mariei
- Cylichnidia ovuliformis
- Cylindrovertilla kingi
- Cylindrus obtusus
- Cymatium parthenopaeum
- edible naiad
- fanshell
- Cyrnotheba corsica
- Cysticus gutta
- Cysticus josephinae
- Cytora hirsutissima
- Damochlora millepunctata
- Damochlora spina
- Dancea rodriguezensis
- Delos oualanensis
- Dendrotrochus ponapensis
- Deroceras fatrense
- Deroceras tarraceuse
- Deroceras vascoana
- mount matafao different snail
- Diastole tenuistriata
- Diplodon dunkerianus
- Diplodon expansus
- Diplodon fontaineanus
- Diplodon pfeifferi
- Diplommatina alata
- Diplommatina aurea
- Diplommatina cacuminulus
- Diplommatina circumstomata
- Diplommatina crassilabris
- Diplommatina gibboni
- Diplommatina inflatula
- Diplommatina lamellata
- Diplommatina lateralis
- Diplommatina lutea
- Diplommatina madaiensis
- Diplommatina pyramis
- Diplommatina ringens
- Dipnelix pertricosa
- Discocharopa mimosa
- salina mucket
- Discula bicarinata
- Discula bulweri
- Discula cheiranthicola
- Discula echinulata
- Discula lyelliana
- Discula oxytropis
- Discula tectiformis
- Discula tetrica
- Disculella maderensis
- Discus engonata
- marbled disc
- Discus scutula
- Ditropis whitei
- Divellomelon hillieri
- Dolapex amiculus
- Draparnaudia anniae
- Draparnaudia subnecata
- dromedary naiad
- Drymaeus acervatus
- Drymaeus henseli
- Dupontia levis
- Dupontia nitella
- Dupontia perlucida
- Dupontia poweri
- Dupontia proletaria
- Dupucharopa millestriata
- durangonella de coahuila snail
- Edentulina usambarensis
- Elasmias cernicum
- Elasmias jaurffreti
- Elasmias kitaiwojimanum
- Elasmias quadrasi
- Elimia acuta
- mud elimia
- black-crest elimia
- round rocksnail
- lily shoals elimia
- Elimia aterina
- walnut elimia
- flaxen elimia
- short-spired elimia
- cahaba elimia
- spindle elimia
- closed elimia
- lacy elimia
- banded elimia
- fusiform elimia
- coldwater elimia
- Elimia gibbera
- high-spired elimia
- silt elimia
- gladiator elimia
- constricted elimia
- knotty elimia
- slowwater elimia
- hearty elimia
- Elimia lachryma
- ribbed elimia
- Elimia macglameriana
- round-rib elimia
- caper elimia
- rough-lined elimia
- Elimia porrecta
- pupa elimia
- Elimia pybasi
- pygmy elimia
- Elimia strigosa
- Elimia teres
- Elimia troostiana
- cobble elimia
- puzzle elimia
- squat elimia
- Elisolimax rufescens
- Ellipsaria lineolata
- Elliptio ahenea
- Elliptio angustata
- alabama spike
- chipola slabshell
- Elliptio congaraea
- Elliptio dariensis
- Elliptio downiei
- Elliptio folliculata
- brother spike
- Elliptio hopetonensis
- yellow lance
- Elliptio mcmichaeli
- recovery pearly mussel
- Elliptio producta
- altamaha lance
- altamaha spinymussel
- tar river spiny mussel
- florida lance
- purple bankclimber
- escargot de quimper
- arc-form pearly mussel
- angled riffleshell
- cumberlandian combshell
- oyster mussel
- arcuate pearly mussel
- acorn pearly mussel
- narrow catspaw
- forkshell
- upland combshell
- southern acorn riffle shell
- penitent mussel
- fine-rayed pearly mussel
- nearby pearly mussel
- Sampson's naiad
- cumberland leafshell
- turgid riffle shell
- white desert snail
- thousand palms desert snail
- morongo desert snail
- Erepta nevilli
- Erepta odontina
- Erepta stylodon
- Newcomb's snail
- Eua zebrina
- Euchondrus ramonensis
- Euhadra murayamai
- Euhadra nachicola
- Euhadra sadoensis
- Euonyma curtissima
- Eximiorhagada asperrima
- Fagotia esperi
- Falkneri camerani
- Falniowskia neglectissimum
- Fenouilia kreitneri
- hood ancylid
- Ferrissia tanganyicensis
- Fissuria bovi
- moapa pebblesnail
- columbia pebblesnail
- pahranagat pebblesnail
- Fluviopupa gracilis
- Fluviopupa ramsayi
- Fonscochlea accepta
- Fonscochlea aquatica
- Fonscochlea billakalina
- Fonscochlea conica
- Fonscochlea zeidleri
- tapered cavesnail
- greenbrier cavesnail
- Fusconaia askewi
- Fusconaia barnesiana
- shiny pigtoe
- fine-rayed pigtoe pearly mussel
- narrow pigtoe
- Fusconaia lananensis
- atlantic pigtoe
- Fusconaia ozarkensis
- long solid mussel
- Fusconaia succissa
- Gabbiella balovalensis
- Gabbiella humerosa
- Gabbiella rosea
- Gabbiella stanleyi
- Gastrocopta boninensis
- Gastrocopta chichijimana
- Gastrocopta ogasawarana
- Geminoropa scindocataracta
- Geomitra coronata
- Geomitra delphinuloides
- madeiran land snail
- Geomitra tiarella
- Georissa biangulata
- Georissa elegans
- Georissa laevigata
- Georissa laseroni
- Georissa rufula
- Gibberula cucullata
- Gibberula modica
- Gibberula puntillum
- Gibbus lyonetianus
- Gittenbergeri turriplana
- Glacidorbis occidentalis
- Glacidorbis pawpela
- Glacidorbis pedderi
- Glyphyalinia pecki
- Glyptophysa petiti
- Glyptorhagada bordaensis
- Glyptorhagada euglypta
- Glyptorhagada janaslini
- Glyptorhagada kooringensis
- Glyptorhagada silveri
- Glyptorhagada tattawuppana
- Gonaxis usambarensis
- Gonaxis vosseleri
- Gonidomus newtoni
- Gonidomus sulcatus
- Gonospira bourguignati
- Gonospira cylindrella
- Gonospira deshayesi
- Gonospira duponti
- Gonospira funicula
- Gonospira holostoma
- Gonospira madgei
- Gonospira nevilli
- Gonospira striaticostus
- Gonospira teres
- Gonospira turgidula
- Gonospira uvula
- Gonyostomus gonyostomus
- Gonyostomus insularis
- Granulina parilis
- Granulomelon grandituberculatum
- Graziana klazenfurtensis
- Graziana lacheineri
- Graziana pupula
- Gulella alleni
- Gulella amaniensis
- Gulella amboniensis
- Gulella antelmeana
- Gulella aprosdoketa
- Gulella bomolensis
- Gulella claustralis
- Gulella cuspidata
- Gulella foliifera
- Gulella greenwayi
- Gulella grossa
- Gulella inconspicua
- Gulella intrusa
- Gulella ludwigi
- Gulella mayottensis
- Gulella ndamanyiluensis
- Gulella paucidens
- Plant's gulella snail
- Gulella puzeyi
- Gulella salpinx
- Gulella taitensis
- Gulella thomasseti
- Gulella translucida
- Gulella unidentata
- Gulella usambarica
- Gulickia alexandri
- Gyliotrachela catherina
- Gyraulus cockburni
- Gyraulus mauritianus
- excised slitshell
- striate slitshell
- pagoda slitshell
- ribbed slitshell
- pyramid slitshell
- round slitshell
- Hacrochlamys lineolatus
- Hadra wilsoni
- northern abalone
- Halolimnohelix conradti
- Harmogenanina argentea
- Harmogenanina detecta
- Harmogenanina implicata
- Harmogenanina linophora
- Harmogenanina subdetecta
- Hauffenia kerschneri
- Hauffenia minuta
- Hauffenia sp. nov.
- Hauffenia wienerwaldensis
- Hedleya macleayi
- Hedleyoconcha ailaketoae
- Helenoconcha leptalea
- Helenoconcha minutissima
- Helenoconcha polyodon
- Helenoconcha pseustes
- Helenoconcha sexdentata
- Helenodiscus bilamellata
- Helenodiscus vernoni
- Helicarion australis
- Helicarion leopardina
- Helicarion porrectus
- Helicarion rubicundus
- Helicella bierzona
- Helicella gasulli
- Helicella mariae
- Helicella orzai
- Helicella stiparum
- Helicella striatitala
- Helicella zaratei
- Helicella zujarensis
- Helicina rostrata
- Helicopsis conopsis
- Helicostyla smargadina
- Helix ceratina
- Helix godetiana
- Helix obruta
- Helix texta
- allyn Smith's banded snail
- kern shoulderband
- mesa shoulderband
- victorville shoulderband
- banded dune snail
- Hemicycla adansoni
- Hemicycla berkeleyi
- Hemicycla inutilis
- Hemicycla mascaensis
- Hemicycla modesta
- Hemicycla plicaria
- Hemicycla pouchet
- Hemicycla saulcyi
- Hemistoma beaumonti
- Hemistoma flexicolumella
- Hemistoma gemma
- Hemistoma minutissima
- Hemistoma pusillior
- Hemistoma whiteleggei
- Heterocyclus perroquini
- Heterocyclus petiti
- Heteropoma fulva
- Heteropoma glabratum
- Heteropoma pyramis
- Heteropoma quadrasi
- Heteropoma tuberculatum
- Heteropoma turritum
- Himeroconcha fusca
- Himeroconcha lamlanensis
- Himeroconcha quadrasi
- Himeroconcha rotula
- bear paw clam
- china clam
- Hirinaba curytibana
- Hirthia globosa
- Hirthia littorina
- Hongolua kondorum
- Hungerfordia pelewensis
- Hydrobia scamandri
- Hygromia golasi
- Hypnophila remyi
- Hypolysia connollyana
- Hypolysia usambarica
- Iberus gualtieranus
- Ichnosomunda sacchii
- Idiomela subplicata
- Iglica gratulabunda
- Iglica kleinzellensis
- Imperturbatia violescens
- Incerticyclus cinereus
- Incerticyclus martinicensis
- magazine mountain middle-toothed snail
- Insulivitrina machadoi
- Insulivitrina mascaensis
- Insulivitrina reticulata
- Insulivitrina tuberculata
- spiny river snail
- Iredaleoconcha caporaphe
- Jacksonena delicata
- Jacksonena rudis
- Japonia hispida
- Japonia shigetai
- Japonia striatula
- Jardinella acuminata
- Jardinella carnarvonensis
- Jardinella colmani
- Jardinella coreena
- Jardinella corrugata
- Jardinella edgbastonensis
- Jardinella eulo
- Jardinella exigua
- Jardinella isolata
- Jardinella jesswiseae
- Jardinella pallida
- Jardinella zeidlerorum
- Jokajdon callizonus
- Jokajdon tumidulus
- Kaliella hongkongensis
- Kimboraga exanimus
- Kimboraga koolanensis
- Kimboraga micromphala
- Kimboraga yammerana
- Kondoa kondorum
- Kondoconcha othnius
- Kondoraphe kiyokoae
- Kubaryia pilikia
- Kubaryiellus kubaryi
- Kusaiea frivola
- Lacustrelix minor
- Lacustrelix yerelinana
- Ladronellum mariannarum
- Laevicaulis haroldi
- Lambis violacea
- Lamellidea biplicata
- Lamellidea microstoma
- Lamellidea monodonta
- Lamellidea nakadai
- Lamellidea ogasawarana
- Lamellidea subcylindrica
- Laminella sanguinea
- Lamnifera pauli
- Lampadia webbiana
- Lampedusa imitratix
