Maine Biota Project

Mollusks of Maine

(Kingdom Animalia, Phylum Mollusca)


Below is a working list of Maine’s mollusks. Species attributed to Pollock (1998) are those that were reported as occurring between Cape Cod and Newfoundland.
Class Order Family Genus Species Authority Common Name Sources (full citations given below this table)
Bivalvia Myoida Hiatellidae Cyrtodaria siliqua (Spengler) northern propellerclam Pollock (1998, p. 154.)
Bivalvia Myoida Hiatellidae Hiatella arctica (L.) Arctic hiatella DMC; Pollock (1998, p. 154.)
Bivalvia Myoida Hiatellidae Panomya norvegica (Spengler) Arctic roughmya Procter (1933, p. 193., as Panomya arctica)
Bivalvia Myoida Myidae Mya arenaria L. softshell (clam) DMC; Procter (1933, p. 193.)
Bivalvia Myoida Myidae Mya truncata L. truncate softshell clam DMC; Procter (1933, p. 193.)
Bivalvia Myoida Pholadidae Barnea truncata (Say) Atlantic mud piddock DMC
Bivalvia Myoida Pholadidae Pholas dactylus L. European piddock Pollock (1998, p. 162.)
Bivalvia Myoida Pholadidae Xylophaga dorsalis (Turton) ? DMC
Bivalvia Myoida Pholadidae Zirfaea crispata (L.) Atlantic great piddock DMC; Pollock (1998, p. 162.)
Bivalvia Myoida Teredinidae Teredo navalis L. naval shipworm DMC
Bivalvia Mytiloida Mytilidae Crenella decussata (Montagn) ? DMC; Procter (1933, p. 183.)
Bivalvia Mytiloida Mytilidae Crenella glandula (Totten) glandular crenella DMC; Procter (1933, p. 183.)
Bivalvia Mytiloida Mytilidae Geukensia demissa (Dillwyn) ribbed mussel DMC as Modiolus demissus; Pollock (1998, p. 157.)
Bivalvia Mytiloida Mytilidae Modiolus modiolus (L.) northern horsemussel DMC; Procter (1933, p. 182.)
Bivalvia Mytiloida Mytilidae Musculus corrugatus (Stimpson) ? Procter (1933, p. 183.)
Bivalvia Mytiloida Mytilidae Musculus discors (L.) discordant mussel DMC; Procter (1933, p. 183., as Musculus substriatus)
Bivalvia Mytiloida Mytilidae Musculus niger (J. E. Gray) black mussel Procter (1933, p. 183., as Musculus nigra)
Bivalvia Mytiloida Mytilidae Mytilus edulis L. blue mussel DMC; Procter (1933, p. 182.)
Bivalvia Nuculoida Nuculanidae Nuculana tenuisulcata (Couthouy) thin nutclam Procter (1933, p. 179., as Leda tenuisulcata)
Bivalvia Nuculoida Nuculidae Ennucula tenuis (Montagu) smooth nutclam DMC as Nucula tenuis; Procter (1933, p. 179., as Nucula tenuis)
Bivalvia Nuculoida Nuculidae Nucula delphinodonta Mighels & C. B. Adams dolphintooth nutclam DMC; Procter (1933, p. 179.)
Bivalvia Nuculoida Nuculidae Nucula proxima Say Atlantic nutclam DMC; Procter (1933, p. 179.)
Bivalvia Nuculoida Yoldiidae Megayoldia thraciaeformis (Storer) broad yoldia Procter (1933, p. 180., as Yoldia thraciaeformis)
Bivalvia Nuculoida Yoldiidae Yoldia amygdalea Valenciennes almond yoldia Pollock (1998, p. 158.)
Bivalvia Nuculoida Yoldiidae Yoldia limatula (Say) file yoldia DMC; Procter (1933, p. 180.)
Bivalvia Nuculoida Yoldiidae Yoldia myalis (Couthouy) oval yoldia Procter (1933, p. 180.)
Bivalvia Nuculoida Yoldiidae Yoldia sapotilla (Gould) short yoldia DMC; Procter (1933, p. 180.)
Bivalvia Ostreoida Anomiidae Anomia aculeata (Müller) ? DMC; Procter (1933, p. 181.)
Bivalvia Ostreoida Anomiidae Anomia simplex (D'Orbigny) common jingle DMC; Procter (1933, p. 182.)
Bivalvia Ostreoida Anomiidae Anomia squamula L. prickly jingle Pollock (1998, p. 150.)
Bivalvia Ostreoida Ostreidae Crassostrea virginica (Gmelin) eastern oyster DMC; Pollock (1998, p. 160.)
Bivalvia Ostreoida Ostreidae Ostrea edulis L. edible oyster DMC
Bivalvia Ostreoida Pectinidae Argopecten irradians (Lamarck) bay scallop DMC as Aequipecten irradians; Pollock (1998, p. 160.)
Bivalvia Ostreoida Pectinidae Chlamys islandica Müller Iceland scallop Procter (1933, p. 181., as Pecten islandicus)
Bivalvia Ostreoida Pectinidae Placopecten magellanicus (Gmelin) sea scallop DMC; Procter (1933, p. 181., as Pecten magellanicus)
Bivalvia Pholadomyoida Cuspidariidae Cuspidaria glacialis (G. O. Sars) glacial dipperclam Pollock (1998, p. 153.)
Bivalvia Pholadomyoida Cuspidariidae Cuspidaria rostrata (Spengler) rostrate dipperclam Pollock (1998, p. 153.)
Bivalvia Pholadomyoida Lyonsiidae Lyonsia arenosa (MÖller) sandy lyonsia Procter (1933, p. 185.)
Bivalvia Pholadomyoida Lyonsiidae Lyonsia hyalina Conrad glassy lyonsia DMC; Procter (1933, p. 185.)
Bivalvia Pholadomyoida Pandoridae Pandora gouldiana Dall Gould pandora DMC; Procter (1933, p. 185.)
Bivalvia Pholadomyoida Periplomatidae Periploma fragilis Totten ? Procter (1933, p. 184.)
Bivalvia Pholadomyoida Periplomatidae Periploma leanum (Conrad) Lea spoonclam Pollock (1998, p. 161.)
Bivalvia Pholadomyoida Thraciidae Thracia conradi Couthouy Conrad thracia Procter (1933, p. 184.)
Bivalvia Pholadomyoida Thraciidae Thracia myopsis MÖller ? Procter (1933, p. 184.)
Bivalvia Pholadomyoida Thraciidae Thracia truncata Mighels & Adams ? Procter (1933, p. 184.)
Bivalvia Solemyoida Solemyidae Solemya borealis Totten boreal awningclam DMC; Pollock (1998, p. 163.)
Bivalvia Solemyoida Solemyidae Solemya velum Say Atlantic awningclam Pollock (1998, p. 163.)
Bivalvia Unionoida Margaritiferidae Margaritifera margaritifera (L.) eastern pearlshell FMM (pp. 58–61.)
Bivalvia Unionoida Unionidae Alasmidonta undulata (Say) triangle floater FMM (pp. 66–69.)
Bivalvia Unionoida Unionidae Alasmidonta varicosa (Lamarck) brook floater FMM (pp. 62–65.)
Bivalvia Unionoida Unionidae Elliptio complanata (Lightfoot) eastern elliptio FMM (pp. 82–85.)
Bivalvia Unionoida Unionidae Lampsilis cariosa (Say) yellow lampmussel FMM (pp. 90–93.)
Bivalvia Unionoida Unionidae Lampsilis radiata (Gmelin) eastern lampmussel FMM (pp. 94–97.)
Bivalvia Unionoida Unionidae Leptodea ochracea (Say) tidewater mucket FMM (pp. 86–89.)
Bivalvia Unionoida Unionidae Pyganodon cataracta (Say) eastern floater FMM (pp. 74–77.)
Bivalvia Unionoida Unionidae Pyganodon implicata (Say) alewife floater FMM (pp. 78–82., as Anodonta implicata)
Bivalvia Unionoida Unionidae Strophitus undulatus (Say) creeper FMM (pp. 70–73.)
Bivalvia Veneroida Arcticidae Arctica islandica (L.) ocean quahog DMC; Procter (1933, p. 185., as Cyprina islandica)
Bivalvia Veneroida Astartidae Astarte borealis (Schumacher) boreal tridonta Procter (1933, p. 187.)
Bivalvia Veneroida Astartidae Astarte castanea (Say) smooth astarte Procter (1933, p. 187.)
Bivalvia Veneroida Astartidae Astarte crenata ssp. subequilatera (Gray) / Sowerby lentil astarte Procter (1933, p. 187., as Astarte subaequilatera)
Bivalvia Veneroida Astartidae Astarte montagui (Dillwyn) Montagu tridonta Pollock (1998, p. 151., as Tridonta montagui)
Bivalvia Veneroida Astartidae Astarte portlandica Mighels ? Procter (1933, p. 186.)
Bivalvia Veneroida Astartidae Astarte quadrans Gould ? Procter (1933, p. 187.)
Bivalvia Veneroida Astartidae Astarte striata Leach ? Procter (1933, p. 188.)
Bivalvia Veneroida Astartidae Astarte undata Gould wavy astarte DMC; Procter (1933, p. 186.)
Bivalvia Veneroida Cardiidae Cerastoderma pinnulatum (Conrad) northern dwarf cockle DMC; Procter (1933, p. 190., as Cardium pinnulatum)
Bivalvia Veneroida Cardiidae Clinocardium ciliatum (Fabricius) hairy cockle Procter (1933, p. 190., as Cardium ciliatum)
Bivalvia Veneroida Cardiidae Serripes groenlandicus (Mohr) Greenland cockle Procter (1933, p. 191.)
Bivalvia Veneroida Carditidae Cyclocardia novangliae (E. S. Morse) ? Procter (1933, p. 188., as Venericardia novangliae)
Bivalvia Veneroida Carditidae Venericardia borealis ? northern cyclocardia DMC (as Cardita borealis; Procter (1933, p. 188.)
Bivalvia Veneroida Lucinidae Lucinoma filosa (Stimpson) northeast lucina Pollock (1998, p. 155.)
Bivalvia Veneroida Mactridae Mactromeris polynyma (Stimpson) Atlantic surfclam DMC (also as Spisula polynyma)
Bivalvia Veneroida Mactridae Mulinia lateralis (Say) dwarf surfclam Pollock (1998, p. 155.)
Bivalvia Veneroida Mactridae Spisula solidissima (Dillwyn) Atlantic surfclam DMC; Procter (1933, p. 192.)
Bivalvia Veneroida Mesodesmatidae Mesodesma arctatum (Conrad) Arctic wedgeclam Pollock (1998, p. 156.)
Bivalvia Veneroida Petricolidae Petricolaria pholadiformis (Lamarck) false angelwing DMC as Petricola pholadiformis; Pollock (1998, p. 162., as Petricola pholadiformis)
Bivalvia Veneroida Pharidae Ensis directus Conrad Atlantic jackknife DMC; Procter (1933, p. 192.)
Bivalvia Veneroida Pharidae Siliqua costata Say Atlantic razor DMC; Pollock (1998, p. 163.)
Bivalvia Veneroida Semelidae Cumingia tellinoides (Conrad) tellin semele Pollock (1998, p. 162.)
Bivalvia Veneroida Tellinidae Macoma balthica (L.) Baltic macoma DMC; Procter (1933, p. 191.)
Bivalvia Veneroida Tellinidae Macoma calcarea (Gmelin) chalky macoma Procter (1933, p. 192.)
Bivalvia Veneroida Tellinidae Macoma tenta (Say) elongate macoma Pollock (1998, p. 164.)
Bivalvia Veneroida Tellinidae Tellina agilis Stimpson northern dwarf tellin DMC; Pollock (1998, p. 164.)
Bivalvia Veneroida Thyasiridae Axinopsida orbiculata (G. O. Sars) orbicular axinopsid Procter (1933, p. 189.)
Bivalvia Veneroida Thyasiridae Thyasira gouldii (Philippi) Gould cleftclam DMC; Procter (1933, p. 189.)
Bivalvia Veneroida Thyasiridae Thyasira plana (Verrill & Bush) ? Procter (1933, p. 189.)
Bivalvia Veneroida Thyasiridae Thyasira trisinuata (d'Orbigny) Atlantic cleftclam Pollock (1998, p. 165.)
Bivalvia Veneroida Turtoniidae Turtonia minuta (Fabricius) minute turton Procter (1933, p. 190.)
Bivalvia Veneroida Veneridae Gemma gemma Deshayes amethyst gemclam DMC; Pollock (1998, p. 165.)
Bivalvia Veneroida Veneridae Liocyma fluctuosa (Gould) ? Procter (1933, p. 191.)
Bivalvia Veneroida Veneridae Mercenaria mercenaria (L.) northern quahog DMC; Procter (1933, p. 191., as Venus mercenaria)
Bivalvia Veneroida Veneridae Pitar morrhuanus (Linsley) false quahog DMC; Pollock (1998, p. 165.)
Bivalvia ? Saxicavidae Saxicava arctica (L.) ? Procter (1933, p. 193.)
Cephalopoda Teuthida Loliginidae Loligo pealeii Lesueur longfin inshore squid DMC
Cephalopoda Octopoda Octopodidae Bathypolypus arcticus (Prosch) spoonarm octopus DMC; Procter (1933, p. 213., as Polypus arcticus)
Cephalopoda Sepiolida Sepiolidae Semirossia tenera (Verrill) ? Pollock (1998, p. 167.)
Cephalopoda Teuthida Ommastrephidae Illex illecebrosus (Lesueur) northern shortfin squid Pollock (1998, p. 166.)
Gastropoda Archaeogastropoda Calliostomatidae Calliostoma bairdii A. E. Verrill & S. Smith Baird topsnail Pollock (1998, p. 130.)
Gastropoda Archaeogastropoda Calliostomatidae Calliostoma occidentale (Mighels & C. B. Adams) boreal topsnail Procter (1933, p. 197.)
Gastropoda Archaeogastropoda Fissurellidae Puncturella noachina (L.) diluvian puncturella DMC; Procter (1933, p. 195., as Puncturella princeps)
Gastropoda Archaeogastropoda Trochidae Lischkeia ottoi (Philippi) otto spiny topsnail Pollock (1998, p. 130.)
Gastropoda Archaeogastropoda Trochidae Lischkeia regularis ? spiny topsnail Pollock (1998, p. 130.)
Gastropoda Archaeogastropoda Trochidae Margarites cinerea (Couthouy) ? Procter (1933, p. 196.)
Gastropoda Archaeogastropoda Trochidae Margarites costalis (Gould) boreal rosy margarite Pollock (1998, p. 130.)
Gastropoda Archaeogastropoda Trochidae Margarites groenlandicus (Gmelin) Greenland margarite DMC; Procter (1933, p. 196., as Margarites groenlandica)
Gastropoda Archaeogastropoda Trochidae Margarites helicinus (Phipps) spiral margarite Procter (1933, p. 196., as Margarites helicina)
Gastropoda Archaeogastropoda Trochidae Margarites olivacea (Brown) ? Procter (1933, p. 196.)
Gastropoda Archaeogastropoda Trochidae Molleria costulata (MÖller) ? Procter (1933, p. 196.)
Gastropoda Archaeogastropoda Trochidae Solariella obscura (Couthouy) obscure solarelle Procter (1933, p. 196.)
Gastropoda Archaeopulmonata Ellobiidae Leucophytia bidentata ? eastern melampus, salt marsh pulmonate Pollock (1998, p. 125.)
Gastropoda Archaeopulmonata Ellobiidae Melampus bidentatus Say eastern melampus DMC
Gastropoda Archaeopulmonata Ellobiidae Phytia myosotis Say mouse melampus Pollock (1998, p. 125.)
Gastropoda Architaenioglossa Viviparidae Campeloma decisum (Say) pointed campeloma Martin (1999, p. 41.); Pollock (1998, p. 125.)
Gastropoda Architaenioglossa Viviparidae Campeloma rufum (Haldeman) ? Martin (1999, p. 41.); Pollock (1998, p. 125.)
Gastropoda Architaenioglossa Viviparidae Cipangopaludina chinensis ssp. malleata (Reeve) Chinese mysterysnail Martin (1999, p. 41.)
Gastropoda Aspidobranchia Lepetidae Lepeta caeca (Müller) ? Procter (1933, p. 195.)
Gastropoda Cephalaspidea Cylichnidae Acteocina canaliculata (Say) channeled barrel-bubble Pollock (1998, p. 116.)
Gastropoda Cephalaspidea Cylichnidae Cylichna alba (T. Brown) white chalice-bubble DMC; Procter (1933, p. 210.)
Gastropoda Cephalaspidea Cylichnidae Cylichna gouldii (Couthouy) ? Procter (1933, p. 209. as Retusa gouldii)
Gastropoda Cephalaspidea Cylichnidae Scaphander punctostriatus (Mighels & C. B. Adams) giant canoe-bubble Pollock (1998, p. 117.)
Gastropoda Cephalaspidea Diaphanidae Diaphana minuta Brown arctic paper-bubble Procter (1933, p. 209. as Diaphana debilis)
Gastropoda Cephalaspidea Haminoeidae Haminoea solitaria (Say) solitary glassy-bubble DMC
Gastropoda Cephalaspidea Philinidae Philine lima (T. Brown) file paper-bubble Procter (1933, p. 210.)
Gastropoda Cephalaspidea Retusidae Retusa obtusa Mighels arctic barrel-bubble Procter (1933, p. 209. as Retusa pertenius)
Gastropoda Gymnosomata Clionidae Clione limacina (Phipps) naked sea butterfly DMC; Pollock (1998, p. 132.)
Gastropoda Heterostropha Mathildidae Turritellopsis acicula (Stimpson) needle turretsnail Procter (1933, p. 203.)
Gastropoda Heterostropha Pyramidellidae Boonea seminuda (C. B. Adams) half-smooth DMC
Gastropoda Heterostropha Pyramidellidae Couthouyella striatula (Couthouy) ? Procter (1933, p. 197.)
Gastropoda Heterostropha Pyramidellidae Cremula eburnea (Stimpson) ? Procter (1933, p. 197.)
Gastropoda Heterostropha Pyramidellidae Odostomia modesta (Stimpson) ? Pollock (1998, p. 129.)
Gastropoda Heterostropha Pyramidellidae Pyramidella spp. ? ? Pollock (1998, p. 129.)
Gastropoda Heterostropha Pyramidellidae Turbonilla spp. ? ? Pollock (1998, p. 129.)
Gastropoda Heterostropha Valvatidae Valvata lewisi Currier fringed Valvata Nartin (1999, p. 41.)
Gastropoda Heterostropha Valvatidae Valvata sincera Say mossy Valvata Nartin (1999, p. 41.)
Gastropoda Heterostropha Valvatidae Valvata tricarinata (Say) mossy Valvata Nartin (1999, p. 41.)
Gastropoda Neogastropoda Buccinidae Buccinum scalariforme Moller ladder whelk Pollock (1998, p. 118.)
Gastropoda Neogastropoda Buccinidae Buccinum totteni Stimpson thin whelk Pollock (1998, p. 118.)
Gastropoda Neogastropoda Buccinidae Buccinum undatum L. waved whelk DMC; Procter (1933, p. 206.)
Gastropoda Neogastropoda Buccinidae Colus pubescens (A. E. Verrill) hairy whelk Pollock (1998, p. 118.)
Gastropoda Neogastropoda Buccinidae Colus pygmaeus (Gould) pygmy whelk DMC; Procter (1933, p. 207.)
Gastropoda Neogastropoda Buccinidae Colus stimpsoni (Mørch) Stimpson whelk DMC; Procter (1933, p. 207.)
Gastropoda Neogastropoda Buccinidae Colus terraenovae Bouchet & Warren ventricose whelk Pollock (1998, p. 118., as Colus ventricosus)
Gastropoda Neogastropoda Buccinidae Neptunea decemcostata (Say) ? DMC; Procter (1933, p. 206.)
Gastropoda Neogastropoda Buccinidae Neptunea despecta (L.) disreputable whelk Pollock (1998, p. 118.)
Gastropoda Neogastropoda Buccinidae Neptunea lyrata ssp. ? (Gmelin) wrinkle whelk Pollock (1998, p. 118.)
Gastropoda Neogastropoda Buccinidae Volutopsius norwegicus (Gmelin) Norway whelk Pollock (1998, p. 118., as Volutopsius norvegicus)
Gastropoda Neogastropoda Cancellariidae Admete couthouyi (Jay) northern admete DMC; Procter (1933, p. 207.)
Gastropoda Neogastropoda Columbellidae Astyris lunata (Say) lunar dovesnail Pollock (1998, p. 121.)
Gastropoda Neogastropoda Columbellidae Astyris rosacea (Gould) rosy northern dovesnail Procter (1933, p. 205., as Columbella rosacea)
Gastropoda Neogastropoda Columbellidae Columbella dissimilis Stimpson ? Procter (1933, p. 205.)
Gastropoda Neogastropoda Columbellidae Mitrella lunata (Say) lunar dovesnail DMC
Gastropoda Neogastropoda Conidae Pyrgocythara plicosa (C. B. Adams) plicate mangelia Pollock (1998, p. 131.)
Gastropoda Neogastropoda Muricidae Boreotrophon clathratus (L.) clathrate trophon Pollock (1998, p. 126.)
Gastropoda Neogastropoda Muricidae Boreotrophon craticulatum ? latticed trophon Pollock (1998, p. 126.)
Gastropoda Neogastropoda Muricidae Boreotrophon truncatus (Strom) bobtail trophon Procter (1933, p. 204., as Trophon truncatus)
Gastropoda Neogastropoda Muricidae Nucella lapillus (L.) Atlantic dogwinkle DMC; Procter (1933, p. 205., as Thais lapillus)
Gastropoda Neogastropoda Muricidae Urosalpinx cinerea (Say) Atlantic oyster drill DMC
Gastropoda Neogastropoda Nassariidae Nassarius obsoletus (Say) eastern mudsnail DMC; Pollock (1998, p. 127., as Ilyanassa obsoleta)
Gastropoda Neogastropoda Nassariidae Nassarius trivittatus (Say) threeline mudsnail DMC; Procter (1933, p. 205., as Alectrion trivittata)
Gastropoda Neogastropoda Volutomitridae Volutomitra groenlandica (Moller) false Greenland miter Pollock (1998, p. 132.)
Gastropoda Neotaenioglossa Aporrhaididae Aporrhais occidentalis Beck American pelicanfoot Procter (1933, p. 204.)
Gastropoda Neotaenioglossa Calyptraeidae Crepidula convexa Say convex slippersnail DMC; Procter (1933, p. 200., as Crepidula glauca)
Gastropoda Neotaenioglossa Calyptraeidae Crepidula fornicata (L.) common Atlantic slippersnail DMC; Procter (1933, p. 200.)
Gastropoda Neotaenioglosa Calyptraeidae Crepidula plana Say eastern white slippersnail DMC; Pollock (1998, p. 119.)
Gastropoda Neotaenioglossa Calyptraeidae Crucibulum striatum Say striate cup-and-saucer Procter (1933, p. 200.)
Gastropoda Neotaenioglossa Cerithiidae Bittium alternatum (Say) alternate bittium Pollock (1998, p. 120.)
Gastropoda Neotaenioglossa Cerithiidae Paludestrina [minuta?] (Totten) ? Procter (1933, p. 201.)
Gastropoda Neotaenioglossa Epitoniidae Acirsa borealis (Lyell) chalky wentletrap Pollock (1998, p. 122., as Acirsa borealis and Acirsa costulata)
Gastropoda Neotaenioglossa Epitoniidae Boreoscala greenlandica (G. Perry) Greenland wentletrap Pollock (1998, p. 122.)
Gastropoda Neotaenioglossa Epitoniidae Epitonium greenlandicum (Perry) ? Procter (1933, p. 198.)
Gastropoda Neotaenioglossa Amnicolidae Amnicola decisus Haldeman ? Martin (1999, p. 41.)
Gastropoda Neotaenioglossa Amnicolidae Amnicola limosus (Say) mud Amnicola Martin (1999, p. 41.)
Gastropoda Neotaenioglossa Amnicolidae Lyogyrus purpoideus (Gould) pupa duskysnail Martin (1999, p. 41.)
Gastropoda Neotaenioglossa Hydrobiidae Ecrobia truncata Stimpson minute hydrobia DMC as Hydrobia minuta
Gastropoda Neotaenioglossa Hydrobiidae Floridobia winkleyii (Pilsbry) New England siltsnail Martin (1999, p. 41. as Cincinnatia winkleyi
Gastropoda Neotaenioglossa Hydrobiidae Hydrobia totteni Morrison minute hydrobia DMC; Pollock (1998, p. 123.)
Gastropoda Neotaenioglossa Lamellariidae Lamellaria perspicua (L.) transparent lamellaria Pollock (1998, p. 123.)
Gastropoda Neotaenioglossa Littorinidae Lacuna vincta [var. vincta?] (Montagu) northern lacuna DMC; Procter (1933, p. 203.)
Gastropoda Neotaenioglossa Littorinidae Lacuna vincta var. fusca (Montagu) / (Gould) northern lacuna Procter (1933, p. 203.)
Gastropoda Neotaenioglossa Littorinidae Littorina littorea (L.) common periwinkle DMC; Procter (1933, p. 202.)
Gastropoda Neotaenioglossa Littorinidae Littorina obtusata (L.) yellow periwinkle, smooth periwinkle DMC; Procter (1933, p. 202., as Littorina obtusata palliata)
Gastropoda Neotaenioglossa Littorinidae Littorina saxatilis (Olivi) rough periwinkle DMC; Pollock (1998, p. 124.); Procter (1933, p. 202., as Littorina rudis and Littorina rudis var. tenebrosa)
Gastropoda Neotaenioglossa Naticidae Amauropsis islandica (Gmelin) Iceland moonsnail Procter (1933, p. 199.)
Gastropoda Neotaenioglossa Naticidae Bulbus smithii (Brown) ? DMC; Pollock (1998, p. 128.)
Gastropoda Neotaenioglossa Naticidae Cryptonatica affinis (Gmelin) Arctic moonsnail Procter (1933, p. 198., as Natica clausa)
Gastropoda Neotaenioglossa Naticidae Euspira immaculata (Totten) northern moonsnail Procter (1933, p. 199., as Polinices immaculata)
Gastropoda Neotaenioglossa Naticidae Euspira triseriata (Say) spotted moonsnail DMC as Lunatia triseriata; Pollock (1998, p. 128.)
Gastropoda Neotaenioglossa Naticidae Polinices groenlandica (MÖller) ? Procter (1933, p. 199.)
Gastropoda Neotaenioglossa Naticidae Polinices heros Say northern moonsnail DMC as Lunatia heros; Procter (1933, p. 198.)
Gastropoda Neotaenioglossa Rissoidae Cingula arenaria Mighels & Adams ? Procter (1933, p. 201.)
Gastropoda Neotaenioglossa Rissoidae Cingula areolata (Stimpson) ? Procter (1933, p. 201.)
Gastropoda Neotaenioglossa Rissoidae Cingula carinata Mighels & Adams ? Procter (1933, p. 201.)
Gastropoda Neotaenioglossa Rissoidae Cingula castanea (Moller) ? Procter (1933, p. 201.)
Gastropoda Neotaenioglossa Rissoidae Onora aculeus (Gould) ? DMC as Cingula aculeus; Procter (1933, p. 202.)
Gastropoda Neotaenioglossa Skeneopsidae Skeneopsis planorbis (Fabricius) flat skenea, orbsnail DMC; Procter (1933, p. 202., as Skenea planorbis)
Gastropoda Neotaenioglossa Trichotropidae Trichotropis borealis Broderip & G. B. Sowerby I boreal hairysnail Procter (1933, p. 203.)
Gastropoda Neotaenioglossa Turritellidae Tachyrhynchus erosus (Couthouy) eroded turretsnail Procter (1933, p. 203., as Turritella erosa)
Gastropoda Neotaenioglossa Velutinidae Velutina undata (T. Brown) wavy lamellaria Procter (1933, p. 199.)
Gastropoda Neotaenioglossa Velutinidae Velutina velutina (Muller) smooth lamellaria DMC; Procter (1933, p. 199.)
Gastropoda Nudibranchia Aeolidiidae Aeolidia papillosa (L.) shag-rug aeolis, maned nudibranch DMC; Procter (1933, p. 210.)
Gastropoda Nudibranchia Chromodorididae Cadlina leavis (L.) white Atlantic cadlina Pollock (1998, p. 140.)
Gastropoda Nudibranchia Coryphellidae Coryphella rufibranchialis [var. rufibranchialis?] (Stimpson) ? Procter (1933, p. 211.)
Gastropoda Nudibranchia Coryphellidae Coryphella rufibranchialis var. mananensis (Stimpson) ? Procter (1933, p. 211.)
Gastropoda Nudibranchia Dendronotidae Dendronotus frondosus (Ascanius) frond-aeolis DMC; Procter (1933, p. 212.)
Gastropoda Nudibranchia Dendronotidae Dendronotus robustus A. E. Verrill robust frond-aeolis Pollock (1998, p. 134.)
Gastropoda Nudibranchia Dotoidae Doto coronata (Gmelin) crown doto DMC; Procter (1933, p. 211.)
Gastropoda Nudibranchia Eubranchidae Eubranchus exiguus (Alder & Hancock) (dwarf) balloon aeolis DMC; Pollock (1998, p. 137.)
Gastropoda Nudibranchia Eubranchidae Eubranchus pallidus (Alder & Hancock) club-gilled nudibranch DMC; Pollock (1998, p. 137.)
Gastropoda Nudibranchia Facelinidae Cratena pilata (Gould) striped nudibranch DMC; Pollock (1998, p. 135.)
Gastropoda Nudibranchia Facelinidae Facelina bostonensis (Couthouy) Boston facelina Pollock (1998, p. 136.)
Gastropoda Nudibranchia Flabellinidae Coryphella stellata ? ? DMC
Gastropoda Nudibranchia Flabellinidae Flabellina gracilis (Alder & Hancock) ? Pollock (1998, p. 136.)
Gastropoda Nudibranchia Flabellinidae Flabellina pellucida (Alder & Hancock) pellucid aeolis Pollock (1998, p. 137.)
Gastropoda Nudibranchia Flabellinidae Flabellina salmonacea (Couthouy) salmon aeolis Pollock (1998, p. 137.)
Gastropoda Nudibranchia Flabellinidae Flabellina verrucosa (M. Sars) red-finger aeolis DMC as Coryphella diversa and Coryphella rufibranchialis; Pollock (1998, p. 137.)
Gastropoda Nudibranchia Goniodorididae Ancula gibbosa (Risso) Atlantic ancula DMC; Pollock (1998, p. 139.)
Gastropoda Nudibranchia Onchidorididae Acanthodoris pilosa (Abildgaard) hairy spiny doris DMC; Pollock (1998, p. 140.)
Gastropoda Nudibranchia Onchidorididae Adalaria proxima (Alder & Hancock) (yellow) false doris Pollock (1998, p. 140.)
Gastropoda Nudibranchia Onchidorididae Lamellidoris aspera (Alder & Hancock) ? Procter (1933, p. 212.)
Gastropoda Nudibranchia Onchidorididae Lamellidoris fusca (Muller) barnacle-eating onchidoris DMC
Gastropoda Nudibranchia Onchidorididae Onchidoris aspersa (Adler and Henderson) ? DMC
Gastropoda Nudibranchia Onchidorididae Onchidoris bilamellata (L.) barnacle-eating onchidoris Procter (1933, p. 212., as Lamellidoris bilamellata)
Gastropoda Nudibranchia Onchidorididae Onchidoris muricata (Muller) fuzzy onchidoris Pollock (1998, p. 140.)
Gastropoda Nudibranchia Polyceridae Polycera dubia (M. Sars) ridged sea slug Pollock (1998, p. 139.)
Gastropoda Nudibranchia Tergipedidae Catriona aurantia (Adler and Hancock) ? DMC
Gastropoda Nudibranchia Tergipedidae Catriona gymnota (Couthouy) orange-tip cuthona Pollock (1998, p. 136.)
Gastropoda Nudibranchia Tergipedidae Cuthona concinna (Alder & Hancock) ? DMC; Pollock (1998, p. 136.)
Gastropoda Nudibranchia Tergipedidae Tenellia fuscata (Gould) ? Pollock (1998, p. 138)
Gastropoda Nudibranchia Tergipedidae Tergipes tergipes (Forskal) ? DMC as Tergipes despectus; Pollock (1998, p. 137.)
Gastropoda Patellogastropoda Lottiidae Tectura testudinalis (Muller) tortoiseshell limpet DMC; Procter (1933, p. 195., as Acmaea testudinalis)
Gastropoda Sarcoglossa Elysiidae Elysia chlorotica Gould emerald elysia Pollock (1998, p. 135.)
Gastropoda Sarcoglossa Stiligeridae Ercolania nigra [?] ? dusky stiliger Pollock (1998, p. 138.)
Gastropoda Scaphopoda Dentaliidae Antalis entale var. occidentale (Stimpson) occidental tuskshell Procter (1933, p. 194., as Dentalium occidentale)
Gastropoda Scaphopoda Dentaliidae Antalis entale var. stimpsoni Henderson Stimpson tuskshell Pollock (1998, p. 133.)
Gastropoda Scaphopoda Dentaliidae Dentalium entalis L. ? Procter (1933, p. 194.)
Gastropoda Thecosomata Cavoliniidae Cavolinia uncinata (Rang) uncinate cavoline Pollock (1998, p. 132.)
Gastropoda Thecosomata Cavoliniidae Clio pyramidata L. pyramid clio Pollock (1998, p. 132.)
Gastropoda Thecosomata Cavoliniidae Cuvierina columnella (Rang) cigar pteropod Pollock (1998, p. 132.)
Gastropoda Thecosomata Cavoliniidae Diacria trispinosa (de Blainville) three-spine cavoline Pollock (1998, p. 132.)
Gastropoda Thecosomata Limacinidae Limacina helicina (Phipps) helicid pleropod DMC as Spiratella helicina)
Gastropoda Thecosomata Limacinidae Limacina retroversa (Fleming) retrovert pleropod DMC)
Gastropoda ? Turritidae Bela bicarinata var. violacea) (Mighels & Adams) ? Procter (1933, p. 208.)
Gastropoda ? Turritidae Bela blaneyi Bush ? Procter (1933, p. 209.)
Gastropoda ? Turritidae Bela cancellata (Mighels & Adams) ? Procter (1933, p. 208.)
Gastropoda ? Turritidae Bela decussata (Couthouy) ? Procter (1933, p. 208.)
Gastropoda ? Turritidae Bela exarata (MÖller) ? Procter (1933, p. 209.)
Gastropoda ? Turritidae Bela harpularia (Couthouy) ? Procter (1933, p. 208.)
Gastropoda ? Turritidae Bela incisula Verrill ? Procter (1933, p. 208.)
Gastropoda ? Turritidae Bela nobilis (MÖller) ? Procter (1933, p. 208.)
Gastropoda ? Turritidae Bela harpularia (Couthouy) ? Procter (1933, p. 208.)
Polyplacophora Lepidopleurida Hanleyidae Hanleya mendicaria (Mighels & Adams) ? Procter (1933, p. 177.)
Polyplacophora Chitonida Ischnochitonidae Ischnochiton albus (L.) northern white chiton DMC; Procter (1933, p. 178., as Trachydermon albus)
Polyplacophora Chitonida Ischnochitonidae Tonicella marmorea (Fabricius) mottled red chiton Procter (1933, p. 178.)
Polyplacophora Chitonida Ischnochitonidae Tonicella rubra (L.) northern red chiton Procter (1933, p. 178., as Trachydermon ruber)


Sources:
DMC = Darling Marine Center website (https://dmc.umaine.edu/research/species-list/) accessed 11 August 2020.
FMM = Nedeau, Ethan J., Mark A. McCollough, and Beth I. Swartz. 2000. The Freshwater Mussels of Maine. Maine Department of Inland Fisheries and Wildlife.
Martin, Scott M. 1999. Freshwater Snails (Mollusca: Gastropoda) of Maine. Northeastern Naturalist 6(1):39–88.
Pollock, Leland W. 1998. A Practical Guide to the Marine Animals of Northeastern North America. Rutgers University Press; New Brunswick, New Jersey. (ISBN 0-8135-2398-2)
Procter, William. 1933. Biological Survey of the Mount Desert Region, Part V: Marine Fauna. Philadelphia: The Wistar Institute of Anatomy and Biology.