The Marine Life Information Network

Information on the biology of species and the ecology of habitats found around the coasts and seas of the British Isles

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Snails, slugs, mussels, cockles, clams & squid (Mollusca)

= MarESA review.   = MarLIN review.

Species List

Chitons or 'coat-of-mail' shells (Polyplacophora) 4

Snails, slugs & sea butterflies (Gastropoda) 107

Image: Acanthodoris pilosa

 Hairy spiny doris (Acanthodoris pilosa)

Image: Acteon tornatilis

 Beer barrel (Acteon tornatilis)

Image: Adalaria proxima

 Yellow false doris (Adalaria proxima)

Image: Aeolidia papillosa

 Grey sea slug (Aeolidia papillosa)

Image: Aeolidiella alderi

 A sea slug (Aeolidiella alderi)

Image: Aeolidiella sanguinea

 A sea slug (Aeolidiella sanguinea)

Image: Akera bullata missing

 Royal flush sea slug (Akera bullata)

Image: Aldisa zetlandica missing

 A sea slug (Aldisa zetlandica)

Image: Amphorina farrani

 A sea slug (Amphorina farrani)

Image: Ancula gibbosa

 A sea slug (Ancula gibbosa)

Image: Antiopella cristata

 Crystal sea slug (Antiopella cristata)

Image: Aplysia punctata

 Dotted sea hare (Aplysia punctata)

Image: Aporrhais pespelecani

 Common pelican's foot (Aporrhais pespelecani)

Image: Armina loveni

 A sea slug (Armina loveni)

Image: Atagema gibba missing

 A sea slug (Atagema gibba)

Image: Berthella plumula

 Yellow-plumed sea slug (Berthella plumula)

Image: Bittium reticulatum

 Needle whelk (Bittium reticulatum)

Image: Buccinum undatum

 Common whelk (Buccinum undatum)

Image: Cadlina laevis

 White sea slug (Cadlina laevis)

Image: Caecum armoricum

 DeFolin's lagoon snail (Caecum armoricum)

Image: Calliopaea bellula missing

 A sea slug (Calliopaea bellula)

Image: Calliostoma zizyphinum

 Painted top shell (Calliostoma zizyphinum)

Image: Caloria elegans

 A sea slug (Caloria elegans)

Image: Calyptraea chinensis

 Chinaman's hat (Calyptraea chinensis)

Image: Carronella pellucida

 Milky-white sea slug (Carronella pellucida)

Image: Cerithiopsis tubercularis

 A gastropod (Cerithiopsis tubercularis)

Image: Colus islandicus

 A gastropod (Colus islandicus)

Image: Crepidula fornicata

 Slipper limpet (Crepidula fornicata)

Image: Crimora papillata

 A sea slug (Crimora papillata)

Image: Dendronotus frondosus

 Bushy-backed sea slug (Dendronotus frondosus)

Image: Diaphorodoris luteocincta

 Fried egg sea slug (Diaphorodoris luteocincta)

Image: Diodora graeca

 Common keyhole limpet (Diodora graeca)

Image: Doris pseudoargus

 Sea lemon (Doris pseudoargus)

Image: Doris sticta

 A sea slug (Doris sticta)

Image: Doto fragilis

 A sea slug (Doto fragilis)

Image: Duvaucelia odhneri

 Sea fan sea slug (Duvaucelia odhneri)

Image: Elysia viridis

 Solar-powered sea slug (Elysia viridis)

Image: Emarginula fissura

 Slit limpet (Emarginula fissura)

Image: Embletonia pulchra missing

 A sea slug (Embletonia pulchra)

Image: Epitonium clathrus

 Common wentletrap (Epitonium clathrus)

Image: Euspira catena

 Necklace shell (Euspira catena)

Image: Euspira nitida missing

 Alder's necklace shell (Euspira nitida)

Image: Facelina auriculata

 Slender facelina (Facelina auriculata)

Image: Facelina bostoniensis

 Boston facelina (Facelina bostoniensis)

Image: Fjordia browni

 Scarlet lady (Fjordia browni)

Image: Fjordia lineata

 A sea slug (Fjordia lineata)

Image: Geitodoris planata

 A sea slug (Geitodoris planata)

Image: Gibbula magus

 Turban top shell (Gibbula magus)

Image: Goniodoris nodosa

 A sea slug (Goniodoris nodosa)

Image: Haliotis tuberculata

 Green ormer (Haliotis tuberculata)

Image: Hancockia uncinata missing

 A nudibranch (Hancockia uncinata)

Image: Hero formosa

 A sea slug (Hero formosa)

Image: Janthina janthina missing

 Violet snail (Janthina janthina)

Image: Jorunna tomentosa

 Grey sea slug (Jorunna tomentosa)

Image: Jujubinus striatus

 Grooved top shell (Jujubinus striatus)

Image: Lacuna vincta

 Banded chink shell (Lacuna vincta)

Image: Limacia clavigera

 Orange-clubbed sea slug (Limacia clavigera)

Image: Littorina littorea

 Common periwinkle (Littorina littorea)

Image: Littorina obtusata

 Common flat periwinkle (Littorina obtusata)

Image: Littorina saxatilis

 Rough periwinkle (Littorina saxatilis)

Image: Margarites helicinus

 Pearly top shell (Margarites helicinus)

Image: Melarhaphe neritoides

 Small periwinkle (Melarhaphe neritoides)

Image: Microchlamylla gracilis

 Slender sea slug (Microchlamylla gracilis)

Image: Neptunea antiqua

 Red whelk (Neptunea antiqua)

Image: Nucella lapillus

 Dog whelk (Nucella lapillus)

Image: Ocenebra erinaceus

 Oyster drill (Ocenebra erinaceus)

Image: Okenia elegans

 Yellow skirt slug (Okenia elegans)

Image: Okenia leachii missing

 A sea slug (Okenia leachii)

Image: Onchidella celtica

 Celtic sea slug (Onchidella celtica)

Image: Onchidoris bilamellata

 Dusky doris (Onchidoris bilamellata)

Image: Onchidoris muricata

 Rough doris (Onchidoris muricata)

Image: Otina ovata

 Ear-shaped shell (Otina ovata)

Image: Palio nothus

 A sea slug (Palio nothus)

Image: Paludinella globularis

 Lagoon snail (Paludinella globularis)

Image: Patella depressa

 Black-footed limpet (Patella depressa)

Image: Patella pellucida

 Blue-rayed limpet (Patella pellucida)

Image: Patella ulyssiponensis

 China limpet (Patella ulyssiponensis)

Image: Patella vulgata

 Common limpet (Patella vulgata)

Image: Peringia ulvae missing

 Laver spire shell (Peringia ulvae)

Image: Philine quadripartita

 Lobe shell (Philine quadripartita)

Image: Phorcus lineatus

 Thick top shell (Phorcus lineatus)

Image: Pleurobranchus membranaceus

 A sea slug (Pleurobranchus membranaceus)

Image: Polycera elegans

 Blue spot slug (Polycera elegans)

Image: Polycera faeroensis

 A sea slug (Polycera faeroensis)

Image: Polycera quadrilineata

 Four-striped polycera (Polycera quadrilineata)

Image: Rapana venosa missing

 Veined rapa whelk (Rapana venosa)

Image: Rissoa parva

 Tiny risso snail (Rissoa parva)

Image: Rostanga rubra

 A sea slug (Rostanga rubra)

Image: Runcina coronata

 A sea slug (Runcina coronata)

Image: Simnia patula

 Open simnia (Simnia patula)

Image: Steromphala cineraria

 Grey top shell (Steromphala cineraria)

Image: Steromphala umbilicalis

 Flat top shell (Steromphala umbilicalis)

Image: Tenellia adspersa

 Lagoon sea slug (Tenellia adspersa)

Image: Testudinalia testudinalis

 Common tortoiseshell limpet (Testudinalia testudinalis)

Image: Trapania maculata

 A sea slug (Trapania maculata)

Image: Trapania pallida missing

 A sea slug (Trapania pallida)

Image: Tricolia pullus

 Pheasant shell (Tricolia pullus)

Image: Trinchesia foliata missing

 A sea slug (Trinchesia foliata)

Image: Tritia incrassata

 Thick-lipped dog whelk (Tritia incrassata)

Image: Tritia reticulata

 Netted dog whelk (Tritia reticulata)

Image: Tritonia hombergii

 A sea slug (Tritonia hombergii)

Image: Trivia arctica

 Arctic cowrie (Trivia arctica)

Image: Trivia monacha

 Spotted cowrie (Trivia monacha)

Image: Truncatella subcylindrica

 Looping snail (Truncatella subcylindrica)

Image: Turritellinella tricarinata

 Auger shell (Turritellinella tricarinata)

Image: Urosalpinx cinerea missing

 American oyster drill (Urosalpinx cinerea)

Image: Velutina velutina missing

 Velvet shell (Velutina velutina)

Clams, cockles, mussels, oysters, and scallops (Bivalvia) 70

Image: Abra alba

 White furrow shell (Abra alba)

Image: Abra nitida

 Glossy furrow shell (Abra nitida)

Image: Abra prismatica

 Elongated furrow shell (Abra prismatica)

Image: Acanthocardia aculeata

 Spiny cockle (Acanthocardia aculeata)

Image: Aequipecten opercularis

 Queen scallop (Aequipecten opercularis)

Image: Anomia ephippium

 Saddle oyster (Anomia ephippium)

Image: Arctica islandica

 Icelandic cyprine (Arctica islandica)

Image: Astarte montagui

 Narrow-hinge astarte (Astarte montagui)

Image: Astarte sulcata

 Furrowed astarte (Astarte sulcata)

Image: Atrina fragilis

 Fan mussel (Atrina fragilis)

Image: Barnea candida

 White piddock (Barnea candida)

Image: Callista chione

 Smooth venus (Callista chione)

Image: Cerastoderma edule

 Common cockle (Cerastoderma edule)

Image: Cerastoderma glaucum

 Lagoon cockle (Cerastoderma glaucum)

Image: Chamelea gallina

 Striped venus clam (Chamelea gallina)

Image: Clausinella fasciata

 Banded venus (Clausinella fasciata)

Image: Crassostrea virginica missing

 American oyster (Crassostrea virginica)

Image: Donax vittatus

 Banded wedge shell (Donax vittatus)

Image: Dosinia exoleta

 Rayed Artemis (Dosinia exoleta)

Image: Dosinia lupinus

 Smooth Artemis (Dosinia lupinus)

Image: Ennucula tenuis missing

 Smooth nut clam (Ennucula tenuis)

Image: Ensis ensis

 Common razor shell (Ensis ensis)

Image: Fabulina fabula

 Bean-like tellin (Fabulina fabula)

Image: Glossus humanus missing

 Heart cockle (Glossus humanus)

Image: Glycymeris glycymeris

 Dog cockle (Glycymeris glycymeris)

Image: Goodallia triangularis missing

 Triangular astarte (Goodallia triangularis)

Image: Hiatella arctica

 Wrinkled rock borer (Hiatella arctica)

Image: Kurtiella bidentata missing

 Two-toothed Montagu shell (Kurtiella bidentata)

Image: Lasaea adansoni

 A bivalve mollusc (Lasaea adansoni)

Image: Limaria hians

 Gaping file shell (Limaria hians)

Image: Lucinella divaricata missing

 A bivalve mollusc (Lucinella divaricata)

Image: Macoma balthica

 Baltic tellin (Macoma balthica)

Image: Macomangulus tenuis

 Thin tellin (Macomangulus tenuis)

Image: Magallana gigas

 Pacific oyster (Magallana gigas)

Image: Mercenaria mercenaria

 Hard-shell clam (Mercenaria mercenaria)

Image: Mimachlamys varia missing

 Variegated scallop (Mimachlamys varia)

Image: Modiolus barbatus

 Bearded mussel (Modiolus barbatus)

Image: Modiolus modiolus

 Horse mussel (Modiolus modiolus)

Image: Musculus discors

 Green crenella (Musculus discors)

Image: Musculus subpictus missing

 Marbled crenella (Musculus subpictus)

Image: Mya arenaria

 Sand gaper (Mya arenaria)

Image: Mya truncata

 Blunt gaper (Mya truncata)

Image: Myrtea spinifera

 A bivalve mollusc (Myrtea spinifera)

Image: Mytilus edulis

 Common mussel (Mytilus edulis)

Image: Nucula nitidosa

 Shiny nut clam (Nucula nitidosa)

Image: Nucula sulcata

 Furrowed nut clam (Nucula sulcata)

Image: Ostrea edulis

 Native oyster (Ostrea edulis)

Image: Parvicardium pinnulatum missing

 Oval cockle (Parvicardium pinnulatum)

Image: Pecten maximus

 Great scallop (Pecten maximus)

Image: Petricolaria pholadiformis

 American piddock (Petricolaria pholadiformis)

Image: Phaxas pellucidus

 Transparent razor shell (Phaxas pellucidus)

Image: Pholas dactylus

 Common piddock (Pholas dactylus)

Image: Pseudamussium peslutrae missing

 Seven-rayed scallop (Pseudamussium peslutrae)

Image: Ruditapes decussatus

 Chequered carpet shell (Ruditapes decussatus)

Image: Ruditapes philippinarum

 Manila clam (Ruditapes philippinarum)

Image: Scrobicularia plana

 Peppery furrow shell (Scrobicularia plana)

Image: Spisula elliptica

 Elliptical surf clam (Spisula elliptica)

Image: Spisula solida

 Thick trough shell (Spisula solida)

Image: Spisula solidissima

 Atlantic surf clam (Spisula solidissima)

Image: Talochlamys pusio missing

 Humpback scallop (Talochlamys pusio)

Image: Tellimya ferruginosa

 Rusty Montagu shell (Tellimya ferruginosa)

Image: Teredo navalis missing

 Great shipworm (Teredo navalis)

Image: Thracia convexa

 A bivalve mollusc (Thracia convexa)

Image: Thracia villosiuscula

 A bivalve mollusc (Thracia villosiuscula)

Image: Thyasira gouldii

 Northern hatchet shell (Thyasira gouldii)

Image: Timoclea ovata

 Oval venus (Timoclea ovata)

Image: Varicorbula gibba

 Basket shell (Varicorbula gibba)

Image: Venerupis corrugata missing

 Pullet carpet shell (Venerupis corrugata)

Image: Venus casina missing

 A bivalve mollusc (Venus casina)

Image: Venus verrucosa

 Warty venus (Venus verrucosa)

Cuttlefish, nautilus, octopus & squid (Cephalopoda) 16