MarLIN Gallery

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

<i>Gibbula cineraria</i>, the grey top shell. <i>Gibbula umbilicalis</i>, flat top shell. <i>Helcion pellucidum</i> on kelp blade. <i>Nucella lapillus</i> with black and white stripes.
Collection of <i>Littorina obtusata</i> shells. Three <i>Littorina littorea</i> on intertidal rock with limpets, barnacles and weed. <i>Osilinus lineatus</i> on intertidal rock. Mussel shells displayed on gravel.
Dogwhelk on rock.  Photo taken underwater. Line drawing of <i>Alloteuthis media</i>. Line drawing of <i>Alloteuthis subulata</i>. Line drawing of <i>Bathypolypus arcticus</i>.
Line drawing of <i>Eledone cirrhosa</i>. Line drawing of <i>Illex coindetii</i>. <i>Loligo forbesi</i>. Line drawing of <i>Loligo forbesi</i>.
Line drawing of <i>Loligo vulgaris</i>. <i>Octopus vulgaris</i>. Line drawing of <i>Rossia macrosoma</i>. Individual <i>Sepiola atlantica</i> on gravel.
Line drawing of <i>Sepiola atlantica</i>. Line drawing of <i>Sepia elegans</i>. Two individuals hovering over the sea bed. Two individuals.
Individual burying in gravel. Side view of entire individual. Line drawing of <i>Sepia orbigniana</i>. Line drawing of <i>Sepietta oweniana</i>.
Line drawing of <i>Sepiola rondeletii</i>. Line drawing of <i>Todaropsis eblanae</i>. Line drawing of <i>Truncatella subcylindrica</i>. Adult <i>Atrina fragilis</i> embedded in sea bed.
A view of the upper (right) side of a native oyster attached to pebbles. <i>Caloria elegans</i> from a rocky reef area, Co Antrim. <i>Eledone cirrhosa</i> <i>Eledone cirrhosa</i>, curled octopus.
<i>Greilada elegans</i> on bryozoan. <i>Greilada elegans</i>. <i>Tritonia nilsodhneri</i> and eggs on the sea fan <i>Eunicella verrucosa</i>. The banded chink snail <i>Lacuna vincta</i> on kelp.
Side view of <i>Atrina fragilis</i> in the seabed. <i>Atrina fragilis</i> on the seabed. Side view of <i>Atrina fragilis</i> on log showing scale. <i>Okenia elegans</i>
Three <i>Cerastoderma glaucum</i> with siphons extended. Tortoiseshell limpet, <i>Tectura testudinalis</i>. Six specimens of <i>Caecum armoricum</i>. Post larval juvenile of <i>Caecum armoricum</i>. Whole animal and shell, showing protoconch and operculum.
External view of <i>Thyasira gouldi</i> valve. One juvenile crawling shell and 5 adults of <i>Truncatella subcylindrica</i>. Also one shell of <i>Paludinella litorina</i>. Two adult <i>Truncatella subcylindrica</i>, one crawling. <i>Tenellia adspersa</i>
Front half of adult <i>Caecum armoricum</i>. Two specimens of <i>Caecum armoricum</i>. The smaller specimen has laid down a new septum preparatory to breaking off the empty part of the shell. Three live shells and one empty one of <i>Paludinella littorina</i>. One animal crawling. Eyes showing in centre of lobed tentacles.
Two animals crawling on <i> Zostera</i> and <i>Obelia</i>. <i>Tenellia adspersa</i> crawling on <i>Ruppia</i> with the mollusc <i>Rissoa membranacea</i>. Common tortoiseshell limpet on stones at low water in Scotland. <i>Littorina obtusata</i>.
Three <i>Littorina littorea</i> on rock under water at high tide. Individual removed from burrow. Museum specimens of the spiny cockle. <i>Aplysia punctata</i> (left hand side) with <i>Actinothoe sphyrodeta</i>.
<i>Facelina bostoniensis </i>. <i>Facelina bostoniensis</i>. <i>Coryphella gracilis</i> with spawn. <i>Elysia viridis</i>.
<i>Elysia viridis</i>. <i>Flabellina pellucida</i>. Close up of the tentacles of <i>Limaria hians</i>. <i>Limaria hians</i> and nest.
<i>Limaria hians</i>. <i>Littorina saxatilis</i>, rough periwinkles amongst barnacles, <i>Semibalanus balanoides</i>. Dense clump of mussels with barnacles on individuals. Dense covering of mussels on intertidal rocks.
Dense growth of young mussels with barnacles and two dog whelks. Great scallop, <i>Pecten maximus</i>, and maerl. Two <i>Osilinus lineatus</i> on rock. <i>Mytilus edulis</i>, on a buoy line, feeding.
Great scallop (<i> Pecten maximus</i>) on a gravel bank at the Manacles, southwest Cornwall. <i>Nucella lapillus</i> with egg capsules. The carnivorous snail <i>Simnia patula</i>. The carnivorous snail <i>Simnia patula</i> with its eggs on its prey, <i>Alcyonium digitatum</i>.
Horse mussel bed with hydroids and red seaweed, Linga Sound, Shetland. <i>Patella vulgata</i> on rock. A selection of adult <i>Mya arenaria</i>. <i>Philine aperta</i> on sediment surface.
Group of <i>Philine aperta</i> on the sediment surface. Overhead shot of star shaped depressions left by siphons of <i>Scrobicularia plana</i>.  A number of <i>Scrobicularia plana</i> being dug out of coarse sediment. A razor shell <i>Pharus legumen</i>.
Clump of mussels. A selection of juvenile <i>Mya arenaria</i> about 2-5 mm in length. Characteristic siphon holes of <i>Mya arenaria</i>. <i>Melarhaphe neritoides</i> in high shore crevice.
Chain of <i>Crepidula fornicata</i>. <i>Buccinum undatum</i>. <i>Buccinum undatum</i>. <i>Alloteuthis subulata</i>.
Side view of <i>Alloteuthis subulata</i>. Front view of <i>Alloteuthis subulata</i>. External view of <i>Venerupis senegalensis</i> valve. <i>Mya arenaria</i> close-up when open.
<i>Mya arenaria</i> close-up when open (side view). Foot and underside of <i>Patella ulyssiponensis</i>. <i>Macoma balthica</i>. Specimen of <i>Mya truncata</i>.
<i>Tonicella marmorea</i> Shell of <i>Tricolia pullus</i>. External view of <i>Parvicardium ovale</i> valve. <i>Fabulina fabula</i>.
<i>Tritonia nilsodhneri</i> on <i>Eunicella verrucosa</i>.  <i>Polycera faeroensis</i>, two individuals seen at Lundy. Dog whelks laying eggs between mussel beds. The pearl top shell <i>Margarites helicinus</i>.
Apertural view of <i>Bittium reticulatum</i>. Apertural view of <i>Epitonium clathrus</i>. <i>Ocenebra erinacea</i> with egg capsules. Apertural view of <i>Colus islandicus</i>.
Clump of horse mussels <i>Modiolus modiolus</i> on bedrock. The variegated scallop <i>Chlamys varia</i>. Bed of <i>Crassostrea gigas</i> in the Netherlands. <i>Corbula gibba</i>.
<i>Nucula nitidosa</i> Outer view of <i>Haliotis tuberculata</i>. External view of <i>Tellimya ferruginosa</i> valve. <i>Littorina obtusata</i> on seaweed.
The laver spire shell, <i>Hydrobia ulvae</i>. The laver spire shell <i>Hydrobia ulvae</i>. Distribution map for the razor shell  <i>Ensis siliqua</i>. Distribution map for the razor shell <i>Ensis arcuatus</i>.
Distribution map for <i>Ensis ensis</i>. <i>Astarte sulcata</i>. External view of <i>Spisula elliptica</i> valve. <i>Barnea candida</i> in situ.
The smooth Artemis <i>Dosinia lupinus</i> on a black background. <i>Neptunea antiqua</i>. <i>Corbula gibba</i> shell opened to show ligment and hinge teeth. The Arctic cowrie <i>Trivia arctica</i>.
<i>Calliostoma zizyphinum</i>. Group of <i>Osilinus lineatus</i> on emmersed mid shore rock. External view of <i>Lasaea adansoni</i> valve. Painted top shell
Painted top shell. The great scallop in sediment. External view of <i>Petricola pholadiformis</i> valve. The sea slug <i>Tritonia nilsodhneri</i> with its eggs.
<i>Calliostoma zizyphinum</i> with <i>Corynactis viridis</i> on the Manacles, southwest Cornwall. <i>Nassarius reticulatus</i> with eggs at 40 m depth. <i>Ensis ensis</i>, the razor shell. The thick-lipped dog whelk <i>Nassarius reticulatus</i>.
<i>Hiatella arctica</i>.  Icelandic cyprine, <i>Arctica islandica</i>. Siphons of <i>Mya truncata</i> visible on sediment surface at 19m off Qikiqtarjuag, Canada. View of top valve of <i>Arctica islandica</i>.
The variegated scallop, <i>Chlamys varia</i>. <i>Venus verrucosa</i> <i>Berthella plumula</i>. <i>Buccinum</i> spp. egg mass washed ashore.
<i>Phaxas pellucidus</i>. External view of <i>Thracia convexa</i> valve. The whelk <i>Buccinum undatum </i> laying eggs, late December 2002. Apertural view of <i>Jujubinus striatus</i>.
<i>Musculus discors</i> living in bryozoan turf collected from dead <i>Eunicella verrucosa</i>. Small <i>Tritonia hombergi</i> feeding on dead man's fingers <i>Alcyonium digitatum</i>. Top view of <i>Leptochiton scabridus</i>. Group of horse mussels in sediment.
<i>Margarites helicinus</i> with eggs. <i>Crassostrea gigas</i>, Kingsand. Close up view of aperture. <i>Hero formosa</i> on sediment.
Large specimen of <i>Pholas dactylus</i> from off Mumbles Head. <i>Calyptraea chinensis</i>. <i>Acanthochitona fascicularis</i> Driftwood bored by the shipworm <i>Teredo navalis</i>.
Shell of <i>Velutina velutina</i> from Studland, Dorset. The bearded mussel <i>Modiolus barbatus</i>. <i>Mysella bidentata</i>. Shell of the dog cockle <i>Glycymeris glycymeris</i>.
<i>Turritella communis</i> on sediment. <i>Limacia clavigera</i>. <i>Onchidoris bilamellata</i>. <i>Onchidoris muricata</i>.
<i>Palio nothus</i> on the seabed. <i>Polycera quadrilineata</i>. Two <i>Turritella communis</i> on sediment. External view of <i>Thracia villosiuscula</i> valve.
The celtic sea slug <i>Onchidella celtica</i>. <i>Pecten maximus</i> swimming. <i>Acanthodoris pilosa</i>. <i>Aeolidia papillosa</i>.
<i>Aequipecten opercularis</i> on mixed substrata. <i>Chlamys varia</i>. External view of <i>Chamelea gallina</i> valve. External view of <i>Dosinia exoleta</i> valve.
External view of <i>Ruditapes decussatus</i> valve. External view of <i>Mercenaria mercenaria</i> valve. External view of <i>Ruditapes philippinarum</i> valve. <i>Hiatella arctica</i> in burrow.
External view of <i>Spisula solidissima</i> valve. Chain of slipper limpets on the lower shore. The sea lemon <i>Archidoris pseudoargus</i> in rockpool. Native oyster <i>Ostrea edulis</i> exposed by the tide at Oreston Spit, Plym Estuary.
Native oyster <i>Ostrea edulis</i> in shallow water at Durgon, Itelford River, Cornwall. Edible periwinkle <i>Littorina littorea</i> on sheltered vertical rock at Millport, Firth of Clyde. The limpet <i>Patella depressa</i>. The limpet <i>Tectura testudinalis</i>.
Shell of <i>Cerastoderma edule</i> opened to display hinge. The common cockle <i>Cerastoderma edule</i> on mud surface. <i>Cerithiopsis tubercularis</i>. <i>Lamellaria perspicua</i>.
<i>Ruditapes decussatus</i> in aquarium with siphons extended. <i>Ruditapes decussatus</i> spawning in aquarium. <i>Aporrhais pespelecani</i>. The sea hare <i>Aplysia punctata</i> on leaves of <i>Zostera marina</i>.
<i>Nucula sulcata</i>. The surf clam <i>Spisula solida</i>. <i>Acanthodoris pilosa</i> in laboratory. <i>Acanthodoris pilosa</i> on substratum.
<i>Limacia clavigera</i> on ascidian siphon. <i>Onchidoris bilamellata</i> spawn. Dorsal view of <i>Onchidoris muricata</i>. Two <i>Polycera quadrilineata</i> feeding on <i>Membranipora membranacea</i>.
The spiny cockle <i>Acanthocardia aculeata</i> on mixed sediment. Both valves of the dog cockle <i>Glycymeris glycymeris</i>. <i>Onchidoris</i> spp. <i>Dendronotus frondosus</i> on kelp at Bach Island, Firth of Lorne on the west coast of Scotland.
<i>Facelina auriculata</i> on <i>Ulva lactuca</i>. <i>Pleurobranchus membranaceus</i> at Lyme Bay. <i>Chlamys distorta </i>Humpback Scallop, Oban. External view of <i>Circomphalus casina</i> valve.
The slit limpet <i>Emarginula fissura</i>. <i>Atrina fragilis</i> removed from soft mud in Plymouth Sound. Adapertural (back) view of <i>Euspira catena</i>. The marbled crenella <i>Modiolarca tumida</i>.
Adapertural (back) view of <i>Euspira pulchella</i>. Grouping of <i>Rissoa parva</i> on red seaweed. <i>Atrina fragilis</i> in soft mud in Plymouth Sound. <i>Aeolidiella alderi</i>
<i>Berthella plumula</i> exposed under boulder. <i>Aplysia punctata</i> with string of pink eggs. <i>Acanthochitona crinita</i> in a rock pool. <i>Trivia monacha</i> at Scapa Flow, Orkneys.
The sea slug <i>Armina loveni</i>. <i>Tritonia hombergi</i> with eggs. <i>Abra alba</i>. <i>Aeolidiella sanguinea</i>.
The rare sea slug <i>Trapania maculata</i>. <i>Berthella plumula</i>. The spotted cowrie <i>Trivia monacha</i>. Close up of the Great Scallop <i>Pecten maximus </i> showing the mantle.
<i>Irus irus</i> in rock cavity. <i>Tonicella marmorea</i> <i>Tellina tennis</i> <i>Tellina tenuis</i>
<i>Acesta excavata</i>. Arctic cowrie. <i>Littorina obtusata</i>. <i>Myrtea spinifera</i>.
<i>Crassostrea gigas</i> at Batten Bay, Plymouth Sound. A pair of <i>Aporrhais pespelecani</i> <i>Crassostrea gigas</i> at Firestone Bay, Plymouth Sound. Shell of <i>Chlamys varia</i>.
The sea lemon <i>Archidoris pseudoargus</i>. Mating sea lemons. Spawn of<i> Aeolidia papillosa</i>. Flat, vase-shaped egg capsules of <i>Nassarius reticulatus</i>.
The violet snail <i>Janthina janthina</i> and bubble raft. <i>Janthina janthina</i>. <i>Tritonia hombergi</i>. A pair of mating <i>Onchidella celtica</i>.
Eggs of common cuttlefish on <i>Sargassum muticum</i>. Eggs of the common squid washed up on the shore. <i>Rostanga rubra</i>. Two specimens of <i>Jorunna tomentosa</i> beneath rock overhang.
<i>Geitodoris planata</i>. <i>Runcina coronata</i> in a rockpool. Underside of <i>Ocenebra erinacea</i>. <i>Aequipecten opercularis</i> showing mantle and eyes.
<i>Aeolidiella alderi</i>. <i>Littorina mariae</i>. Spawn of <i>Jorunna tomentosa</i>. A white colour morph of<i> Eubranchia farrani</i>.
Orange and white colour morph of <i>Eubranchus farrani</i> on <i>Obelia</i> sp. attached to kelp. <i>Eubranchus farrani</i> orange and white colour morph on sugar kelp. <i>Eubranchus farrani </i>pale orange/pink colour morph with <i>Obelia</i> sp. on kelp frond. Closer view of <i>Facelina auriculata</i> on <i>Ulva lactuca</i>.
A pair of <i>Eubranchus farrani</i> with hydroid and bryozoan on <i>Ulva lactuca</i>. Spawn of <i>Eubranchus farrani</i>. Spawn of <i>Facelina auriculata</i>. Mud snails <i>Hydrobia</i> sp. on mud surface.
Mud snails <i>Hydrobia</i> sp. on sediment surface. <i>Coryphella browni</i>. Individual <I>Crepidula fornicata</I> on pebble intertidally <i>Onchidella celtica</i>.
External view of <i>Phaxas pellucidus</i> valve. External view of <i>Angulus tenuis</i> valve. Internal view of <i>Angulus tenuis</i> valves. Apical view of <i>Barnea candida</i> protoplax.
Internal view of <i>Barnea candida</i> valve. Apertural view of <i>Bittium simplex</i>. External view of <i>Callista chione</i> valve. Internal view of <i>Callista chione</i> valve.
Side profile of <i>Callista chione</i>. Internal view of <i>Chamelea gallina</i> valve. Internal view of <i>Circomphalus casina</i> valve. Internal view of <i>Circomphalus casina</i> valve.
Apertural view of <i>Circulus striatus</i>. Umbilical view of <i>Circulus striatus</i>. Apical view of <i>Circulus striatus</i>. External view of <i>Clausinella fasciata</i> valve.
Internal view of <i>Clausinella fasciata</i> valve. Side profile of <i>Clausinella fasciata</i>. Internal view of <i>Dosinia exoleta</i> valve. Apertural view of <i>Euspira catena</i>.
Inner view of <i>Haliotis tuberculata</i>. Apertural view of <i>Jordaniella truncatula</i>. Internal view of <i>Mercenaria mercenaria</i> valve. Side view of <i>Mercenaria mercenaria</i> lunule.
<i>Petricola pholadiformis</i> in situ. Internal view of <i>Petricola pholadiformis</i> valve. Apertural view of <i>Euspira pulchella</i>. Internal view of <i>Spisula elliptica</i> valve.
Internal view of <i>Spisula solidissima</i> valve. Internal view of <i>Ruditapes decussatus</i> valve. Internal view of <i>Ruditapes decussatus</i> valve. Side profile of lunule and ligament of <i>Ruditapes philippinarum</i>.
Internal view of <i>Tellimya ferruginosa</i> valves. Internal view of <i>Venerupis senegalensis</i> valve. <i>Doris sticta</i>. <i>Janolus cristatus</i>.
<i>Janolus cristatus</i> on a pontoon. Close up of <i>Janolus cristatus</i> coruncle. <i>Pleurobranchus membranaceus</i> with eggs, Lyme Bay. The oval venus, <i>Timoclea ovata</i>.
<i>Littorina obtusata</i> on <i>Fucus</i> sp. <i>Archidoris pseudoargus</i> feeding on breadcrumb sponge. The egg ribbon of the sea lemon <i>Archidoris pseudoargus</i>. Common keyhole limpet <i>Diodora graeca</i>.
Egg collar of the necklace shell <i>Euspira catena</i>.  Another species (probably the thick-lipped whelk) has attached its own eggs to the underside of the collar. The common piddock <i>Pholas dactylus</i>, South Wales. The shell of the sea slug <i>Akera bullata</i>. Grey top shell and barnacles.
The flat top shell <i>Gibbula umbilicalis</i>. Group of spotted cowries (<i>Trivia monacha</i>) on sponge. <i>Sepiola atlantica</i>, the little cuttlefish, swimming. The bivalve <i>Abra prismatica</i>.
<i>Abra nitida</i>. <i>Acteon tornatilis</i> shell, approximately 1.5 cm. <i>Eubranchus farrani</i> orange and white colour morph. <i>Facelina auriculata</i>.
<i>Jorunna tomentosa</i>, on <i>Ulva lactuca</i> on a marine pontoon. <i>Goniodoris nodosa</i>, found attached to sugar kelp on a pontoon. <i>Crassostrea gigas</i> growing on the side of a marina pontoon. <i>Crassostrea gigas</i> at Jennycliff Bay.
Group of <i>Nucella lapillus</i> and eggs on an overhang (the photograph is upside-down to aid identification). Single <i>Crepidula fornicata</i> on rock overhang. <i>Barnea candida</i> valve. <i>Pinna nobilis</i>, a fan mussel.
The grey sea slug <i>Aeolidia papillosa</i>. The dog whelk <i>Nucella lapillus</i>, highlighting colour variation. <i>Elysia viridis</i> with egg ribbon on <i>Codium</i> spp. <i>Elysia viridis</i> crawling in a rockpool; note the characteristic bright green-blue spots.
The razor shell <i>Ensis siliqua</i>. The razor shell <i>Ensis siliqua</i> showing almost straight sided valves. The siphons of a razor shell. Alder's necklace shell <i>Euspira pulchella</i> with mantle skirt, foot and tentacles clearly visible.
<i>Buccinum undatum</i> crawling on the seabed highlighting shape of foot, tentacles and siphon. Note also the <i>Crepidula fornicata</i> on the shell. Two <i>Buccinum undatum</i> individuals in what appears to be a mating position. <i>Crepidula fornicata</i> growing on the shell of an edible crab illustrating diversity of substrata on which it can grow. <i>Diaphorodoris luteocincta</i> at 36 metres on the wreck of the King Cadwallan, Hard Lewis Rocks, Isles of Scilly.
<i>Coryphella lineata</i> on feeding on <i>Tubularia indivisa</i> at Firestone Bay, Plymouth Sound. <i>Coryphella browni</i> in Lyme Bay, Devon. <i>Geitodoris planata</i> at Scapa Flow, Orkneys. <i>Coryphella browni</i> at the Manacles, southwest Cornwall.
<i>Coryphella browni</i> on the City of Ghent, Manacles, southwest Cornwall. <i>Trivia monacha</i> at Scapa Flow, Orkneys. <i>Trivia arctica</i> at Firestone Bay, Plymouth Sound. <i>Trivia monacha</i> on the Isles of Scilly.
<i>Rostanga rubra</i> at Scapa Flow, Orkneys. A group of <i>Abra alba</i>. <i>Abra nitida</i>. Group of <i>Buccinum undatum</i> illustrating shape of foot, siphon and operculum.
<i>Buccinum undatum</i> egg mass. <i>Calliostoma zizyphinum</i> in Lyme Bay, Devon. <i>Cadlina laevis</i> with encrusting red algae at Doune, Scotland. <i>Coryphella browni</i> on <i>Tubularia</i> spp. in the Channel Isles.
<i>Crimora papillata</i> in the Channel Isles. <i>Haliotis tuberculata</i> in the Channel Isles. An empty <i>Haliotis tuberculata</i> shell in the Channel Isles. <i>Aplysia punctata</i> on sandy gravel in the Channel Isles.
<i>Simnia patula</i> on <i>Eunicella verrucosa</i> at Lundy. The sea slug <i>Adalaria proxima</i>. <i>Dendronotus frondosus</i> from the north coast of Bernera Island, Lismore on the west coast of Scotland. <i>Aplysia punctata</i> in a rockpool at Batten Bay, Plymouth.
<i>Aplysia punctata</i> showing eye. <i>Chlamys varia</i> valve. The Faroe sunset shell <i>Gari fervensis</i>. <i>Coryphella browni</i> surrounded by jewel anemones.
The common / edible winkle <i>Littorina littorea</i>. Common flat periwinkle on <i>Fucus serratus</i>. The pullet carpet shell. <i>Venerupis senegalensis</i> partly burried in muddy gravel.
<i>Aeolidiella alderi</i> showing rhinophore and tentacle detail. Pair of blue-rayed limpets on kelp. <i>Atrina fragilis</i> at low tide, Salcombe. The 'toothed' topshell.
Small periwinkles. <i>Polinices polianus</i>. <i>Turritella communis</i> shell on seabed. Pink cuttlefish bone.
Elegant cuttlefish bones. <i>Polycera faeroensis</i> with distinctive yellow markings. The translucent quality of a <i>Polycera faeroensis</i>. <i>Facelina auriculata</i> at Mayflower Marina.
A <i>Facelina auriculata</i> with long oral tentacles. <i>Jorunna tomentosa</i> on <i>Ulva lactuca</i>. <i>Trivia monacha</i> with distinctive yellow mantle. <i>Atrina fragilis</i> in muddy gravel, Ireland.
<i>Alloteuthis subulata</i> egg mass. Open empty shell of <i>Donax vittatus</i>. <i>Astarte elliptica</i> <i>Astarte montagui</i>.
<i>Corbula gibba</i>. <i>Nucula minuta</i>. <i>Nucula nucleus</i>. <i>Nucula tumidula</i>.
<i>Antalis spp</i>. The topshell <i>Gibbula umbilicalis</i> amongst dog whelks. The topshell <i>Gibbula umbilicalis</i> upturned on a rock. The topshell <i>Gibbula umbilicalis</i> upturned on a rock showing its operculum.
<i>Helcion pellucidum</i> on a blade of kelp. <i>Lepidochitona cinerea</i>. <i>Osilinus lineatus</i> on a barnacle covered rock. <i>Osilinus lineatus</i> upturned on a rock.
<i>Otina ovata</i> on a rock covered by the barnacle <i>Semibalanus balanoides</i>. A gathering of <i>Patella vulgata</i>. <i>Trivia monacha</i> grouped together in a crevice. <i>Aporrhais pespelecani</i> on a green background.
<i>Arctica islandica</i> on a black background. <i>Astarte sulcata</i> on a green background. <i>Chamelea gallina</i> on a black background. <i>Corbula gibba</i> on a black background.
Shell of <i>Cylichna cylindracea</i> on a black background. <i>Fabulina fabula</i> on a black background. <i>Hydrobia ulvae</i> on a black background. <i>Laevicardium crassum</i> on a black background.
<i>Mysella bidentata</i> on a black background. <i>Nucula nitidosa</i> on a black background. <i>Oenopota turricula</i> on a black background. <i>Euspira pulchella</i> on a black background.
<i>Polycera quadrilineata</i> on a black background. Close up of the head of <i>Rossia macrosoma</i>. Close up of the head and tentacles of <i>Rossia macrosoma</i>. <i>Rossia macrosoma</i> on a black background.
<i>Sepiola atlantica</i> on a green background. Head region of <i>Sepiola atlantica</i>. Highly pigmented <i>Sepiola atlantica</i>. <i>Spisula subtruncata</i> on a black background.
<i>Tellimya ferruginosa</i> on a black background. <i>Thyasira flexuosa</i> on a black background. <i>Venus verrucosa</i> in a laboratory. <i>Eledone cirrhosa</i> juvenile.
Pair of <i>Euspira pulchella</i>. <i>Phaxas pellucidus</i> on a black background. <i>Tritonia hombergi</i> amongst brittle stars. <i>Acanthodoris pilosa</i> in the Scilly Isles.
Close up view of <i>Acanthodoris pilosa</i>. <i>Cadlina laevis</i> in the Scilly Isles. Pair of <i>Diaphorodoris luteocincta</i>. Bright pink <i>Flabellina pedata</i>.
<i>Tritonia nilsodhneri</i> on a sea fan. Close up view of <i>Tritonia nilsodhneri</i> on a sea fan. Close up view of <i>Pecten maximus</i>. <i>Aporrhais pespelecani</i> shell lying on some sand.
<i>Crassostrea gigas</i> on a dark, barnacle covered rock. <i>Crepidula fornicata</i> at Oreston Spit. Dark eggs of <i>Sepia officinalis</i>. Mottled <i>Eledone cirrhosa</i> near the seabed.
Dirty <i>Gibbula magus</i> on the seabed. <i>Helcion pellucidum</i> on <i>Laminaria ochroleuca</i>. <i>Limaria hians</i> hidden within a nest. <i>Littorina littorea</i> in a rock crevice.
Young <i>Littorina obtusata</i> with a distinctly banded shell. <i>Mytilus edulis</i> covered in barnacles - close up. <i>Mytilus edulis</i> covered in barnacles. Bright pink <i>Nassarius incrassatus</i>.
Four brownish <i>Nassarius incrassatus</i> individuals. <i>Pecten maximus</i> shells. <i>Pecten maximus</i> shells. <i>Simnia patula</i> on <i>Alcyonium digitatum</i>.
<i>Tectura testudinalis</i> on a rock. <i>Tectura testudinalis</i> on a barnacle covered rock. <i>Turritella communis</i> shell lying in sand. Lone <i>Calliostoma zizyphinum</i> at Firestone.
Lone <i>Calliostoma zizyphinum</i> at Lundy. <i>Trivia arctica</i> in the intertidal. <i>Osilinus lineatus</i> on a rock. <i>Helcion pellucidum</i> on some kelp.
Multiple <i>Glycymeris glycymeris</i> shells on the seabed. <i>Tritonia hombergi</i> at Morris Rogue reef near Torbay, at 12 m depth. <i>Tritonia hombergi</i> at Tucker Rock near Torbay, at 13 m depth. Sea slug egg mass, probably of <i>Tritonia hombergi</i>.
Curled up <i>Palio nothus</i>. Adult <i>Alloteuthis subulata</i> in a laboratory tank. Juvenile <i>Alloteuthis subulata</i> in a laboratory tank. <i>Alloteuthis subulata</i> eggs in a laboratory tank.
Adult <i>Allotheuthis sp.</i> . <i>Eledone cirrhosa</i> scrambling up a rock in a laboratory. <i>Eledone cirrhosa</i> against the glass of a laboratory tank. Newly born <i>Eledone cirrhosa</i>.
<i>Sepia officinalis</i> squirting ink. <i>Sepia officinalis</i> with its eggs. Female <i>Sepia officinalis</i> in a laboratory. <i>Sepia officinalis</i> juveniles bred in a laboratory.
Head of <i>Sepia officinalis</i> with its eggs. Detached eggs of <i>Sepia officinalis</i> at different growth stages. Eggs of <i>Loligo vulgaris</i> in a laboratory. <i>Aplysia punctata</i> in a laboratory.
<i>Aplysia punctata</i> eggs in a laboratory. <i>Archidoris pseudoargus</i> eggs in a laboratory tank. Close up view of <i>Archidoris pseudoargus</i> eggs in a laboratory tank. Yellow eggs of <i>Archidoris pseudoargus</i>.
Lemon-peel like eggs of <i>Archidoris pseudoargus</i>. <i>Coryphella browni</i> in the Scilly Isles. Close up view of <i>Coryphella browni</i>. <i>Coryphella browni</i> swimming up from the seabed.
Multiple <i>Coryphella browni</i>. <i>Eubranchus farrani</i> against a black background. <i>Helcion pellucidum</i> in Doune. Mating couple of <i>Polycera faeroensis</i>.
<i>Polycera quadrilineata</i> against a black background. <i>Sepia officinalis</i> lying on a cobble seabed. Pair of <i>Sepia officinalis</i> hovering over the seabed. <i>Simnia patula</i> on its prey - close up view.
<i>Simnia patula</i> on its prey. <i>Pecten maximus</i> in Doune. An orange <i>Archidoris pseudoargus</i> specimen. A pale <i>Archidoris pseudoargus</i> at low tide.
<i>Acteon tornatilis</i> on Aberavon beach. <i>Acteon tornatilis</i> and burrow on Aberavon beach. <i>Aplysia punctata</i> eggs on <i>Dilsea carnosa</i>. <i>Aplysia punctata</i> under a boulder.
<i>Calliostoma zizyphinum</i> on a rock amongst barnacles and limpets. <i>Crassostrea gigas</i> on open rock. <i>Diodora graeca</i> feeding on a sponge on the side of a rock. Four <i>Helcion pellucidum</i> individuals on kelp.
<i>Limacia clavigera</i> in a rockpool. <i>Trivia monacha</i> in a rockpool. <i>Cerastoderma edule</i> on a black background. <i>Ensis siliqua</i> shell on a dark background.
<i>Phaxas pellucidus</i> lying on top of a sandy shore. Tip of <i>Phaxas pellucidus</i> showing out of its burrow. <i>Phaxas pellucidus</i> protruding from its burrow. Underside of <i>Gibbula umbilicalis</i> showing the operculum.
Three mature <i>Gibbula umbilicalis</i> individuals. Lone <i>Gibbula umbilicalis</i> on a rock. Varying forms of <i>Gibbula umbilicalis</i> - view 1. Varying forms of <i>Gibbula umbilicalis</i> - view 2.
Underside of <i>Haliotis tuberculata</i> shell. <i>Helcion pellucidum</i> on kelp showing its grazing trails. <i>Helcion pellucidum</i> on some damaged kelp. <i>Lepidochitona cinerea</i> on a rocky shore.
<i>Littorina littorea</i> showing its withdrawn operculum. Eggs of <i>Littorina obtusata</i>. Lone <i>Littorina saxatilis</i> individual on a boulder. Lone upturned <i>Littorina saxatilis</i> individual on a boulder
<i>Littorina saxatilis</i> individuals in the gap between two rocks. Bright orange <i>Nucella lapilus</i>. Close up view of <i>Nucella lapilus</i> and their eggs. <i>Nucella lapilus</i> under an overhang.
<i>Nucella lapilus</i> on a rock. Brown and white striped juvenile <i>Nucella lapilus</i>. <i>Osilinus lineatus</i> on a barnacle covered rock. Dull-coloured <i>Osilinus lineatus</i> on a rocky shore.
<i>Patella depressa</i> with a greenish tint. <i>Sepia officinalis</i> bone. <i>Turritella communis</i> shell on a black background. <i>Tonicella rubra</i> on a rocky shore.
<i>Patella vulgata</i> showing its muscular foot while being grasped by a dog whelk. Long dead <i>Aequipecten opercularis</i> shell viewed from outside. Long dead <i>Aequipecten opercularis</i> shell viewed from inside. <i>Buccinum undatum</i> shell against a blue background.
Lone <i>Littorina littorea</i> viewed from above. Four <i>Patella vulgata</i> individuals. <i>Tellimya ferruginosa</i> in a laboratory. Hanging eggs of <i>Loligo spp.</i>.
<i>Acanthochitona fascicularis</i> on an intertidal rock. <i>Aeolidia papillosa</i> and its egg mass. <i>Bittium reticulatum</i> shells on the seashore. Lone <i>Cingula trifasciata</i> on the seashore.
Brown nudibranch <i>Hancockia uncinata</i>. White shell <i>Janthina pallida</i> on a sandy substrate. Underside of empty <i>Janthina pallida</i> shell. <i>Lamellaria perspicua</i> left exposed as the tide ebbs.
<i>Auriculinella bidentata</i> grazing at low tide. Dense group of <i>Mytilus edulis</i> in the sunlight. <i>Paludinella littorina</i> on exposed red seaweed. The buoyancy organ of <i>Spirula spirula</i>.
Close up view of <i>Truncatella subcylindrica</i> shell on a rocky shore. <i>Velutina velutina</i> shell on a sandy substrate. Underneath of an empty <i>Velutina velutina</i> shell. A mating chain of <i>Aplysia punctata</i> in 14°C water.
Egg mass from <i>Aplysia punctata</i> in 14°C water. An active sea slug, <i>Berthella plumula</i>. Empty shell of the cowrie <i>Trivia monacha</i>. Sea slug <i>Tritonia nilsodhneri</i> on sea fan <i>Eunicella verrucosa</i>.
Closeup of <i>Polycera faeroensis</i>. The sea slug <i>Acanthodoris pilosa</i>. The lobe shell <i>Philine aperta</i> in sandy substrate. The lobe shell <i>Philine aperta</i>, partly buried in sand.
<i>Lacuna vincta</i> <i>Lacuna vincta</i> Upper shell of saddle oyster found at low tide. Intertidal saddle oyster
Interior of saddle oyster shell halves Chinamans hat snail attached to intertidal vegetation Spire of Chinamans hat shell, found on beach Aperture of Chinamans hat shell, found on beach
An intertidal feeding <i>Cerithiopsis tubercularis</i> An intertidal feeding <i>Cerithiopsis tubercularis</i> Outer left and right shell halves of the Humpback scallop Outer and inner surfaces of both shell halves of Humpback scallop
Shell half of humpback scallop on beach Shell half of humpback scallop Assortment of humpback scallop shells found on a beach Shell half of the banded wedge shell
Assorted colours and shapes of banded wedge shells Inside of shell half of the banded wedge shell Shell half of the banded wedge shell Small periwinkles in a crevice on a rocky intertidal shore
Small periwinkles in a crevice on a rocky intertidal shore A small periwinkle on a rocky intertidal shore A small periwinkle on a rocky intertidal shore The aperture and foot of a small periwinkle on a rocky intertidal shore
The bearded horse mussel on a rocky intertidal shore Netted dog whelk on intertidal rock Shell of the netted dog whelk Aperture of the netted dog whelk
Shell of the netted dog whelk Egg cases of netted dog whelk on intertidal rock Egg case of netted dog whelk showing individual eggs inside Live oyster drill
Live oyster drill Two oyster drills with cluster of egg sacs Egg sacs containing eggs of oyster drills Aperture and ventral side of oyster drill shell
Right side of oyster drill shell Shell of the china limpet on rocky shore Inside of china limpet shell with animal removed Inside of china limpet shell showing foot and mouth
Barnacle-covered shell of the china limpet on rocky shore Aperture and spire of the common spire shell Right side of common spire shell One valve of the peppery furrow shell
Interior of one valve of the peppery furrow shell Closeup of the hinge of one valve of the peppery furrow shell Three pheasant shells, showing diversity in colour Aperture and ventral side of pheasant shell
Right side of pheasant shell The saddle oyster <i>Anomia ephippium</i>, showing the mantle edge of the left valve. The saddle oyster <i>Anomia ephippium</i>, showing the mantle edge of the left valve. The nudibranch <i>Ancula gibbosa</i>, with dorsal gills.
Anterior view of <i>Ancula gibbosa</i>, with dorsal gill tuft. Dorsal surface of <i>Ancula gibbosa</i>, with anterior rhinophores visible on the left. A swarm of Netted dog whelks feeding on a dead spider crab. A mobile Netted dog whelk displaying siphon and tentacles.
<i>Facelina bostoniensis</i> in a shallow pool. <i>Onchidoris bilamellata</i> in fucoid zone. <i>Akera bullata</i> attached to <i>Zostera</i> stem <i>Aeolidia papillosa</i>
Macro image of the <i>Coryphella browni</i> nudibranch.  A <i>Coryphella browni</i> nudibranch on a rock. A macro image of <i>Aeolidia papillosa</i> at Wembury pools A front view of the yellow skirt slug
<i>Crimora papillata</i> on an encrusting sponge <i>Doris sticta</i> on the sea floor <i>Aplysia punctata</i> rearing up from the seabed. <i>Haliotis tuberculata</i>
<i>Facelina auriculata</i> on <i>Laminaria</i>. <i>Polycera faeroensis</i> on red algae <i>Tectura testudinalis</i> <i>Onchidella celtica</i>
<i>Onchidella celtica</i> besides a limpet and barnacles. <i>Tritonia hombergi</i> on rocky substrate. Macro image of <i>Acanthochitona crinita</i>. A <i>Cuthona nana</i> sea slug feeding on hydroids.
A hiding cuttlefish. <i>Cingula triasciata</i> on the sea bed. Two <i>Sagartiogeton undatus</i> anemones adjacent to bivalve siphons. Two <i>Sagartiogeton undatus</i> anemones adjacent to bivalve siphons.
A feeding <i>Janolus cristatus</i> sea slug. Detail of head and rhinophores of <i>Aeolidia papillosa</i>. A group of <i>Onchidoris bilamellata</i>. <i>Onchidoris bilamellata</i> on muddy silt substratum.
An <i>Onchidoris bilamellata</i> aggregation. An <i>Onchidoris bilamellata</i> aggregation. A resting queen scallop. A resting queen scallop.
A group of black-lined periwinkles (<i>Littorina saxatalis var. nigrolineata</i>]. A common cuttlefish in mid-water. <i>Berthella plumula</i> on <i>Spirorbis</i> covered rock. <i>Berthella plumula</i>.
An orange-clubbed sea slug. Two <i>Cuthona concina</i> sea slugs. <i>Archidoris pseudoargus</i> Well camouflaged juvenile cuttlefish (<i>Sepia officinalis</i>)
<i>Nassarius reticulatus</i> on gravel. <i>Lamellaria perspicua</i> <i>Tritonia nilsodhneri</i> A pair of <i>Aplysia punctata</i>
<i>Jorunna tomentosa</i> <i>Nassarius reticulatus</i> egg cases on eel grass. <i>Pandora albida</i> <i>Psuedochama gryphina</i> (exterior).
<i>Psuedochama gryphina</i> (interior). <i>Lacuna parva</i> <i>Lacuna parva</i> Juvenile <i>Sepia officinalis</i>
<i>Crassostrea gigas</i> (with diver) <i>Pecten maximus</i> in front of eelgrass <i>Buccinum undatum</i> <i>Sepiola atlantica</i>
<i>Simnia patula</i> on white sea fan Three spawning <i>Buccinum undatum</i> with Sea Loch anemones Grey top shell <i>Gibbula cineraria</i> showing operculum Front view of <i>Sepia elegans</i>
Side view of <i>Sepia elegans</i> Brown and white striped <i>Nucella lapillus</i> on barnacles