MarLIN Gallery

Sea anemones, corals, sea firs and jellyfish (Cnidaria) gallery

Entire Actinia fragacea with tentacles retracted. Copyright Keith Hiscock	Entire individual with other smaller anemones around. Copyright Sue Daly	Group of Anemonia viridis at Firestone Bay in Plymouth Sound. Copyright Keith Hiscock	Two individuals of Cereus pedunculatus. Copyright Keith Hiscock
Clumps of Dynamena pumila growing amongst holdfasts. Copyright Keith Hiscock	Anemone viridis amongst Dilsea carnosa at Porthkerris, Cornwall. Copyright Fiona Crouch	Line drawing of Thieliana navis. Copyright R.S.K. Barnes	Small sea fan at the Mewstone, Plymouth. Copyright Keith Hiscock
Leptopsammia pruvoti. Copyright Sue Scott	Oral view of Leptopsammia pruvoti. Copyright Keith Hiscock	Eunicella verrucosa on the wreck of the Persier, south Devon. Copyright Keith Hiscock	Metridium senile. Copyright Keith Hiscock
Pink and white Metridium senile. Copyright Keith Hiscock	Metridium senile in Scapa Flow, Orkneys. Copyright Robert Keen	Metridium senile. Copyright Keith Hiscock	Parazoanthus anguicomus. Copyright Keith Hiscock
Individual with out-stretched tentacles. Copyright Joint Nature Conservation Committee	Group of individuals. Copyright Joint Nature Conservation Committee	A group of sea fans. Copyright Joint Nature Conservation Committee	Arachnanthus sarsi with tentacles outstretched. Copyright Joint Nature Conservation Committee
Funiculina quadrangularis, tall sea pen. Copyright Joint Nature Conservation Committee	Gymnangium montagui. Copyright Keith Hiscock	Isozoanthus sulcatus colony in typical habitat of silty rock. Copyright Keith Hiscock	Leptopsammia pruvoti in the Channel Isles. Copyright Sue Daly
Mesacmaea mitchelli in muddy gravel. Copyright Keith Hiscock	Sagartia elegans var. nivea in Lyme Bay, Devon. Copyright Robert Keen	Two fans of Eunicella verrucosa showing the two morphs, pink and white. Copyright Keith Hiscock	Actinia fragacea with tentacles outstretched. Copyright Sue Scott
Dense bed of Alcyonium digitatum. Copyright Sue Scott	Alcyonium digitatum - close-up of polyps. Copyright Sue Scott	Colonies of brown Alcyonium digitatum with polyps withdrawn. Copyright Sue Scott	Tentacles of Anemonia viridis. Copyright Sue Scott
Capnea sanguinea (red) amongst pebbles and brittlestars. Copyright Sue Scott	Oral view of Capnea sanguinea amongst gravel. Copyright Sue Scott	Capnea sanguinea. Copyright Keith Hiscock	Mass of Aurelia aurita scyphistomae (polypoid larvae) on a rock overhang. Copyright Sue Scott
Alcyonium glomeratum on the Manacles, southwest Cornwall. Copyright Robert Keen	Protanthea simplex. Copyright Sue Scott	Protanthea simplex at Stome Narrows in Loch Carron, Scotland. Copyright Keith Hiscock	Nemertesia ramosa. Copyright Keith Hiscock
Nematostella vectensis, one individual removed from the substratum. Copyright Dennis R. Seaward	Individual photographed in Trondheim Fjord, Norway. Copyright Keith Hiscock	Aurelia aurita medusoid adult amongst Ascophyllum nodosum. Copyright Sue Scott	Devonshire cup coral, Caryophyllia smithii at Strome Narrows, Loch Carron, Scotland. Copyright Keith Hiscock
Devonshire cup coral, Caryophyllia smithii. Copyright Sue Scott	Close up of green and orange Corynactis viridis in the Channel Isles. Copyright Sue Daly	Close up view of Corynactis viridis at Firestone Bay in Plymouth Sound. Copyright Keith Hiscock	Close up of Corynactis viridis at Firestone Bay in Plymouth Sound. Copyright Keith Hiscock
Group of Tubularia indivisa on rock, St Kilda. Copyright Sue Scott	A fireworks anemone Pachycerianthus multiplicatus from Loch Duich Head with tentacles outstretched. Copyright Sue Scott	Peachia cylindrica anemone and maerl. Copyright Sue Scott	Five Balanophyllia (Balanophyllia) regia on rock. Copyright Keith Hiscock
Aquarium photograph of colonies with gonothecae. Copyright Keith Hiscock	Colony with feeding nudibranchs. Copyright Keith Hiscock	The polyps of dead man's fingers Alcyonium digitatum. Copyright Keith Hiscock	Close up of Alcyonium glomeratum expanded polyps at Hand Deeps, Plymouth. Copyright Keith Hiscock
White Actinothoe sphyrodeta at Firestone Bay, Plymouth Sound. Copyright Keith Hiscock	Caryophyllia smithii on the wreck of the Rosehill, south Devon. Copyright Keith Hiscock	Mesacmaea mitchelli in muddy sand at ca 8 m below chart datum Copyright Keith Hiscock	Daisy anemones in sediment Copyright Keith Hiscock
Cerianthus lloydii. Copyright Keith Hiscock	Amphianthus dohrnii polyps on branches of sea fan. Copyright Chris Wood	Plumes of Gymnangium montagui Copyright Sue Daly	Group of sea fan anemones on Eunicella verrucosa. Copyright Keith Hiscock
Sea fan anemone on Eunicella verrucosa. Copyright Keith Hiscock	Leptopsammia pruvoti eggs / larvae at water surface in aquarium. Copyright Keith Hiscock	Urticina felina. Copyright Sue Scott	Urticina felina. Copyright Sue Scott
Urticina felina column showing verrucae. Copyright Sue Scott	Stem and polyps of Virgularia mirabilis. Copyright Sue Scott	Sea pens, Virgularia mirabilis extending from muddy sediment. Copyright Sue Scott	Virgularia mirabilis embedded in sediment. Copyright Sue Scott
Cordylophora caspia colony present on rocky overhang. Copyright Keith Hiscock	Close up of large branching Hartlaubella gelatinosa. Copyright Keith Hiscock	Cordylophora caspia colony present under an overhang. Copyright Keith Hiscock	Virgularia mirabilis embedded in sediment; 5 colonies shown. Copyright JNCC
A few Caryophyllia inornata on rock surface. Copyright JNCC	Illuminated image of Clava multicornis. Copyright JNCC	A number of Funiculina quadrangularis embedded in sediment Copyright JNCC	Underwater, close-up view of Cordylophora caspia. Copyright Keith Hiscock
Two anemones on Buccinum shell. Aquarium photograph. Copyright Keith Hiscock	The bottlebrush hydroid Thuiaria thuja on rock. Copyright Joint Nature Conservation Committee	The gem anemone, Aulactinia verrucosa, in south west Guernsey. Copyright Richard Lord	Scarlet and gold star coral at Thorn Rock, Skomer. Copyright Keith Hiscock
Anthopleura thallia in a shallow rockpool. Copyright Keith Hiscock	Dense Anthopleura thallia in a sandy rockpool. Copyright Keith Hiscock	Red sea fingers. Copyright Keith Hiscock	Typical group of the solitary coral Leptopsammia pruvoti. Copyright Keith Hiscock
Cluster of Parazoanthus axinellae polyps. Copyright Keith Hiscock	Close-up image of expanded strawberry anemone, Actinia fragacea. Copyright Dave Peake	Alcyonium hibernicum with a diameter of 6 cm, at Knoll Pins on Lundy Island. Copyright Keith Hiscock	Small colony of Alcyonium hibernicum on cave wall. Copyright Keith Hiscock
A variety of Anthopleura ballii with a green disc and tentacles, showing speckled column. Copyright Keith Hiscock	Cerianthus lloydii. Copyright Keith Hiscock	A colony of Aiptasia mutabilis. Copyright Keith Hiscock	Anthopleura ballii on sediment covered rock. Copyright Keith Hiscock
Aquarium photograph of Adamsia carciniopados on Pagurus prideaux. Copyright Keith Hiscock	Arachnactis larva of Cerianthus lloydii from the plankton. Copyright Paul Tranter	Young attached to column of adult Epiactis prolifera. Copyright Paul Tranter	Peachia cylindrica larvae. Copyright Marine Biological Association of the UK
Peachia cylindrica Copyright Keith Hiscock	The gem anemone, Aulactinia verrucosa, of the west coast of Guernsey. Copyright Richard Lord	By-the-wind-sailor, Velella velella. Copyright Steve Trewhella	Corynactis viridis at Doune, Scotland. Copyright Fiona Crouch
Lumen of Sagartia troglodytes tentacle showing developing young. Copyright Marine Biological Association of the UK	Aglaophenia kirchenpaueri on a subtidal rock. Copyright Paul Newland	Eunicella verrucosa. Copyright Keith Hiscock	The zoanthid sea anemone Epizoanthus couchii. Copyright Keith Hiscock
Adult Aulactinia verrucosa with juvenile. Copyright Keith Hiscock	Pair of Hormathia coronata individuals on a mixed substratum. Copyright Lin Baldock	The worm anemone Scolanthus callimorphus. Copyright Marco Faasse	Sea fir Halicium halecinum and feather star Antedon bifida. Copyright Keith Hiscock
Oaten pipes hydroid. Copyright Keith Hiscock	The plumose hydroid Kirchenpaueria pinnata. Copyright Keith Hiscock	Closed and open gem anemones. Copyright Richard Lord	Plumose anemone on a cable. Copyright Keith Hiscock
Necrotic Eunicella verrucosa. Copyright Keith Hiscock	Caryopolyllia Copyright Keith Hiscock	Corynactis viridis. Copyright Keith Hiscock	Urticina felina. Copyright Keith Hiscock
Urticina felina Copyright Keith Hiscock	Cereus pedunculatus. Copyright Keith Hiscock	Sagartia elegans var. nivia with encrusting an sponge on Hat Rock, Plymouth . Copyright Robert Keen	Hydractinia echinata on the carapace of a hermit crab. Copyright Keith Hiscock
Edwardsiella carnea. Copyright Marine Biological Association of the UK	Adamsia carciniopados on hermit crab. Copyright Keith Hiscock	Cerianthus lloydii. Copyright Keith Hiscock	Laomedea angulata on seagrass. Copyright Keith Hiscock
Obelia dichotoma on side of rock. Copyright SNH	Plumularia setacea. Copyright Steve Trewhella	A sea anemone Sagartiogeton laceratus. Copyright Paul Naylor	The fireworks anemone Pachycerianthus multiplicatus with tentacles outstretched. Copyright Keith Hiscock
Pennatula phosphorea and Turritella communis in muddy sediment. Copyright Joint Nature Conservation Committee	Close up of Eunicella verrucosa with polyps extended at Hand Deeps, Plymouth. Copyright Keith Hiscock	Polyps of the cold-water coral Lophelia pertusa. Copyright Murray Roberts	The tall sea pen Funiculina quadrangularis at 20 m depth in Loch Duich. Copyright Keith Hiscock
Diver and the tall sea pen Funiculina quadrangularis at ca 20 m depth in Loch Duich Copyright Keith Hiscock	White creeping anemone Parazoanthus anguicomus on rock. Copyright Keith Hiscock	Aquarium photograph of individual from Firestone Bay, Plymouth Sound. Copyright Keith Hiscock	Aiptasia mutabilis at Knoll Pins, Lundy Island. Copyright Keith Hiscock
$<i>Balanophyllia (Balanophyllia) regia</i>, Ilfracombe.$ Balanophyllia (Balanophyllia) regia, Ilfracombe. Copyright Keith Hiscock	Velella velella washed ashore. Copyright Keith Hiscock	Velella velella stranded on the shore. Copyright Keith Hiscock	Velella velella being washed ashore. Copyright Keith Hiscock
Colony Hoplangia durotrix on the Wreck of the Rosehill at 24 meters depth below chart datum. Copyright Keith Hiscock	Colonies of the Weymouth carpet coral Hoplangia durotrix in a gulley, Southampton. Copyright Keith Hiscock	Dead Velella velella washed up on shore. Copyright Steve Trewhella	Skeleton of a small colony of Lophelia pertusa. Copyright Dan Lear
Close up of the skeletal framework of a Lophelia pertusa colony. Copyright Dan Lear	Close up the skeletal cups (corallites) of Lophelia pertusa. Copyright Dan Lear	Sunset cup coral Leptopsammia pruvoti group on vertical rock below overhang at the Knoll Pins, Lundy. Copyright Keith Hiscock	Group of sunset cup corals Leptopsammia pruvoti on vertical rock at depth 30 m, Plymouth Sound old cliff-line. Copyright Keith Hiscock
Sunset cup coral Leptopsammia pruvoti on vertical rock on submerged cliff-line offshore of Plymouth Sound. Copyright Keith Hiscock	The bottlebrush hydroid Thuiaria thuja. Copyright Chris Wood	White dead man's fingers, Mew Stone, Plymouth Sound. Copyright Keith Hiscock	Close up of Sagartia elegans. Copyright Sue Scott
Chrysaora hysoscella. Copyright Keith Hiscock	Rhizostoma pulmo at waters surface. Copyright Scottish Association for Marine Science	Rhizostoma pulmo. Copyright Keith Hiscock	Cyanea lamarckii. Copyright Keith Hiscock
Diadumene cincta. Copyright Marco Faasse	The stalked jellyfish Haliclystus octoradiatus. Copyright Marco Faasse	Actinia fragacea in rock pool. Copyright Judith Oakley	Cataphellia brodricii. Copyright Marco Faasse
Halcampoides elongatus at Knoll Pins, Lundy Island. Copyright Keith Hiscock	Necrotic example of Eunicella verrucosa at the Mewstone, Plymouth. Copyright Keith Hiscock	Cyanea capillata at the Isle of Man. Copyright Tim Nicholson	Cyanea lamarckii Copyright Keith Hiscock
Dead remains of Physalia physalis washed up on a beach. Copyright Keith Hiscock	Lucernariopsis campanulata. Copyright Keith Hiscock	Pelagia noctiluca, North Rat Island, Lundy. Copyright Keith Hiscock	Medusa of Aequorea forskalea. Copyright Paul Naylor
Staurostoma mertensi. Copyright Paul Naylor	Cyanea capillata off the Isle of Man. Copyright Tim Nicholson	Cyanea capillata off the Isle of Man. Copyright Tim Nicholson	Thieliana navis on Ruppia, Goesse Meer, The Netherlands. Copyright Marco Faasse
Cyanea lamarkii stranded in rockpool. Copyright Judith Oakley	Actinia equina showing blue acrorhagi. Copyright Judith Oakley	Anemonia viridis attached to eelgrass. Copyright Jack Sewell	Colony of Lophelia pertusa from Mingulay Reef complex. Copyright Murray Roberts
The medusa of Aequorea forskalea. Copyright Steve Trewhella	Diadumene cincta. Copyright Steve Trewhella	Anthopleura ballii. Copyright Mark Thomas	Snakelocks anemone in rockpool. Copyright Charlotte Marshall
The dahlia anemone Urticina felina fully retracted. Column showing characteristic warts (verrucae) and adherent debris. Copyright Paul Newland	Brilliant red Actinia equina. Copyright Peter Barfield	The beadlet anemone Actinia equina with characteristic blue acrorhagi. Copyright Peter Barfield	Anemonia viridis. Copyright Peter Barfield
The kaleidoscope jellyfish Haliclystus auricula. Copyright Marco Faasse	The blue jellyfish Cyanea lamarckii. Copyright Steve Trewhella	Lone Halcampa chrysanthellum on the seabed. Copyright Lin Baldock	Actinauge richardi specimen showing column. Copyright Hilmar Hinz
Corymorpha nutans specimen, approximately 1 cm height. Copyright Hilmar Hinz	Specimen of Epizoanthus incrustatus with hermit crab Anapagurus laevis. Copyright Hilmar Hinz	Hydrallmania falcata at Firestone. Copyright Keith Hiscock	The compass jellyfish Chrysaora hysoscella swimming in a marina. Copyright Judith Oakley
Hoplangia durotrix with cup corals at Lundy. Copyright Keith Hiscock	Parazoanthus axinellae on rock face at Lundy Island. Copyright Keith Hiscock	Schizotricha frutescens at Gull Rock, Lundy. Copyright Keith Hiscock	Gymnangium montagui at St. James Stone, Lundy. Copyright Keith Hiscock
Metridium senile seemingly 'on the move', HMS Scylla. Copyright Paul Newland	By-the-wind-sailor, Velella velella. Copyright Steve Trewhella	Group of Velella velella stranded on the shore. Copyright Steve Trewhella	Actinothoe sphyrodeta showing the 'fried egg' colour morph on the wreck of the Mohegan at the Manacles, Cornwall. Copyright Robert Keen
Caryophyllia smithii on the Manalces, south-west Cornwall. Copyright Robert Keen	Tubularia indivisa bearing reproductive bodies in Lyme Bay, Devon. Copyright Robert Keen	Urticina felina at Scapa Flow, Orkneys. Copyright Robert Keen	Actinothoe sphyrodeta Penryn Reef, Manacles, southwest Cornwall. Copyright Robert Keen
Sagartia elegans var. rosea on the wreck of the Scylla, Whitsand Bay, Cornwall. Copyright Keith Hiscock	Sagartia elegans var. miniata at the Scilly Isles. Copyright Fiona Crouch	Sagartia elegans var. rosea with Alcyonium digitatum in the Isles of Scilly. Copyright Fiona Crouch	Close up of Metridium senile on Raglan Reef, Manacles, southwest Cornwall. Copyright Robert Keen
Actinia fragacea hanging off rock at Divers Beach, Lundy. Copyright Keith Hiscock	Actinia fragacea taken in Wales. Copyright Judith Oakley	Withdrawn Actinia fragacea individual, Wales. Copyright Judith Oakley	White Actinothoe sphyrodeta at Firestone Bay in Plymouth Sound. Copyright Keith Hiscock
Adamsia carciniopados on a hermit crab at the Breakwater Fort in the Plymouth Sound. Copyright Keith Hiscock	Adamsia carciniopados on a hermit crab at Porthkerris Reef, south Cornwall. Copyright Fiona Crouch	Actinothoe sphyrodeta showing striped column, at Doune, Scotland. Copyright Fiona Crouch	Wall of Actinia equina in the Gouliot Caves, Sark, Channel Isles. Copyright Sue Daly
Close up of Parazoanthus axinellae polyps in the Channel Isles. Copyright Sue Daly	Chrysaora hysoscella in the Channel Isles. Copyright Sue Daly	The sealoch anemone Protanthea simplex. Copyright Marine Conservation Society	Two Calliactis parasitica anemones associated with a hermit crab on the sand in the Channel Isles. Copyright Sue Daly
Close up of Alcyonium glomeratum polyps, at Hand Deeps, Plymouth. Copyright Keith Hiscock	Close up of Alcyonium glomeratum polyps in the Channel Isles. Copyright Sue Daly	Alcyonium glomeratum showing open and closed polyps in the Channel Isles. Copyright Sue Daly	Alcyonium digitatum and Alcyonium glomeratum at 25 meters depth in Firestone Bay, Plymouth Sound. Copyright Keith Hiscock
Sagartia elegans var. venusta on the wreck of the Scylla, Whitsand Bay, Cornwall. Copyright Keith Hiscock	Cluster of Epizoanthus couchii at Firestone Bay in Plymouth Sound. Copyright Keith Hiscock	Balanophyllia (Balanophyllia) regia, Plymouth. Copyright Keith Hiscock	A blue colour morph of Urticina felina. Copyright Paul Newland
Close up of Caryophyllia inornata. Copyright Paul Newland	Cerianthus lloydii on sandy substrata in Loch Fyne, Scotland. Copyright Jason Hall-Spencer	Caryophyllia smithii in Doune, Scotland. Copyright Fiona Crouch	Corynactis viridis on the hull of the wreck of the City of Westminster, Manacles, southwest Cornwall. Copyright Robert Keen
Corynactis viridis on Penryn Reef, Manacles, southwest Cornwall. Copyright Robert Keen	Corynactis viridis on the Wreck of the Mohegan at the Manacles, southwest Cornwall. Copyright Robert Keen	Epizoanthus couchii at Firestone Bay in Plymouth Sound. Copyright Keith Hiscock	Mermaids purse (dogfish egg) wrapped around Eunicella verrucosa at the Dartmouth Mewstone in south Devon. Copyright Keith Hiscock
Close up of the extended polyps of Eunicella verrucosa on Hand Deeps, Plymouth. Copyright Keith Hiscock	Mesacmaea mitchelli at East Lundy. Copyright Keith Hiscock	Mesacmaea mitchelli at East Lundy. Copyright Keith Hiscock	Nemertesia antennina Copyright Keith Hiscock
Parazoanthus anguicomus on dead Eunicella verrucosa at Coopers Cliff off shore Plymouth Sound. Copyright Keith Hiscock	Parazoanthus axinellae on Coopers Cliff off shore Plymouth Sound. Copyright Keith Hiscock	Close up of Parazoanthus anguicomus at Doune, Scotland. Copyright Fiona Crouch	Close up of Parazoanthus anguicomus on the Manacles, southwest Cornwall. Copyright Robert Keen
Protanthea simplex at Stome Narrows in Loch Carron, Scotland. Copyright Keith Hiscock	Taken on a night dive, Halcampoides abyssorum retracting back into the gravel on the south side of at Knoll Pins, Lundy. Copyright Keith Hiscock	Brown morph of Actinia equina. Copyright Peter Barfield	Lucernariopsis cruxmelitensis with distinctive maltese cross. Copyright Steve Trewhella
Gymnangium montagui. Copyright Paul Newland	A Pachycerianthus species off Sark. Copyright Paul Newland	Compass jellyfish trapped among seaweed. Copyright Steve Trewhella	The dahlia anemone. Copyright Steve Trewhella
Dried by-the-wind sailors on the beach. Copyright Steve Trewhella	Cataphellia brodricii. Copyright Steve Trewhella	Two Bunodactis verrucosa on the rocky shore. Copyright Steve Trewhella	Bunodactis verrucosa attached to a rock. Copyright Steve Trewhella
Chrysaora hysoscella washed up on the beach. Copyright Steve Trewhella	The tentacles of an Anemonia viridis carried by the current. Copyright Steve Trewhella	Close up of the tentacles of an Anemonia viridis. Copyright Steve Trewhella	Small colony of the weymouth carpet coral Hoplangia durotrix. Copyright Steve Trewhella
An Actinia equina attached to the substratum. Copyright MarLIN	Peachia cylindrica buried in coarse sand. Copyright Paul Newland	Actinauge richardi, tentacles retracted. Copyright Hilmar Hinz	Close up of tentacles of Actinauge richardi. Copyright Hilmar Hinz
Close-up view of Pennatula phosphorea. Copyright Hilmar Hinz	Close up view of drifting Apolemia uvaria. Copyright Paul Newland	Group of Urticina felina. Copyright Paul Naylor	Clump of Parazoanthus anguicomus. Copyright Paul Naylor
Amphianthus dohrnii in the Scilly Isles. Copyright Robert Keen	Actinia equina in between rocks. Copyright Steve Trewhella	Pair of Aiptasia mutabilis on a soft sediment - lateral view. Copyright Steve Trewhella	Aiptasia mutabilis on a soft sediment. Copyright Steve Trewhella
Anemonia viridis standing out in murky waters. Copyright Steve Trewhella	Aulactinia verrucosa pair on a sandy seabed. Copyright Steve Trewhella	Aulactinia verrucosa pair viewed from above. Copyright Steve Trewhella	Three retracted Aulactinia verrucosa. Copyright Steve Trewhella
Capnea sanguinea, conspicuous on a brown seabed. Copyright Steve Trewhella	Small group of Epizoanthus couchii. Copyright Steve Trewhella	Small group of Leptopsammia pruvoti. Copyright Steve Trewhella	Abietinaria abietina at Stoke. Copyright Keith Hiscock
Antennella secundaria hanging down from an overhang. Copyright Keith Hiscock	Antennella secundaria at Lundy. Copyright Keith Hiscock	Antennella secundaria on a sea fan. Copyright Keith Hiscock	Clytia hemisphaerica growing on the bryozoan Pentapora. Copyright Keith Hiscock
The hydroid Garveia nutans. Copyright Keith Hiscock	Gymnangium montagui at Hand Deeps. Copyright Keith Hiscock	Gymnangium montagui at Firestone. Copyright Keith Hiscock	Gymnangium montagui at Hand Deeps sideways view. Copyright Keith Hiscock
Close up view of Gymnangium montagui at an aquarium. Copyright Keith Hiscock	Halecium halecinum at Mewstone, Plymouth. Copyright Keith Hiscock	Halecium halecinum at Firestone, Plymouth. Copyright Keith Hiscock	Hydrallmania falcata at Firestone - from a distance. Copyright Keith Hiscock
Sertularella gayi at West Eddystone, Plymouth. Copyright Keith Hiscock	Tubularia indivisa heads over a dark background. Copyright Keith Hiscock	Tubularia indivisa patch at Firestone. Copyright Keith Hiscock	Small group of Tubularia larynx. Copyright Keith Hiscock
Group of Tubularia larynx at the Scylla, Plymouth. Copyright Keith Hiscock	Group of Tubularia larynx at the Scylla, Plymouth. Copyright Keith Hiscock	Group of Tubularia larynx at the Scylla, Plymouth. Copyright Keith Hiscock	Tubularia larynx at Firestone. Copyright Keith Hiscock
Parerythropodium hibernicum. Copyright Keith Hiscock	Retracted Balanophyllia (Balanophyllia) regia. Copyright Keith Hiscock	Alcyonium glomeratum against a black background. Copyright Keith Hiscock	Lone Caryophyllia smithii on a rock. Copyright Keith Hiscock
Velella velella stranded on a sandy shore. Copyright Keith Hiscock	The jellyfish Pelagia noctiluca. Copyright Paul Newland	Close up view of the jellyfish Pelagia noctiluca. Copyright Paul Newland	Anthopleura ballii on a sublittoral seabed. Copyright Fiona Crouch
Lone Cerianthus lloydii on a sandy seabed in Doune. Copyright Fiona Crouch	Cereus pedunculatus almost hidden amongst seaweed on a gravel bed. Copyright Fiona Crouch	Centre of Pachycerianthus multiplicatus against a black background. Copyright Fiona Crouch	Retracted Pachycerianthus multiplicatus against a black background. Copyright Fiona Crouch
Peachia cylindrica on a gravel bed. Copyright Fiona Crouch	Protanthea simplex surrounded by brittle stars. Copyright Fiona Crouch	Tatty looking Tubularia indivisa individuals. Copyright Fiona Crouch	Lucernariopsis cruxmelitensis in Doune. Copyright Fiona Crouch
Five closed Actinia equina individuals at low tide. Copyright Judith Oakley	Closed Actinia equina individuals on an overhang. Copyright Judith Oakley	A patch of a bryozoan of the genus Tricellaria. Copyright Judith Oakley	Tricellaria inopinata near a rockpool. Copyright Judith Oakley
A closed Actinia equina individual at low tide. Copyright Judith Oakley	A closed Actinia fragacea specimen. Copyright Judith Oakley	Green and pink-tipped Anemonia viridis at low tide. Copyright Judith Oakley	Dome of Chrysaora hysoscella. Copyright Judith Oakley
Chrysaora hysoscella in a harbour. Copyright Judith Oakley	Cyanea lamarckii washed ashore a cobble beach. Copyright Judith Oakley	Cereus pedunculatus on cobbles. Copyright Judith Oakley	Orange-centred Sagartia elegans with clear white spots on the column. Copyright Judith Oakley
Closed Urticina felina. Copyright Judith Oakley	Alcyonium digitatum under an overhang at low tide. Copyright Judith Oakley	Alcyonium digitatum under an overhang at low tide - close up view. Copyright Judith Oakley	A standed Chrysaora hysoscella at Skomer Island. Copyright Judith Oakley
Nemertesia antennina at Mewstone, Plymouth. Copyright Paul Newland	Tubularia indivisa experiencing relatively strong currents. Copyright Paul Newland	Sagartiogeton undatus on sandy sublittoral sediment. Copyright Paul Newland	Lone, olive green Aiptasia mutabilis. Copyright Paul Newland
Hermit crab with Hydractinia echinata growth on its shell. Copyright Paul Newland	Nemertesia ramosa colony. Copyright Paul Newland	Contracted Actinia fragacea above water. Copyright Holly Latham	Haliclystus auricula Copyright Steve Trewella
A white sea fan amongst pink fans on the wreck of the Persier, Bigbury Bay. Copyright Paul Newland	Single piece of Abietinaria abietina washed up on strandline at Shingle Beach, Hastings, E. Sussex. Copyright Nigel Sawyer	Amphianthus dohrni Copyright Keith Hiscock	Anemonia viridis Copyright Keith Hiscock
Anthopleura ballii spawning Copyright Keith Hiscock	Caryophyllia smithii Copyright Keith Hiscock	Caryophyllia smithii Copyright Keith Hiscock	Leptopsammia pruvoti Copyright Keith Hiscock
Sagartia elegans Copyright Keith Hiscock	The sea-fir Dynamena pumila attached to an intertidal fucoid. Copyright David Fenwick	The sea-fir Dynamena pumila attached to an intertidal fucoid. Copyright David Fenwick	An attached hydroid found in a littoral rockpool. Copyright David Fenwick
An attached hydroid found in a littoral rockpool. Copyright David Fenwick	Closeup of the jellyfish Aequorea forskalea washed up on beach. Copyright David Fenwick	Beach with hundreds of washed-up Aequorea forskalea. Copyright David Fenwick	Floating pneumatophore of a live colony of Physalia physalis. Copyright Keith Hiscock
A white Sandalled anemone, showing column and tentacles. Copyright John Hepburn	A partially-retracted white Sandalled anemone, showing column and tentacles. Copyright John Hepburn	An orange-striped anemone at Porthallow, showing striped orange scaphus. Copyright Matthew Jeanes	A parasitic anemone on the claw of the edible crab, Cancer pagurus. Copyright Matthew Jeanes
A group of daisy anemones found near a Zostera noltii seagrass bed. Copyright John Hepburn	Cerianthus lloydii on seabed Copyright Steve Trewhella	A collection of sandalled anemones Copyright Steve Trewhella	Macro image of a stranded Portuguese man o' war. Copyright Steve Trewhella
A macro image of an anemone on rocky substratum Copyright Sue Daly	Actinia equina Copyright Sue Daly	a blue jellyfish in open water Copyright Sue Daly	A feeding blue jellyfish Copyright Sue Daly
Pachycerianthus multiplicatuson rocky substratum Copyright Sue Daly	Bolocera tuediae on rocky substratum Copyright Fiona Crouch	Swiftia pallida surrounded by coral polyps. Copyright Fiona Crouch	Capnea sanguinea on the sea floor. Copyright Fiona Crouch
Corymorpha nutans on shelly sand. Copyright Fiona Crouch	Kirchenpaueria pinnata on muddy sand. Copyright Fiona Crouch	Thuiaria thuja on rocky substrate. Copyright Fiona Crouch	Nemertesia ramosa hydroid colonies at the Runnelstone, Cornwall Copyright Paul Newland
A small-headed clingfish resting on a rock. Copyright Jeff Blincow	A recently stranded Chrysaora hysoscella. Copyright Becky Seeley	A wall covered with a number of beadlet anemones. Copyright Steve Trewhella	A gem anemone. Copyright Tabitha Pearman
An attached stalked jellyfish Craterolophus convolvulus. Copyright Steve Trewhella	A Cereus pedunculatus anemone surrounded by Corynactis viridis anemones. Copyright Paul Newland	A plumose anemone colony. Copyright Paul Newland	A Lion's mane jellyfish near the surface. Copyright Gordon Lang
Bolinopsis infundibulum near the surface. Copyright Gordon Lang	Bolinopsis infundibulum near the surface. Copyright Gordon Lang	A northern sea fan. Copyright Gordon Lang	A group of Alcyonium digitatum colonies in the Firth of Lorn. Copyright Gordon Lang
A collection of anemones amongst Sabella pavonina. Copyright Gordon Lang	A sea loch anemone. Copyright Gordon Lang	A bblue jellyfish in shallow water. Copyright Tabitha Pearman	Diphasia nigra on rocky reef. Copyright Paul Newland
Diphasia nigra Copyright Paul Newland	Urticina felina Copyright Cathal McNaughton	Urticina felina Copyright Cathal McNaughton	Abietinaria abietina Copyright Paul Newland
Cereus pedunculatus Copyright Steve Trewhella	Aulactinia verrucosa Copyright Steve Trewhella	Metridium senile Copyright Steve Trewhella	Metridium senile Copyright Steve Trewhella
Lucernariopsis campanulata Copyright Steve Trewhella	Lucernariopsis cruxmelitensis Copyright Steve Trewhella	Haliclystus auricula on eel grass. Copyright Steve Trewhella	Sagartiogeton undatus Copyright Steve Trewhella
Nemertesia antennina Copyright Paul Newland	Nemertesia antennina close up. Copyright Paul Newland	Caliactis parasitica attached to a common whelk shell that is inhabited by a large hermit crab. Copyright Paul Newland	Parazoanthus axinellae Copyright Paul Newland
Caryophyllia smithii, the Devonshire cup coral. Copyright Paul Newland	Caryophyllia smithii, the Devonshire cup coral. Copyright Paul Newland	Antennella secundaria Copyright Paul Newland	Colony of Antennella secundaria Copyright Paul Newland
White and orange Metridium senile Copyright Gordon Lang	Alcyonium digitatum Copyright Gordon Lang	Urticina felina Copyright Julian Madle	Metridium senile showing catch tentacles Copyright Dylan Jones
Rhizostoma pulmo washed up on the beach Copyright Geoff Coates	Neoturris pileata Copyright Peter Bardsley	Metridium senile with tentacles retracted, surrounded by brittlestars Copyright Julian Madle	Urticina felina (showing colour variation between the two) Copyright Julian Madle
Anthopleura ballii (red speckled pimplet) Copyright Paul Newland