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sealord > Guernsey Sea hares and sea slugs > Favorinus branchialis nudibranch Lihou 100509 ©RLLord 4079 smg
sealord > Guernsey Sea hares and sea slugs > Aplysia punctata BG 140209 1802 smg
sealord > Guernsey molluscs > Raphitoma purpurea coralline pool BG 180407 9-899 smg
sealord > Guernsey molluscs > Calliostoma zizyphinum BG 180407 12-899 smg
sealord > Guernsey molluscs > Ovatella myosotis BG 180407 28-899 smg
sealord > Guernsey molluscs > Raphitoma purpurea coralline pool BG 180407 5-899 smg
sealord > The common periwinkle is common on the shores of the UK and on the shores of France but virtually absent from the shores of Guernsey, Channel Islands. In Guernsey the periwinkle is replaced by topshells - particularly the toothed topshell, Oselinus lineata, and the purple or flat topshell, Gibbula umbilicalis. This is an image of a periwinkle, Littorina littorea, in a tide pool at Cullercoats north of Tynemouth on the North Sea coast of England. Photographed on the 18 March 2007. File No. 180307 7099 ©RLLord fishinfo@guernsey.net
sealord > This image shows the foot of the turban top shell, Gibbula magus. I turned the snail on its side. The animal extended its foot to quickly turn itself over. This image clearly shows the epipodal tentacles. One eye is hidden behind the 'R' in the Sealord watermark. Dr. Alastair Graham provides a detailed description of the animal in his book "Molluscs: Prosobranch and Pyramidellid Gastropods" published as part of the Synopses of the British Fauna. The following attributes which he writes about can be seen in this photograph: The snout is densely papillated. The epipodal ridge has a scalloped edge. The foot is blunt anteriorly, pointed posteriorly. Its dorsal surface carries many transverse grooves. The umbilicus (which is a deep hole in the base of the shell separate from the opening from which the animal extends from) can be seen above the 'h' in 'Photography'. The umbilicus is large and approached by a comma-shaped groove. Dr. Graham writes that turban top shells "usually live below tidemarks, though rare specimens may be found at L.W.S.T." (low water during a spring tide). This description matches my observations. File No. BG 200307 31-891 ©RLLord fishinfo@guernsey.net
sealord > The live turban top shell, Gibbula magus, was found on the beach in Belle Greve Bay on Guernsey's east coast on 20 March 2007. This is the first live individual I have seen in Guernsey. Empty turban top shells are quite common on Chouet beach in Ladies Bay on Guernsey's north coast. The tentacles of a worm, possibly a spionid worm, may be sticking out of the top of the snail shell but I need to contact a specialist to verify this. File No. BG 200307 28-891 ©RLLord fishinfo@guernsey.net
Favorinus branchialis nudibranch Lihou 100509 ©RLLord 4079 smg
Guernsey Sea hares and sea slugs > Favorinus branchialis nudibranch Lihou 100509 ©RLLord 4079 smg
Favorinus branchialis nudibranch Lihou 100509 ©RLLord 4079 smg
See photo in original gallery.
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