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Nudibranch Bornella anguilla - Kenting (22-23May10) C 127.JPG
Kenting, Taiwan -- The nudibranch Bornella anguilla rearing its head over a sandy substrate.<br />
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Clearly depicted in this picture is the gray/black 'eye spot' of this nudibranch, just under the rhinophores. The 'eyes' of opisthobranchs are far less developed than the eyes of their mollusks relatives, the squid, octopus and cuttlefish.<br />
In most cases the eyes only consist of a light-sensitive pigment spot that transmits stimulation to the brain via an unrefined optic nerve.<br />
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When disturbed this nudibranch can swim rapidly in an eel-like movement.