Sea Slugs (Polyceridae)
Nudibranchs, Lineolata Sea Slug, Lined Nembrotha, Fine-lined Nembrotha, Robin Nudibranch, Robin Sea Slug.
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Also known as Nudibranchs, Lineolata Sea Slug, Lined Nembrotha, Fine-lined Nembrotha, Robin Nudibranch and Robin Sea Slug.
Found singly or in pairs, on coral reefs amongst seagrass and corals.
These were found on a slope "mating".
They feed on hydroids, coral, sponges and anemones.
Length - 4.5cm
Depth - 5-30m
Widespread Western Indo-Pacific
Opisthobranchia - Nudibranchs - Sea Slugs meaning "naked gills" are molluscs without a hard shell.
All opisthobranchs are hermaphrodites.
These beautiful slugs are usually brilliantly coloured and this in itself can act as a deterrent against predators. Some sea slugs secrete acid from stinging cells in their tentacles while others secrete acid from cells in their mantle.
Nudibranchs are slow moving, can swim or be propelled along either by muscular contraction or by millions of tiny hairs on the bottom of a fleshy 'foot', they have a voracious appetite and feed with a rasp like tongue.
Nudibranch lay their eggs in a ribbon effect on the sand, in different colours depending on species.
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