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ALL TIME FAVORITE CRITTERS

CRITTERS LIST

NUDIBRANCHS

The adult form is without a shell or operculum (in shelled gastropods the operculum is a bony or horny plate that can cover the opening of the shell when the body is withdrawn). The name nudibranch is appropriate, since the dorids (infraclass Anthobranchia) breathe through a "naked gill" shaped into branchial plumes in a rosette on their backs. By contrast, on the back of the aeolids in the clade Cladobranchia there are brightly colored sets of protruding organs called cerata. Nudibranchs have cephalic (head) tentacles, which are sensitive to touch, taste, and smell. Club-shaped rhinophores detect odors.

Nudibranchs are hermaphroditic, and thus have a set of reproductive organs for both sexes, but they cannot fertilize themselves. Nudibranchs typically deposit their eggs within a gelatinous spiral. All known nudibranchs are carnivorous. Some feed on sponges, others on hydroids,(e.g. Cuthona) others on bryozoans (phanerobranchs such as Tambja, Limacia, Plocamopherus and Triopha), and some eat other sea slugs or their eggs (e.g. Favorinus) or, on some occasions, are cannibals and prey on members of their own species. Other groups feed on tunicates (e.g. Tambja, Nembrotha, Polycera, Thecacera), other nudibranchs (Roboastra, which are descended from tunicate-feeding species), barnacles (e.g. Onchidoris), and anemones (e.g. the Aeolidiidae and other Cladobranchia).

See Nudibranch (Defense mechanisms)

Oscellated octopus "MOTOTI"

Rudman's phyllodesmium

Jakobsen's phyllodesmium

Emperor shrimp

Coleman shrimp

Skeleton shrimp

Bobtail squid

Ghostpipe fish

Seahorses

Saw-blade shrimp

Flamboyant cuttlefish

Pygmy seahorse

Marble shrimp

Squat lobster

Nudibranchs

Nudibranchs 2

Electric scallop