The colorful short-tailed nudibranch (Ceratosoma brevicaudatum),

a common nudibranch endemic to the area.

(Rapid Bay Jetty, South Australia)

mollusk; gastropod; sea slug; short-tailed nudibranch; Mollusca; Gastropoda; Nudibranchia; Doridina; Cryptobranchia; Chromodorididae; Ceratosoma brevicaudatum, Australia