Unlike a bulldozer the nudibranch (sea slug) Ceratosoma brevicaudatum eats its way through its path rather than pushes it.
This little guy would have to be one of the most common nudibranchs seen be divers along our southern coastline. A regular on both Edithburgh and Rapid Bay jetties, Ceratosoma brevicaudatum is both large at 5-10cm in length and colourful making it easily spotted by divers not skilled in finding its smaller cousins.
This nudibranch at Rapid Bay Jetty today looks to be feeding on a pink/purple sponge making a striking contrast with it own colours!
Photo: Robert Rath, ‘Day 669, Sponge Dozer’, 1/40s f11 ISO320 100mm+20mmEXT