Reticulidia halgerda

Scientific name : Reticulidia halgerda

Hard, high profile back, dark brown with orange and white ridges in any directions. No external gills, orange rhynophores. 7 cm.
Easy to identify. The scientific name underlines the similitude with the genus Halgerda, that always has a gills tuft.

Associated organisms
Sponges, on which it feeds.