Rostanga arbutus from Sydney

March 19, 2001
From: Erik Schloegl

Dear Bill,
Here's another (more recent) shot from Camp Cove, Sydney Harbour. It was taken on February 19, 2001. The depth was 6m, the water temperature 22 C. Given your reply to my previous message, I think this may be a juvenile Trippa intecta - it was only about 5mm long. Have I learned something here or do I need to do some more homework?

Best regards,
Erik

Erik.Schlogl@uts.edu.au

Schloegl, E., 2001 (Mar 19) Rostanga arbutus from Sydney. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/3990

Dear Erik,
Like Trippa ornata this animal does have spiky tubercles or papillae on its mantle but they are a bit different. Your photo is of Rostanga arbutus. Both species of Rostanga and Jorunna [see Jorunna pantherina] have spiculate tubercles called caryophyllidia which have a ring of glass-like spicules which project from the skin of each tubercle, giving the whole mantle a rough 'furry' appearance and feel.
Best wishes,
Bill Rudman

Rudman, W.B., 2001 (Mar 19). Comment on Rostanga arbutus from Sydney by Erik Schloegl. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/3990

Factsheet

Rostanga arbutus