Rostanga arbutus (Angas, 1864)

Rostanga arbutus
Rostanga arbutus
Photographer: 
Ian Shaw
Date: 
Wednesday, 29 January 2014
Location: 
Low Reef, Sandy Beach
Depth: 
1m
Distribution:

Uncommon in the Solitary Islands Marine Park. Endemic to New South Wales waters.

Ecological Notes:

Frequents tidal rock pools and platforms, where it is often found crawling over rocks and algae. Recorded from a depth of at least 6 m.

Additional Notes:

Found in association with similarly coloured encrusting food sponge, Clathria sp. A small species easily overlooked, it has an orange mantle with a close covering of colourless translucent caryophyllidia (spiculate tubercles - glass like spicules which project from the skin) giving the mantle a rough "furry" feel and appearance.  Grows to about 12 mm.

References:

Gary Cobb, David Mullins, Nudibranchs Encyclopedia, 2nd Edition, 2015. Publishers Thomas Slone, Masalai Press and Tim Hochgrebe, Underwater Australasia. p.190.

Australian Museum, Sea Slug Forum. http://www.seaslugforum.net/find/rostarbu. Accessed 26/09/2018.