Roboastra arika
Burn, 1967
Order: NUDIBRANCHIA
Suborder: DORIDINA
Superfamily: ANADORIDOIDEA
Family: Polyceridae
Subfamily: Nembrothinae
PHOTO
Heron Island, Great Barrier Reef, Australia. 15 metres, December 8, 1997. 28 mm long. Photo: Julie Marshall.
Note added 16 August 2005: This species is now on the Forum asTambja victoriae . The real Roboastra arika is probably a synonym of Roboastra gracilis.
ARCHIVE NOTE: An earlier edition of this Fact Sheet [17 Jan 2001] is available on request.
Authorship detailsRudman, W.B., 2005 (August 16) Roboastra arika Burn, 1967. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/roboarik
Related messages
Roboastra arika from Durban, South Africa
June 13, 2001
From: Kirsty Miller
Dear Bill
I found this nudibranch on a wreck off Durban, South Africa, at a depth of 16 m. Its size is 4.5 cm. I think it could be of the family Polyceridae. Could you please help me with an ID
Thanks
Kirsty Miller
divegirl@xsinet.co.za
Miller, K., 2001 (Jun 13) Roboastra arika from Durban, South Africa. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/4498Dear Kirsty,
This is Roboastra arika which has been reported from the Maldives, Thailand and the south western pacific (trop Australia and Papua New Guinea) so this is an interesting find.
Best wishes,
Bill Rudman
Roboastra arika from the Solomon Islands
January 19, 2001
From: Mary Jane Adams
Hi Bill,
I can't figure this one out. It looks like a Nembrotha sp. to me. It was crawling rapidly over encrusted junk at the Ghavutu Island dumpsite in the Florida Islands, Solomon Islands.
Crawling length: 21 mm
Depth: 15 meters
Water temp: 84 F
Dec. 3, 2000
Can you ID it?
Thanks,
Mary Jane
divepng@yahoo.com
Adams, M.J., 2001 (Jan 19) Roboastra arika from the Solomon Islands. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/3562Dear Mary Jane,
The bright blue often visible in this species makes it a favourite of photographers to the Great Barrier Reef. It was named, by Bob Burn, Roboastra arika, a genus related to Nembrotha.
Best wishes,
Bill Rudman