Halgerda sp. 8
Order: NUDIBRANCHIA
Suborder: DORIDINA
Superfamily: EUDORIDOIDEA
DISTRIBUTION
Known only from western Indian Ocean
PHOTO
Locality: Reunion Island, Indian Ocean. Photographer: Philibert Bidgrain and Sebastien Pomarede.
Authorship detailsRudman, W.B., 2008 (September 18) Halgerda sp. 8 [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/halgsp8
Related messages
Re: Halgerda okinawa? from the Red Sea
September 22, 2008
From: Philibert Bidgrain
Concerning message #19246:
Dear Bill,
We found four specimens of this maybe "Halgerda cf willeyi"??. The yellow coloration of the ridge is sometimes very pale, but the markings on the underside of the mantle are always present .. It seems very different from H. okinawa...
Locality: Reunion Island, Indian Ocean. Photographer: Philibert Bidgrain & Sebastien Pomarede.
I send you photos of two different specimens
Best regards
Philibert Bidgrain
vieoceane@free.fr
Bidgrain, P., 2008 (Sep 22) Re: Halgerda okinawa? from the Red Sea. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19309
Dear Philibert,
I would agree that linking it to H. okinawa was a bit desperate of me. I think it deserves a page of its own. I have called it Halgerda sp. 8.
Best wishes,
Bill Rudman
Halgerda okinawa? from the Red Sea
January 23, 2007
From: Karen Curtis-Vincent
Note added 21 September 2008: I am considering this a distinct species - Halgerda sp. 8.
Hi
I found this nudibranch yesterday & having looked in a few books available to me it looks like it belongs to Halgerda. Closest I've found is Halgerda willeyi although the literature states the ones found in the red sea have black marking whereas the one I observed had dark reddish markings.
Can you confirm if you think this is Halgerda willeyi or something else.
Locality: Shark's Bay, Sharm El Sheikh, ~25m, Egypt, Red Sea, 16 Jan 07, Reef Wall. Photographer: Karen Curtis.
Many thanks
Kaz
phrixus.nyx@gmail.com
Curtis-Vincent, K., 2007 (Jan 23) Halgerda okinawa? from the Red Sea. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19246
Dear Kaz,
It doesn't look like H. willeyi, a species that doesn't have brown (or black) markings like this on the underside of the mantle. One possibility is that it is a form of Halgerda okinawa, but it is a long way from 'home'. Despite the good work Halgerda has received in recent years, I am afraid we still have a lot to learn about species of the genus.
Best wishes,
Bill Rudman
