Halgerda okinawa from the Philippines

May 23, 2005
From: Erwin Koehler

Dear Bill,
scanning through all Halgerda shots in the web I find only Halgerda okinawa with yellow rhinophores. So, are these 3 specimens Halgerda okinawa or something else? In the field I thought it is a colour variant of Halgerda willeyi, at home I noticed the yellow rhinophores and gills.

Locality: Calangaman Island, Cebu north, Philippines. Depth: 22-32 m. Length: 7-9 cm. 05 May 2005. Photographer: Erwin Koehler

Regards Erwin
www.Philippine-Sea-Slugs.com

Erwin@Philippine-Sea-Slugs.com

Koehler, E., 2005 (May 23) Halgerda okinawa from the Philippines. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/13815

Dear Erwin,
I would think these are all colour variations of Halgerda okinawa. Although there is quite a bit of variation in the yellow colouration on the ridges, the strong black lines radiating out from the tubercles, the yellow rhinophores, and the high gill pocket, all seem to charcterise the species.
Best wishes,
Bill Rudman

Rudman, W.B., 2005 (May 23). Comment on Halgerda okinawa from the Philippines by Erwin Koehler. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/13815

Factsheet

Halgerda okinawa

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