Reticulidia not Halgerda

April 11, 2000
From: Narongpon Sittithaweepat

Dear Bill
Concerning your earlier comments, I think it isn't Halgerda because it has gill between notch and foot. I think it is Reticulidia sp.
Thank you
Narongpon Sittithaweepat.

chromodorid@yahoo.com

Sittithaweepat , N., 2000 (Apr 11) Reticulidia not Halgerda. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2246

Dear Narongpon,
You are quite right. If it has the gills underneath the mantle as you describe it is clearly not Halgerda.

Thanks for the second photo. Certainly no sign of a gill pocket. Your animal is an unnamed species of Reticulidia, Reticulidia fungia and Reticulidia halgerda being the only two described species.

For those of you unfamilar with the gills in phyllidiids I have included here a photo showing the secondary gill leaflets of Phyllidia ocellata which, like all phyllidiids, form a band down each side of the body beneath the mantle skirt.

Best wishes,
Bill Rudman.

Rudman, W.B., 2000 (Apr 11). Comment on Reticulidia not Halgerda by Narongpon Sittithaweepat . [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2246

Factsheet

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