Re: Hypselodoris saintvincentius from South Australia

July 29, 2008
From: Yahia Mokhtar

Concerning message #14629:

While diving the Persian Gulf yesterday on MV-Hannan wreck, 34 nm off Abu-Dhabi island, and photographing a cluster of seven Chromodoris annulata, I noticed a very tiny black Nudibranch, barely seen, of about 3-4 mm length, and 1 mm width.


I took several pictures with Macro & zoom, and here are the best photos after enlargement, where you can compare my thumb to the nudibranch.
Compared it to Dennis's picture in South Australia in August 26, 2005, and there is a big similarity. Hopefully no Great White Sharks in the area, could this be a Hypselodoris saintvincentius?

Locality: MV-Hannan Wreck, 12m, Abu-Dhabi, United Arab Emirates, Persian Gulf (South), 26 July 2008, wreck on 20 m depth. Length: 3-4 mm. Photographer: Yahia Mokhtar.

Yahia Mokhtar

yahia@adma.ae

Mokhtar, Y., 2008 (Jul 29) Re: Hypselodoris saintvincentius from South Australia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21748

Dear Yahia,

As I mention in the earlier message, H. saintvincentius and H. infucata are difficult to distinguish. It is possible that H. saintvincentius will prove to be a southern Australian 'form' of the widespread H. infucata. Your animal is a juvenile Hypselodoris infucata.

Your mention of large C. annulata and small H. infucata together reminds me of my photo [#15058] of the opposite. More importantly, perhaps you could check your photos of the cluster of C. annulata. Hopefully they show the sponge this species eats more clearly than in your other message [#21749 ]?

Best wishes,
Bill Rudman

Rudman, W.B., 2008 (Jul 29). Comment on Re: Hypselodoris saintvincentius from South Australia by Yahia Mokhtar. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21748

Factsheet

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