Re: More Halgerda wasinensis pics from Mozambique.

August 10, 2007
From: Natasja Vandeperre

Concerning message #13237:

Hello Bill,

I have another mating Halgerda wasinensis picture from Tofo, Mozambique. Unfortunately they are both the lighter colour form.

Locality: Manta Reef, Tofo, 20m, Mozambique, Indian Ocean, 11 July 2007. Length: 20 mm. Photographer: Natasja Vandeperre.

Greetings,
Natasja

postmaster@naaktslakken.be

Natasja Vandeperre, 2007 (Aug 10) Re: More Halgerda wasinensis pics from Mozambique.. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20410

Dear Natasja,

Thanas for these. Yes it would be nice to get the two colour 'forms' mating but at least this photo shows how the black spots merge to form large black patches. It is also interesting to see the shape of the everted copulatory organs. It seems in this species the whole of the genital vestibule everts out of the body to form a flattened disc. It would be interesting to know if this is a character of all species of Halgerda. This sort of information can't usually be found when dissecting a preserved animal because the organs have retracted back into the body.

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (Aug 10). Comment on Re: More Halgerda wasinensis pics from Mozambique. by Natasja Vandeperre. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20410

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