June 9, 2005
From: Colin Ogden
Is this a Hypselodoris bullocki.? I have never seen this nudibranch before, but I noticed it twice today, on 2 very seprated reefs. They were both extremely small less than 1cm. Does that mean they have recently hatched, and is this seasonal.
Locality: Sodwana Bay, South Africa. Indian Ocean. Depth: 24 metres. Length: 10 mm. 05 June 2005. coral reef. Photographer: Colin Ogden
firstname.lastname@example.orgOgden C M, 2005 (Jun 9) Thorunna horologia from Sodwana Bay. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/13974
This is Thorunna horologia, a small chromodorid which doesn't grow much larger than a 10-15 mm. This animal has only been reported from Tanzania and northeasten South Africa, and then very rarely, so we can't say much about its biology and we certainly have no idea of its life history. Like many small nudibranchs it probably only lives a few months.
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