Costasiella sp. 1. from South Africa

February 5, 2002
From: Valda Fraser

Dear Bill,
Lots of these small nudibranchs live in particular parts of the pools that I often snorkel in. They like very shallow water where bubbles seem to form at low tide. Can you help with identification?
Locality: Pumula, south coast KwaZulu-Natal, South Africa, intertidal zone
Date: December 2001
Size: From about 5 - 12 mm

Regards
Valda Fraser

valdafraser@mweb.co.za

Fraser,V., 2002 (Feb 5) Costasiella sp. 1. from South Africa. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/5844

Dear Valda,
This is Costasiella sp. 1. From your description, this is one of a number of species of sacoglossan from around the world which live right 'at the edge' where the tide pools are high, and often quite hot, and only have their water changed at the highest of high tides. Cynthia Trowbridge studied a New Zealand ecological equivalent, Ercolania felina and aptly described it as 'life at the edge'.
Best wishes,
Bill Rudman.

Rudman,W.B., 2002 (Feb 5). Comment on Costasiella sp. 1. from South Africa by Valda Fraser. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/5844

Factsheet

Costasiella sp. 1.

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