Is this S.African pleurobranch Berthella?

April 18, 1999
From: Ernest C.J. Seamark

The image attached was ID as Berthella tupala, using Gosliner (1987) The nudibranchs of SA key. Subsequently I've read reports that Berthella tupala is white and not orange/ yellow with orange spots. This specimen was collected in the inter-tidal zone of Treasure Beach, 6km south Durban Harbour, KwaZulu Natal, South Africa. On 15 November 1997. I do not think that this species has been found in South Africa. Do you have any idea of what it is?

Please email me your reply. Thanks for your help.

Ernest C.J. Seamark

kearneyt@biology.und.ac.za

Seamark, E.C.J., 1999 (Apr 18) Is this S.African pleurobranch Berthella?. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/786

Dear Ernest,
This is what Gosliner identifies as Pleurobranchus inhacae Macnae, 1962. Known only from Natal to Mozambique, it seems to be a colour form of Pleurobranchus peroni. See the Top of this Page for pictures showing the colour range found in P. peroni.
Berthella tupala Marcus 1957 was shown by Gosliner & Bertsch, (1988), to be a circumglobal species illustrated in the Sea Slug Forum as Berthella stellata.

Best wishes,
Bill Rudman.

Rudman, W.B., 1999 (Apr 18). Comment on Is this S.African pleurobranch Berthella? by Ernest C.J. Seamark. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/786

Factsheet

Pleurobranchus peroni

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