Re: Chromodoris cavae from Reunion Island?
May 4, 2007
From: Philibert Bidgrain
Concerning message #19851:
Dear Bill,
Colour morphs of Chromodoris cavae from Reunion Island
I found on a rocky coast 5 specimens of this species. The size ranges from 20-25 mm lower photo] to 45 mm [upper photo]. We can observed some colour variation on the mantle coloration.
Do you think that all these specimens are C. cavae? What's the external difference between C. cavae and C. tennentana?
Locality: Etang salé, Less 1 m, Réunion Island, Indian océan, Rocky coast. Length: 20 to 45 mm. Photographer: Philibert Bidgrain.
Philibert Bidgrain
http://vieoceane.free.fr/runseaslug/indexslug.htm
pbidgrain@yahoo.fr
Bidgrain, P., 2007 (May 4) Re: Chromodoris cavae from Reunion Island?. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19869Dear Philibert,
Yes I agree this is a colour form of C. cavae. The orange spots surrounded by a whitish ring are an interesting example of how black and dark purple pigments in a number of chromodorids can be replaced by an orange-brown colour at times. This is a valuable complement to your messages #19868 and # 19870.
I have discussed C. cavae and C. tennentana in a separate messages [#19876; #19875]. Because of the great variability in colour in C. cavae comparisons between the two species is difficult, but the rhinophore and gill colours is quite distinct. In C. tennentana the rhinophore club is brownish to reddish brown with a white tip and the gills are usually a dark brown, sometimes with white spots. In C. cavae the rhinophores and gills are white with pale purple tips, but as I discuss, in southern specimens the purple can be more dominant.
Best wishes,
Bill Rudman
Related messages
-
Re: Chromodoris cavae feeding
From: Colin Ogden, August 28, 2008 -
Re: Chromodoris cavae from South Africa
From: Colin Ogden, May 7, 2007 -
Re: Chromodoris cavae from Reunion Island?
From: Philibert Bidgrain, May 4, 2007 -
Variation in Chromodoris cavae
From: Bill Rudman, May 4, 2007 -
Re: Chromodoris cavae from Reunion Island?
From: Hugues Flodrops, May 4, 2007 -
About Chromodoris cf geminus from Reunion Island
From: Philibert Bidgrain, May 4, 2007 -
Chromodoris cavae from Reunion Island?
From: Hugues Flodrops, May 3, 2007 -
Chromodoris cavae from India
From: K. Padmakumar, January 29, 2003 -
Rediscovery of Chromodoris cavae Eliot, 1904
From: Bill Rudman., November 13, 1999 -
Chromodoris vicina? from Sth Africa
From: Valda Fraser, November 9, 1999