Low Ri's picture

P1030332

Observed: 24th January 2011 By: Low Ri
P1030332
P1030751
Description:

4cm length x 2.5 width. Off white / yellowish brown bivalve shell, pretty solid. Lots of defined concentric ridges and some fine radiating lines with light brown patterns around the edges.

Identifications
Species interactions

No interactions present.

Comments

Mike Kendall's picture

Which species

I think Becky H is right to question the species, although the genus is undoubtedly correct. I have therefore removed my agreement with the original ID.

Checking with the literature, a major difference between V. decussatus and V. senegalensis is in the extent of the palial sinus and the degree to which it merges with the palial line. That means you have to see inside the shell before you can separate them; you can't do that on the image. The grooves and ridges are more strongly defined in V.decussatus than V.senegalensis. On the specimen in the picture both lines and ridges are quite clear and, while that suggests the original diagnosis may have been correct, confirmation isn't possible.

Mike Kendall

Low Ri's picture

hope extra photo helps

thanks!

BeckyH's picture

Thanks Mike! I find bivalves

Thanks Mike! I find bivalves soooo confusing! So many descriptions seem to fit a number of species, like here ...

dejayM's picture

Names and links

There are some serious issues with the naming of the Pullet Carpet Shell.
iSpot's preferred name is Venerupis senegalensis but it also accepts Venerupis saxatilis or Venerupis pullastra.
None of these seem acceptable to the world authority of WoRMS**, which clearly only sees Venerupis corrugata as being correct. Not for the first time I have discovered that the 'correct' name is not in the UKSI, nor CoL, nor even the SANBI dictionary.
Dave Fenwick knows a bit about Marines, he keeps his options wide with Venerupis corrugata var. saxatilis syn. V. s. var. saxatilis.
see http://www.aphotomarine.com/bivalve_venerupis_senegalensis_var_saxatilis...
The National Museum of Wales, to where should all go for some confirmation, uses the old name Tapes corrugata.
http://naturalhistory.museumwales.ac.uk/britishbivalves/browserecord.php...
There are 17 other synonyms to choose from, so what will it be next year?

So now see this http://www.ispotnature.org/node/632356

WoRMS**
http://www.marinespecies.org/aphia.php?p=taxdetails&id=138998