Snails from West Africa

[rafa]

Hi,
I'm sending two pictures. The first is a snail from Sikasso Mali
and the secon one is from Uagadugu (Butkina Fhaso), I found it in a River Niger tributary.
Could somebody help to ID?
Thanks in advance.
Rafa.
<a href="http://www.badongo.com/pic/5204624" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/5204624">http://www.badongo.com/pic/5204624</a><!-- m --></a>
<a href="http://www.badongo.com/pic/5204631" target="_blank"><!-- m --><a class="postlink" href="http://www.badongo.com/pic/5204631">http://www.badongo.com/pic/5204631</a><!-- m --></a>

[paul monfils]

The snail looks like an immature Achatina.  I'm not sure of the species, but will try to look it up this evening, when I have access to my books.  Can't help you with the fresh water bivalve.  <span class="petit">--Last edited by Paul Monfils on 2009-02-02 16:42:08 --</span>

[dave r]

For the bivalve try this website
<a href="http://www.mkohl1.net/Bivalves.html" target="_blank"><!-- m --><a class="postlink" href="http://www.mkohl1.net/Bivalves.html">http://www.mkohl1.net/Bivalves.html</a><!-- m --></a>
I have found it very useful for freshwater mussel identification.
Dave