> We are all aware of the single tooth at the anterior of
> the aperture of Opeatostoma pseudodon.  BUT, I just
> uncovered a shell in the club collection that had an
> Acanthina angelica label in it.  And it bears the general
> shape of an Acanthina, but there is a false tooth just
> like that of Opeatostoma.  Are there any other species in
> the genus Opeatostoma?  This is obviously NOT that
> species, as it is a mottled brown, nodulose shell.
>
> What gives?  This was a real surprise to me.
There are several toothed shells in the Americas: Acanthinas,
Opeatostoma, Leucozonia nassa and Ceratostoma foliatum come to mind.
presumably they all eat barnacles...

Peggy
>
           Peggy Williams: shell collecting trips
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