Yes Harry, I agree it's not a Raphitomid.
I discover the genus Thala in Costellariidae (Paul Callomon was right
when he proposed first to check this family). So for this white shell,
maybe it 's a juvenile of Thala cernica (Sowerby II, 1874). And the
purple shells belong to Kermia pumila, OK.
Olivier
Le 03/07/2015 00:05, Harry Lee a écrit :
> Dear Olivier,
>
> I think it's possible that your Reunion shell is not a Kermia or even
> a Raphitomid.
>
> Are we dealing with homoplasy (convergent teleoconch morphology, e.g.,
> <https://listserv.uga.edu/cgi-bin/wa?A2=ind1401A&L=CONCH-L&P=R7028&X=93EEC005C692EDB882&Y=shells%40hglee.com>)
> or didymy (lecithotrophy/planktotrophy conversion, e.g.,
> <https://listserv.uga.edu/cgi-bin/wa?A2=ind0310B&L=CONCH-L&P=R4488&X=93EEC005C692EDB882&Y=shells%40hglee.com>)
> here?
>
> A third alternative: I'm all wet!
>
> Harry
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