Jose H. Leal wrote:
>
> >At the moment I don't know this species. But genus Folinia is
> >a Pyramidellidae and Alvania and Alvinia are Rissoidae.
> >This is what I can answer in the moment.
>
> Dear Helmut and Jorge,
>
> The genus Folinia also belongs in the Rissoidae. An example of a western
> Atlantic species is Folinia bermudezi (Aguayo & Rehder, 1936), an elegant
> micromollusk (about 5 mm) first described from Cuba, but also found in the
> Fl Keys, Dry Tortugas, and Brazil. Some authors question the validity of
> the genus, opting for treatment at subgeneric level under Rissoina.
>
> Regards,
>
> Jose
> __________________________________________________________________________
> Jose H. Leal, Ph.D.
> Director, The Bailey-Matthews Shell Museum
> Editor-in-chief, THE NAUTILUS
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> http://www.uwp.edu/academic/biology/bmsm/bm_shell.htm
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> Sanibel, FL 33957 USA
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Dear Dr. Josi
 
Thanks for your note, I supose Folinia is in the Rossoidae, as you say.
 
The photo of Folinia costata (as specie) shows a small shell,
purple-violet collor, round mouth, high vertical ornament,
tuberculose.
Somebody collect microshells of this genera ?
 
Thanks (gracias) for your note!
 
Regards
 
Jorge Mendez
Mexico City