Dear Sergio, couldn't it be the shell of a fresh water snail? Sinistrality, the wide and elongated aperture, the callous columellar area suggested this to me. Best regards, Paolo At 10.29 29/03/2012 +0000, you wrote: >Could you please help me to identify this species? It was collected at >around 15m depth, in the Azores (Faial Island). > >I attach protoconch and shell pictures. > >Thank you! > >http://dl.dropbox.com/u/46058447/Gastropoda%20n%20id%20EIA%20Faial%2015%20m%20Sup%20232-1%20vista%20geral.TIF ><http://webmail.uac.pt/exchweb/bin/redir.asp?URL=http://dl.dropbox.com/u/46058447/Gastropoda%2520n%2520id%2520EIA%2520Faial%252015%2520m%2520Sup%2520232-1%2520vista%2520geral.TIF> > > >http://dl.dropbox.com/u/46058447/Gastropoda%20n%20id%20EIA%20Faial%2015%20m%20Sup%20232-1%20protoconcha%20frontal%20200x.TIF ><http://webmail.uac.pt/exchweb/bin/redir.asp?URL=http://dl.dropbox.com/u/46058447/Gastropoda%2520n%2520id%2520EIA%2520Faial%252015%2520m%2520Sup%2520232-1%2520protoconcha%2520frontal%2520200x.TIF> > > >http://dl.dropbox.com/u/46058447/Gastropoda%20n%20id%20EIA%20Faial%2015%20m%20Sup%20232-1%20protoconcha%20frontal.TIF ><http://webmail.uac.pt/exchweb/bin/redir.asp?URL=http://dl.dropbox.com/u/46058447/Gastropoda%2520n%2520id%2520EIA%2520Faial%252015%2520m%2520Sup%2520232-1%2520protoconcha%2520frontal.TIF> > > >http://dl.dropbox.com/u/46058447/Gastropoda%20n%20id%20EIA%20Faial%2015%20m%20Sup%20232-1%20protoconcha%20lateral.TIF ><http://webmail.uac.pt/exchweb/bin/redir.asp?URL=http://dl.dropbox.com/u/46058447/Gastropoda%2520n%2520id%2520EIA%2520Faial%252015%2520m%2520Sup%2520232-1%2520protoconcha%2520lateral.TIF> > > >---------------------------------------------------------------------- >[log in to unmask] - a forum for informal discussions on molluscs >To leave this list, click on the following web link: >http://listserv.uga.edu/cgi-bin/wa?SUBED1nch-l&A Type your email address >and name in the appropriate box and >click leave the list. >---------------------------------------------------------------------- Paolo G. ALBANO Bologna, ITALY ---------------------------------------------------------------------- [log in to unmask] - a forum for informal discussions on molluscs To leave this list, click on the following web link: http://listserv.uga.edu/cgi-bin/wa?SUBED1=conch-l&A=1 Type your email address and name in the appropriate box and click leave the list. ----------------------------------------------------------------------