Help for ID plz

[helmetapointe]

Happy new year to everybody  ! ! !

This nice dark black shells, i found on rocks in south india.
[b]10 to 15 mm[/b]

[img width=360 height=480]http://img15.hostingpics.net/pics/262322P1240263.jpg[/img]

thx for help

( P.S. I offer pcs. to exchange )

[wolfi]

Hi,
reminds me of Planaxis (Planaxidae), perhaps near to Planaxis niger Quoy & Gaimard (Indo-pacific). Is that possible?
Kind regards: wolf

[helmetapointe]

thank you !

planaxis niger seems to be correct.