trochidae specie

[diocrisseashells1000]

Hello there,
this is a beach shell found in Philippines, Size is 16 mm. i havent seen the features of this in any sight i've search, could you help me id this and am i correct on the family ( trochidae ) ?

here is the link :    <!-- m --><a class="postlink" href="http://www.flickr.com/photos/63645283@N06/sets/72157627540242282/">http://www.flickr.com/photos/63645283@N ... 540242282/</a><!-- m -->

kind regard,
                    Diocris.