living specimen in dorsal view, colour photo
shell in lateral view
line drawings of body without shell and in details in ventral view
anterior detail of shell with caudal mark, micro photo
preserved specimen from lateral, micro photo
drawing of (left) recent juvenile from ventral and (right) fossil juvenile
closing, drawing of two aberrantly shaped caudal membranes
drawing of specimen in lateral view and detail of the posterior shell part
radula, with three rows of teeth
SEM photo of adult shell
SEM photo of growth line and sculpture
distribution map