(2004)
Volume
38
Part
4
Page from
355
Cystiscus viader sp.nov. is described from the Mascarene Islands. The external morphology and the radula are presented and compared with those of related species. Information on its habitat, distribution and behaviour is given. The features shared by Cystiscus species are discussed and some criteria usable for subgeneric attributions are tentatively suggested.
Keywords
Gastropoda
Cystiscus
taxonomy
anatomy
diversity
Mascarene Islands
Indo-Pacfic.