96 



UNIVALVES. — STROMBUS, 



Acicula. 



Fasciolatuni. 



Niveuni. 



Mucroiiatum. 



Digitelliis. 



Obliquum. 



Chalybeum. 



Fluviatile. 



Radiatiiin. 



Lividulum. 



Etlenliiliiui. 



Pugio. 



Canaliculatum. 



Varicosum. 



Cuspid at um. 



Ciiiereum. 



Virgineuni. 



Proximatum. 



Moiiile. 



Cingulatuni. 



Geiniiuim. 



*ObtusLduin. 



STROMBUS.-WiNOED or Claw-Shell. 



Animal— a Limax : Shell univalve, spiral; aperture ntuch 

 dilated; the lip exj)andin()y and produced into a groove 

 leaning to the left. 



The distinguishing character of this genus, of which there 

 are fifty-three species, consists in the position of its beak. 



as the younger shells of the genus are sometimes wholly 

 destitute of any beak whatsoever, a confusion with many 

 otiier genera has often taken place. 



Almost the whole of this genus seem to have a propen- 

 sity to extend their outer lip, either into the form of an 

 expanded wing, (hence called alatte or winged shells), 

 or to continue it, in distinct situations, into long and 



