52 lANTlIINA. 



11. UMBiLiCATA, f. 22, D^Orhiguy. — Testa parva, angu- 

 latim subglobosa, laevis, anfractii ultimo medio subacute 

 angulato, post columellam subumbilicato ; columella rectius- 

 cula, infra acuminata. — An interesting minute shell, in form 

 something between the angular and globose shells of the 

 genus. A slight umbilical depression is observable behind 

 the columella, which terminates in an acute angle. 



