STRIGILLA. 399 



dispar, Conr. planata, Linn. 



Gaimardi, Desk. rufescens, Chem. 



glabrella, Desk. scalpellum, Hartley. 



Japonica, Desk. Souleyeti, Hartley. 



lutea, Gray. strigosa, Gmel. 



micaus, Hartley. tenta, Say. 



miles, Hanley. textilis, Desk. 

 nitida, Poll. 



Sub-gen. metis, H. and A. Adams. 



Shell sub-orbicular, compressed, surface of valves sulcate ; 

 hinder ilexuosity sub-median. Lateral teeth wanting. 



Meyeri, Phil. 



Genus strigilla, Turton. 



Shell orbicular, convex, surface of valves divaricately 

 striated; posterior flexure obsolete. Hinge with a small 

 anterior, and a large bifid cardinal tooth in the right valve, 

 and a single cardinal tooth in the left valve; lateral teeth 

 two in each valve. Pallial impression with a deep, angular, 

 siphonal inflection. 



Ex. S. carnaria, Linnaus, pi. 104, fig. 1, 1, a. 



This genus is readily recognised by its obliquely- sculp- 

 tured valves and its orbicular shape. 



Species of Strigilla. 



carnaria, Linn. Rombergii, March. 



cicercula, Phil. Senegalensis, Hanley. 



flexuosa, Say. sincera, Hanley. 



obliquilineata, Hanley. splendida, Anton. 

 piriformis, Linn. 



