﻿I^EGUMINAIA 



445 



I'he <>-eims Leguminaia contains a few species of southeast 

 Europe and Asia Minor that seem to be tolerably closely re- 

 lated, being generally oblong, of moderate solidity and infla- 

 tion with a single smooth tooth in each valve. The laterals 

 are vestigial or wanting. The group seems to be rather 

 closely related to Gabillotia, but differs remarkably in the 

 form of the shell. The shells of Gabillotia gape decidedly, 

 while those of Lcguminaia do not and the teeth are higher, 

 more triangular and compressed. 



Key to species op Lecuminaia. 

 Shell rayed. 

 Shell rayless. 

 Elongated. 



Compressed, epidermis yellow. 



Epidermis brownish. Shell thin. 

 Convex, brownish, with strong teeth. 

 Teeth feeble. 

 Epidermis blackish. 

 Thin, strongly sulcate. 

 Short elliptical or rhomboid. 



L,. michonii. 



L. zvlieatleyi. 



L. iiniopsis. 



L. mardinensis. 



L. tripolitana. 



L,. saulcyi. 



L. michonii. 



L. locardi. 



Section Leguminaia s. s. 

 Shell somewhat solid, elliptical to rhomboid; beaks rather 

 full ; teeth strong, with sometimes a slight secondary tooth m 

 the left valve, well in front. 



Group of Leguminaia mardinensis. 



Characters as in the subgenus. 

 Leguminaia mardinensis (Lea). 



Shell oblong, somewhat rhomboid, inequilateral, subsolid, 

 convex ; beaks slightly elevated but not inflated, rather sharp, 

 their sculpture consisting of fine, broken, more or less doubly 

 looped ridges; posterior ridge low, ending behind in a wide, 

 rounded point near the base of the shell; basal line incurved; 



