372 



SHELLS AND SHELL-FISfll. 



T-ART H- 



SuB-FAM. VENERINyE. 



Animal with the two siphons shorter, and sometimes 

 united ; shell thick, strong, and ventricose ; bosses pro- 

 minent. 



c^> 



CoRBis Lam. Shell transversely roundish ; bosses curved 

 in different directions ; cardinal teeth ^ ; lateral re- 

 mote, short, -|. 



C. fimbriata. Sow. Gen. {fg. 120. h,i.) 



Venus Z/mw. Animal with the two siphons shorter than 

 its shell ; shell nearly round, or oval ; lateral teeth 

 close to the cardinal teeth, 4 , lateral teeth approxi- 

 mate, and diverging from the summit of the bosses ; 

 surface often rough, {fig. 119- ^0 

 V. purpura. En. Meth. 278. f. 1 . rugosa. lb. 27S. f. 4. 



Crassina Lam.* Shell solid, suborbicular; bosses nearly 

 central. Cardinal teeth 4? unequal in one valve ; 

 lateral teeth none. 



C. Danmoniensis. {fig. 120. e.) 



* The other subgenera of Tellina, Venus, Cytherea, and Dotiax, are not 

 ■worked out. 



