372 



SHELLS AND SHELL-FISH. 



PART 



SUB-FAM. VENERIN.E. 



Animal with the two siphons shorter, and sometimes 

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

 minent. 



COBBIS Lam. Shell transversely roundish ; bosses curved 

 in different directions ; cardinal teeth -J ; lateral re- 

 mote, short, -f . 



C. fimbriata. Sow. Gen. (fig. 120. b, i.) 



VENUS Linn. Animal with the two siphons shorter than 

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

 close to the cardinal teeth, -f ; lateral teeth approxi- 

 mate, and diverging from the summit of the bosses ; 

 surface often rough, (fig. \.IQ. c.) 

 V. purpura. En. Meth. 278. f. 1 . rugosa. Ib. 273. f. 4. 



Crassina Lam.* Shell solid, suborbicular; bosses nearly 

 central. Cardinal teeth |, unequal in one valve; 

 lateral teeth none. 



C. Danmoniensis. (fig. 120. e.) 



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

 worked out. 



