l68 Mr. William Wood's Obfervations on the 



Tab. XVIL Fig. 9, lo. - 



The Venus exoleta is provided with three large teeth 

 in each valve, one of which is double. This fhell 

 has the rudiment of a fmall tooth feated at the 

 bafe of one of the largeft, on the fide next the cor- 

 diform depreflion, and in the valve oppofite to that 

 which contains the lateral double tooth. 



decujfata' Linn, Syft. Nat, cd. GmeL i, p. 3294. Da Cojl. Br, 



Conch, p. 202. /. 14./. 4. 4. Llji. Conch, t, 423. /i 271. 

 Gault. Teji. t. 85. / L. 



Tab. XVII. Fig. 11, 12. 

 This fhell has two grooved teeth in one valve, befides 

 a plain one. Thefe teeth receive another between 

 them, from the oppofite valve, which is likewife 

 grooved, and has for its companions a fmall plain 

 tooth on one fide, and the appearance of a tooth 

 en the other. Young (hells have three teeth in 

 each valve. The intermediate one is conftantly 

 cleft, the others plain ; at leafi, in all the fpecimens 

 which 1 have met with. 



crafa, Linn. Syji. Nat. ed. Gmel i . /. 32 88. Penn . Br. Zool. No. 28. 



/. 48. /. 28. Da Coji. Br. Conch, p. 194. /. 13. /l 4. 

 right hand. Lift, Conch, t. 299. f. 1 2,^, 



Tab. XVIf. Fig. 15, 16. 



Although we have high authority for placing this 



ihell amono- the Veneres^ vet we find it in the Britifh 



Zoology ranked among the T€llince\ and, indeed, 



5 if 



