Class VI. SHELLS. 101 



A fpecies feldom exceeding two inches and a 

 quarter in length; the breadth nearly the fame. 

 A thin fhell, generally of a fine pale red. 

 Tab. lx. fig. 6$. 



Lin. Syft. 1 146. No. 199. Lift. Conch, tab. 178. Jig. 15. Varius 



64. Varie- 

 gated. 



P. with about thirty echinated imbricated rays ; 

 (hells almoft equally convex ; one ear vaftly larger 

 than the other. 



General length two inches and a half % breadth 

 a little lefs. 



Color, a fordid red mixed with white. 



Often found in oyfter-beds, and dredged up 

 with them. 



Tab. lxi t fig. 6 *, 



Lin. Syft. 1146. No. 200. Pufio ? 



Petten minimus anguftior inequalis £eih et afper, Sec. 65. Writh 



Lift. Angl. p. 1 86. tab. v. Jig. 31. gp. 



P. with above forty fmall rays \ with unequal 

 ears ; the furface always irregularly waved or de- 

 formed, as if by fome accident \ but this appear- 

 ance regularly maintained. 

 , Length about two inches. 

 Colors commonly very brilliant reds* 

 Tab. Ixi. Jig, 6$, 



H 2 -P. with 



