Cl. VI. MACTRA. FLJT-SIDED COCKLE. 193 



Found only by Miss Pocock ; Hale sands, 

 Cornwall. 



Lin. Tr. vili. 6g. Cardium edentula. Mont. 3. radiata. 



Test. Br. Sup. 2g. 



* M. with a thin brittle shell, somewhat trian- 

 gular, compressed, whitish, radiated, most de- 

 licately striated ; diameter two inches. 

 Found at Portsmouth after a storm. 



Lin. Syst. 1126. No. 99. 



Lin. Tr. viii. 6g, 



4. STULTO. 



Gm. Lin. 3258. 

 Telllna radiata. Br. Zool. 



Mont. Test. Br. 94. 



RUM. 



simpleton's. 



iv. 87. 







M. with very convex shells of a faint ash-color, 



radiated with red, tinged within with a faint 



purple ; breadth an inch and a half. Tab. lii. 



Jig. 1. . ■ . ... . '_ 



Lin. Syst. 11 26. No. 100. 



List. Angl. tab. iv. 



5. SOLIDA 



Gm. Lin. 325Q. 



fig- 24. 



strong. 



Faun. Suec. No. 2140. 



Lin. Tr. viii. 70. 

 Mont. Test. Br. 92. 





M. with very strong shells ; in a live state, 

 smooth, white, glossy, and marked M'ith a few 

 transverse strue. Tab. Iv. Jig. Q. 



In dead shells, the stri<£ appear like high 

 ribs. Tab. liv. Jig. 3. 



VOL. IV. o 



