Class VI. MYTILUS. MUSSEL, 



Lin.Tr.y'm. \12.^ Mont. Test. Br. \73, 13. STRIA- 



TUS. 



* M. with a striated shell ; beaks protruding ; 

 white, pellucid; minute; inhabits the sea. 

 Found at Reculver and Sandzvich. 



Mont. Test. Br. 169. id. Sup. 65. t. 26. /. 4. 14. discre=. 



PAKSo 



* M. with a very flat, pellucid, brittle, suboval 

 shell, with eight or nine distinct ribs. 



Upon the western shores of England and 

 Scotland. 



Gm. Lin. 3362. Sow. Br. Misc. tah. 16. 15. stagka- 



Mont. Test. Br. Sup. 68. ^^s, 



* M. shell oval, somewhat plane, ribbed trans- 

 verselv. 



■ Mont. Test. Br. Sup. 69. I6. dectts- 



SATUS. 



^' M. with a shell longitudinally ovate, thin, pel- 

 lucid ; delicately decussated ; the umbo at the 

 smaller end ; sides equal : diameter about one 

 eighth of an inch. 

 Scottish coast. 



VOL. IV, - R 



