Class VI. SOLEX. RAZOR-SHELL. 173 



Lin. Tr. viii. 44. Mont. Test. Br. 49. 5. pelluci. 



DUS. 



pellucid. 



S. sub-arcuated and sub-oval ; with the hinge 

 consisting of a sharp double tooth on one side, 

 receiving a single one from the opposite, with a 

 process in each shell, pointing towards the car- 

 tilage of the hinge. Shell fragile, pellucid j 

 about an inch broad. 



Inhabits Red JFharf, Angleseij.^ Tab. xlix. 



Lin. Syst. 1114- Gm. Zz?z. TV. viil. 45. 6. legumejt. 



Lin. 3224. List. Conch. Mont. Test. Br. 50. sub-oval, 



tal. 420. 



S. with a strait sub-oval shell ; with teeth ex- 

 actly resembling those of the last, furnished 

 likewise with similar processes ; one end is 

 somewhat broader than the other. Usual 

 breadth about two inches and an half. Shell 

 sub-pellucid, radiated from the hinge to the 

 margin. 



Inhabits the same place. Tab. xlix. fig. 3. 



* Discovered about the year 1770, by the Rev. Hugh Davies, 

 on the coast of EJionydd, Caernarvonshire, and afterwards at 

 lied JFharf. Ed. 



