Class VI. SHELLS. 97 



V. with deprelTed rhomboidal fnells, marked with Rhomboideu 

 concentric and very neat ftria, of a pale brown *5* D> Ii0 

 color variegated. 



Length three quarters of an inch •, breadth an 

 inch and three quarters. 



V. with ovated fhells, ftriated elegantly from hinge Ovata. 

 to margin, and (lightly ftriated tranfverfely. s6, ° VAL * 



Size of a horfe-beam 



Tab. Ivi. fig, 56. 



XI, Its animal a Tethys ? ARCA. 



Shell bivalve equivalve. 



Teeth of the hinge numerous, inferted between 

 each other. 



Lin. Syji. 1140. No. 1 68. Borlafe Nat. Hifi. Cornw t Tortuofa. 



tab. xxviii.7%. 15, 16. c 7 .Di*^ 



Lift. Conch, tab. 368. TOUTED. 

 Mytilus Mat thiol, apud Diofcor. lib. ii. c. 5. /, 301. 



A. with a rhomboid fhell, deeply ftriated from 

 the apex to the edges. 



Inhabits Cornwall. Found alfo near Weymouth. 



Tab. lviii. fig. $y t 



Vol. IV. H Lin. 



