184 TELLINA. 



Length about an inch and a quarter; breadth rather 

 more. 



Inhabits the European seas, and has been found 

 abundantly, by Mr. Montagu, on the coast of Cornwall, 

 particularly at Falmouth ; it is also to be met with on 

 parts of the coast of South Devon, and in Carmarthen- 

 shire, about Laugharne. 



This shell was first figured by Petiver, under the 

 name of " Thread-girdled White Cockle." It is the 

 Venus borealis of Donovan, 



ROUGH TELLEN. 



72. Tellina scabra. T. testa subquadrata, alba, tumida, antice infiexa, 

 transversim striata, rugosa ; cardinis dente primario unico. 



Shell squarish, white, tumid, inflected before, and transversely striated ; 

 hinge with a single primary tooth. 



Chem. Conch. 11. pi. 199. f. 1943, 1944. 



This species resembles the T. Radula in having a 

 rough, transversely striated exterior, and a similar fur- 

 row behind ; but it differs in having but one primary 

 tooth, and in being provided with two strong lateral 

 teeth. It is smooth, and white, within. Length about 

 an inch and a half; breadth the same. 



