178 TELLINA. 



SULCATED TELLEN. 

 PL 47. /. 1. Mrs. Mawe. 



63. Tellina sulcata. T. testa subovali, plana, transversim sulcata, an- 

 terius angulato-inflexa ; cardinis dentibus primariis duobus bifidis, la- 

 teralibus prominulis. 



Shell somewhat oval, flat, transversely sulcated, angular and inflected 

 before ; primary teeth two, cleft ; lateral teeth prominent. 



A flat, straw-coloured shell, transversely grooved, 

 rounded behind, and produced before into an angular, 

 inflected, undulated beak ; margins plain. Inside straw- 

 coloured, the same as without ; hinge with two cleft 

 teeth in one valve, and one in the other. Length rather 

 less than an inch ; breadth about an inch and three- 

 eighths. 



This shell resembles the T. crystallina of Chemnitz, 

 Conch. 11. pi. 199. f. 1947, 1948, but differs in the co- 

 lour, and shape of the beak. Its country is unknown. 



ANGULAR TELLEN. 



64. Tellina angulosa. T. testa ovali, planiuscula, transversim striata, 

 antrorsum inflexo-angulata ; cardinis dente primario bifido ; lateralibus 

 remotis. Linn. Gmel. p. 3244. 



Shell oval, flattish, transversely striated, the fore part angularly inflected ; 



hinge with a cleft primary tooth ; lateral teeth remote. 

 Chem. Conch. 10. pi. 170. f. 1654, 1655. 



This shell inhabits America, and is about an inch 

 long, and two inches broad. It resembles the preced- 

 ing species in some particulars, but is a different shell. 



