75 



triangular, yellowish white, with numerous fine laminar 

 equidistant slightly reflected cencentric ridges, which 

 anteriorly become confluent in pairs extending beyond 

 the edges so as to form a fringe of short obtuse spines, 

 which turn back and form a cavity for the cartilage 

 beaks small, subcentral, lunule long and narrow : a 

 single cardinal and two lateral teeth in one valve, two 

 cardinal in the other, the lateral obscure, i. W. Coasts, 

 rare. 



L. CARNARIA. Lam. F. p. 442. TELLINA C. 

 Lin. 1119. Ch.f. 126. Mont. p. 73. Don. t. 47. 

 Lin. T.S.p. 57. Dor. Cat. p. 31. t. 5. /. 6. 

 Wood. G. C. p. 189. t. 40. /. 4, 5.D. p. 100. 

 Turt. C. D.p. 177. STRIGILLA C. Turt. B. p. 118. 

 t. 7.f. 15. Rounded oval, inequilateral, more or less 

 tinged with rose-color, rather compressed, marked in 

 the middle with oblique longitudinal striae, which, at 

 at the shorter end, are curved and flexuous, and at the 

 produced end with straight ones, which meet the ob- 

 lique ones and fonn angles ; beaks near one end : hinge 

 with two cardinal (one bifid) and a lateral tooth in each 

 valve. |. W. Coasts. 



L. PISIFORMIS. Lin. 1120. F. p. 442. Wood. 

 G.C.p. 194. D. p. 102. Turt. C. D. p. 178. 

 D 2 



