CONCUR UA—DiTHYRA. 29. 119 



distinction which is an artificial as well as a natural arrangement 

 is worthy of consideration. 



Strigilla tesld subglobosd sitbcequilaterali, striis longitudina- P'^'g"""* 



libus obliquis hinc acutangulosis. 

 Shell somewhat globular and nearly equilateral, with oblique 



longitudinal striae which on one side form acute angles. 

 Tellina pisiformis. Linn. Syst. Nat. p. 1120, 



Gmelin, Syst. p. 3211. 



Turton, Linn. Syst. iv. p. 196. 



IFoorf, Conch, p. 194. 



Dillwyn, Descript. Catal. p. 102. 



Turton, Conch. Diet. p. 178. 

 Cardium discors. Montagu, Test. Brit. p. 84. 



Linn. Trans, viii. p. 67. 



Turton, British Fauna, p. 153. 



Pennant, Brit. Zool. iv. p. 190. 



Wood, Conch, p, 214, 

 A single specimen of this rare shell was found by Montagu, in 

 Falmouth harbour. 



Shell nearly globular, glossy wliite, with numerous striae which 

 on the anterior side bend in acute angles towards the hinge: 

 beaks small, nearly central, inclining a little to one side : hinge 

 with a single plain tooth in one valve closing between two in the 

 other, one of which is small ; the lateral teeth remote and pro- 

 minent. 



Strigilla testa orhiculari subcBquilaterali, striis arcuatis 'l'™'<=a'»« 

 utrinque rectangidosis. 



