283 



T. testa oblongo-ovali, tenui, insequilaterali, compressiuscula, 

 nitida, intus extusque Candida, submargaritacea, sub laevigata; mar- 

 gine ventrah convexiusculo ; dorsah antice subrecto paululumque 

 dechvi, postice declivi et vix convexiusculo ; latere antico producto, 

 rotundato; extremitate postica, obtuse cuneiformi; flexura obso- 

 lete ; ligamento prominulo ; dente laterali distincto, approximato. 



Oblong-oval, thin, inequilateral, rather compressed, and both 

 within and without of a nacreous white, nearly smooth or with 

 delicate and almost obsolete concentric striae ; ventral edge mode- 

 rately convex ; dorsal straightish and but little sloping in front, 

 slightly convex and decidedly sloping behind ; anterior side pro- 

 duced and rounded; posterior extremity very obtusely wedge- 

 shaped; flexure obsolete ; ligament slightly prominent ; lateral tooth 

 distinct and approximate. 



North America. 



115. Tellina incarnata (pi. fx. f. 142. pi. lxvi. f. 265.) 

 Lin. Syst. 1118; (from his collection); Pob. 1. t. 15. f. 1.; T de- 

 pressa Lam. no. 22. ; Wood Gen. Con. t. 45. f. 3; Philip. En. 

 Moll. Sic. 1. p. 27 ; Hani. Des. Cat. p. 63. t. 4. f. 48 ; Turt. Biv. 

 Brit. p. 105. t, 8. f. 6; T. squalida Mont. Test. Brit. p. 56. 



T. testa oblongo-ovali, subtenui aut solidiuscula, subcompressa, 

 subffiquilaterali, subnitida, albido-aurantia and roseo-aurantia, con- 

 centrice substriata, striis altera in valvula obsoletis ; margine ven- 

 trab convexo ; dorsali antice convexiusculo paululumque (in juni- 

 oribus vix minime) decbvi, postice subrecto aut subretuso et sub- 

 decbvi ; latere antico longiore, rotundato ; extremitate antica, an- 

 gulata subrostrata ; flexura satis distincta ; bgamento infosso ; colo- 

 ribus superficiei internaj plermnque saturatioribus ; dente laterali 

 subajjproximato. 



Oblong-oval, rather thin or but moderately strong, somewhat 

 compressed, subequilateral, more or less glossy, of a pale orange or 

 deep flesh colour, with (in the young chieHy,) two whitish approxi- 

 mate posterior rays, concentrically substriated in one of the valves ; 

 ventral edge convex ; anterior side rounded and rather the longer 

 its dorsal edge slightly convex and but little sloping ; posterior ex- 

 tremity angulated and subrostrated ; the bgamental edge straight- 

 ish or subretuse and moderately sloping ; ligament sunken ; fold 

 and flexure tolerably distinct ; internal colouring usually darker ; 

 lateral tooth subapproximate. 



Britain, and Mediterranean. 



116. Tellina Valtonis (pLlvii. f. 68.) Ilanley, Zool. Proc 

 1814. 



