^83 



T. test^ oblongo-ovali, tenui, insequilateralij compressiuscula, 

 nitida, intus extusque Candida, submargaritacea, sublaevigata; mar- 

 gine ventrali convexiusculo ; dorsali antice subrecto paululumque 

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

 rotundato; extremitate postica obtuse cuneiformi; flexura obso- 

 lete ; ligamento prominulo ; dente laterali distincto, approximato. 



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

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

 dehcate and almost obsolete concentric strise; ventral edge mode- 

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

 slightly convex and decidedly sloping beliind ; anterior side pro- 

 duced and rounded; posterior extremity very obtusely wedge- 

 shaped; flexure obsolete ; ligament shghtly prominent ; lateral tooth 

 distinct and approximate. 



North America. 



- 115. Tellina incaenata (pi. Ix. f. 142. pi. Ixii. f. 265.) 

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

 pressa Zatn. no. 22. ; Wood Gen. Con. t. 45. f. 3; Pliilip. En. 

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

 Brit. p. 105. t. 8. f. 6 ; T. squaHda 3£ont. Test. Brit. p. 56. 



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

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

 centrice sub striata, striis altera in valvula obsoletis ; margine ven- 

 trali convexo ; dorsali antice convexiusculo paululumque (in juni- 

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

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

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

 ribus superficiei intemse plerumque saturatioribus ; dente laterali 

 subapproximato. 



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 chiefly,) 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 Httle sloping ; posterior ex- 

 tremity angulated and subrostrated ; the hgamental edge straight- 

 ish or subretuse and moderately sloping ; hgameut sunken ; fold 

 and flexure tolerably distinct ; internal colouring usually darker ; 

 lateral tooth subapproximate. 

 Britain, and Mediterranean. 



116. Tellina Valtonis (pi. Ivii. f. 68.) Hanlej/, Zool. Proc. 

 1844. 



