3U8 



without of a lighter or darker reddish rose-colour, nearly smooth, 

 often with obsolete radiating lines, covered when fresh with a very 

 thin epidermis; one valve convex, the other flat; ventral edge 

 nearly straight or subretuse in the middle, rising at the extremities 

 and particidarly posteriorly ; anterior side rather the shorter, its 

 extremity rounded, its dorsal edge convex but scarcely sloping ; 

 posterior side very obtusely acuminated, the dorsal edge at first 

 refuse and little sloping, then moderately sloping and convex; 

 fold broad and obtuse ; flexure nearly obsolete ; ligament large. 

 Tumbez, Peru ; soft sandy mud, five fathoms (Cuming) . 



168. Tellina nitida (pi. lix. f. ]01.) Foil, Test. Sic. vol. i. 

 1. 15. f. 2, 3, 4 ; Lam. no. 28 ; Pliilip. En. Moll. Sic. vol. i. p. 27 ; 

 Hani. Des. Cat. p. 64. sup. t. 14. f. 4. 



T. testa oblonga, valde compressa, a?quilaterali, satis solida, ni- 

 tida, pallide carnea aut fulva; conceutrice striata, striis tenuissi- 

 mis, confertis, sed altera in valvula postice magis remotis alteraque 

 in valvula postice obsoletis; margine ventrali medio subrecto; dor- 

 sali antice couvexo et subdeclivi, postice declivi et subrecto ; latere 

 antico rotundato, postico cuneiformi ; flexura nulla. 



Oblong, much compressed, equilateral or nearly so, tolerably 

 strong, very glossy, pale flesh-coloured or fulvous, within of a 

 deeper hue, with fine regular and close concentric striae, which at 

 the posterior end of one valve are quite obsolete, and in the other 

 are there replaced by stronger, more distant, and subimbricated 

 ones; ventral edge nearly straight in the middle; anterior side 

 rounded, its dorsal edge convex, and but moderately sloping ; hin- 

 der side wedge-shaped, ligamental edge nearly straight ; no flexure. 



Mediterranean. 



169. Tellina Souleyeti (pi. lix. f. 111.) Kanley, Zool. Proc. 

 1844. , , :--.-.. ^ -..,, . , , :...'.. 



T. testa oblonga, tenuiuscula, convexo-depressa, extus intusque 

 albida, IseWgata; margine ventrali convexiusculo; dorsali antice con- 

 vexiusculo et subdeclivi, postice recto aut subretuso et valde de- 

 cHvi ; flexura costaque umbonali distinctis ; latere antico longiore, 

 rotundato; extremitate postica subrostrata; ligamento infosso; 

 natibus acutis. 



Oblong, tolerably convex, nearly equilateral, but rather longer 

 in front, of a rather dull white, not very thick, and quite smooth; the 

 ventral edge more or less convex ; the flexure as well as the umbo- 

 nal ridge quite distinct ; dorsal edge moderately convex and scarcely 

 sloping in front, nearly straight or slightly retuse beliind ; anterior 



