308 



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 particularly 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. hx. f. 101.) Poll, Test. Sic. vol. i. 

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

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



T. testa oblonga, valde compressa, fequilaterali, satis sohda, ni- 

 tida, pallide carnea aut fiJva; concentrice striata, striis tenuissi- 

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

 in valvula postice obsoletis; margine ventrali medio sub recto; dor- 

 saK antice convexo 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 reg-ular and close concentric strise, 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.) KanJeij, Zool. Proc. 

 1844. 



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

 albida, Isevagata; 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; hgamento infosso; 

 natibus acutis. 



Oblong, tolerably convex, nearly equilateral, but rather longer 

 in front, of a rather dull white, not very tliick, 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 refuse behind ; anterior 



