288 



Var. (T. exigua, Toll. Test, Sicil. 1. t. 15. f. 15, 17.) testa ab- 

 breviata et idcirco margine dorsali utrinque magis declivi ; flexura 

 onmino obsoleta. 



Oval, thinnish, compressed, extremely glossy, subequilateral, 

 smooth both within and without, of an orange, white, orange-red, 

 yellow or rose colour ; the ventral edge convex in front, straightish 

 and ascending behind ; anterior side rather the longer, rounded, its 

 dorsal edge moderately sloping ; posterior extremity obtusely an- 

 gulated ; ligamental edge sloping, at first refuse, then rather con- 

 vex ; ligament prominent ; fold and flexure not quite obsolete ; la- 

 teral tooth very small, approximate. 



Var. Shortened, the dorsal edges consequently more sloping ; the 

 flexure quite obsolete. 



Britain, Europe. 



I agree with Dr. Philippi, in regarding the T. Tijjalina of 

 Deshayes (Exped. Morea, 1. 18. f. 12, 13, 14.), as a narrow variety 

 of this very variable shell. 



125. Tellina juvenilis (pi. lvii. f. 63.) llanley, Zool. Proc. 

 1844,. 



T. testa ovata, subtrigona, tenui, pellucida. compressiuscula, 

 nitida, rubro-aurantia, laevigata, insequilaterali ; margine ventrali 

 convexo aut convexiusculo; dorsali antice subrecto et declivi, 

 postice convexo et valde declivi ; latere antico longiore, subat- 

 tenuato, rotundato ; postico brevi, ct obtuse subcuneiformi ; flexura 

 costaque umbonali subobsoletis ; hgamento satis conspicuo ; dente 

 laterali parvo. 



Subtriangularly ovate, inequilateral, thin, pellucid, slightly com- 

 pressed, smooth, glossy, orange-red ; ventral margin more or less 

 convex ; anterior side the narrower, rounded at the extremity, its 

 dorsal edge nearly straight ; posterior extremity short, and obtusely 

 wedge-shaped, the ligamental edge being convex and abruptly 

 sloping; ligament distinct; fold and flexure almost entirely obso- 

 lete ; lateral tooth small. 



Plvilippines. 



126. Tellina lux (pi. lvii. f. 71.) Hanky, Zool. Proc. 1844. 



T. testa subovali, tenui, pellucida, compressa, nitida, aurantia, 

 sublasvigata, inaequilaterali; margine ventrali convexiusculo ; dorsali 

 utrinque subdeclivi, antice convexiusculo, postice brevi et incur- 

 vato ; latere postico breviore, obtusissime biangulato ; extremitate 

 antica obtuse rotundata, ; flexura costaque umbonali obsoletis ; liga- 

 mento prominente ; dente laterali approximato, distincto. 



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