300 



150. Tellina umbonella (pi. Ivi. f. 13.) Lamarck, no. 48, 

 Hani. Des. cat. p. 70. 



T. testa obovali, solidiuscula, subinsequilaterali, convexa aut 

 convexiuscula, subimpolita; extus intusque albicla^ umbonibus hya- 

 linis et roseo tinctis^ epidermide teuui fugaci cinerascente induta, 

 Isevigata ; margine veutrali convexo aut subarcuato ; dorsaH 

 utrinque subrecto et paiilo declivi ; latere antico paulo longiore, 

 rotundatoj postico siibangulato ; natibus baud prominentibus ; 

 ligamento infosso ; costa umbonali obsoleta ; deutibus minimis. 



Oboval, tolerably strong, slightly ineqmlaterab merely convex, not 

 glossy, both witliin and without whitish under a thin ashy epider- 

 mis, with the beaks somewhat hyahne and tinged with rose-colour, 

 smooth or with a few antiquated lines ; ventral edge decidedly con- 

 vex ; the dorsal edges but httle sloping, and nearly straight ; an- 

 terior side rather the longer, rounded at its extremity ; posterior 

 side subangulated ; ligament sunken ; beaks not prominent ; um- 

 bonal ridge obsolete ; teeth minute. 



Yery like Plebeia in all but the shape, which • is much more 

 elongated in that species. 



Port Lincoln, Australia. 



151. Tellina nobilis (pl.lx. f. 143.) i?aw/?fy,Zool.Proc. 1844. 



T. testa ovali, solidiuscula, convexa, insequilaterali, nitidissima, 

 intus extusque rosea, laevigata ; margine ventrah convexiusculo 

 medio plerumque subrecto; dorsali antice convexiuscido et vix 

 declivi, postice snbdeclivi et subrecto aut convexiusculo; latere 

 antico longiore, ad extremitatem obtuse rotundato ; postico obtuse 

 angulato ; natibus obtusis ; flexura costaque umbonali subobsoletis ; 

 ligamento prominulo ; dentibus parvis. 



Oval, tolerably strong, convex, inequilateral, very glossy, smooth, 

 rosy within and without ; ventral edge moderately convex ; dorsal 

 tolerably convex and scarcely sloping in front, moderately sloping 

 and varying from straightness to slight convexity beliind; ante- 

 rior side the longer, obtusely rounded at its extremity ; posterior 

 side obtusely angulated; fold and flexure nearly obsolete; Kga- 

 ment rather prominent ; beaks obtuse ; teeth small. 



Luzon, Phihppines. 



152. Tellina lucekna (pi. Iviii. f. 98.) Ranleij, Zool. Proc. 

 1844. 



T. testa oblonga, sohdiuscula, subventricosa, nitidiuscula, laevi- 

 gata, albida, umbonibus aurantiis, antice longiore et rotundata, 

 postice obtuse cuneiformi , margine ventrali subrecto ; dorsali pos- 



