289 



Somewhat oval, tliin, pellucid, compressed, inequilateral, nearly 

 smooth, and of an uniform glossy orange-Hesli colour ; the ventral 

 margin moderately convex ; the dorsal but Kttle sloping on either 

 side, but moderately convex in front, incurved and short behind ; 

 anterior extremity obtusely rounded ; the posterior side much the 

 shorter, and very obtusely biangulated ; fold and flexui-e obsolete ; 

 ligament prominent ; lateral tooth distinct and approximate. 



Philippines, 



127. Tellina vernalis (pl.lviii. f. 84.) Hanley, Zool. Proc. 



1844. 



T. testa subovali, tenuissima, compressiuscula, pellucida, nitidis- 

 sima, Isevi, valde insequilaterali, albido-rosea, utrinque rotundata ; 

 margine ventrali convexiusculo, antice sursum acclinato ; dorsali 

 utrinque paululum convexiusculo, postice declivi, antice vix minime 

 declivi; latere antico producto, postico brevi; flexura obsoleta; 

 dente laterali minimo, subapproximato. 



Somewhat oval, extremely tliin and pellucid, slightly compressed, 

 very inequilateral, uniform glossy pini, rounded at both extremi- 

 ties ; margins slightly convex, the ventral rising in front, the ante- 

 rior dorsal scarcely sloping ; flexure obsolete ; anterior side short 

 and cuneiform ; lateral tooth minute and nearly approximate. 



Siugaj)ore. 



128. Tellina insculpta (pi. Ix. f. 136.) Hanlev, Zool. Proc. 

 1844. 



T. testa oblongo-elongata, soHdiuscula, compressa, sequilaterali, 

 extus intusque Candida ; sulcis confertis concentrice exarata, striis- 

 que tcnuissimis radiantibus (prgesertim postice) decussata; ultra 

 costam umbonalem subobsoletam subsquamosa ; margine ventrali 

 elongato, subrecto; dorsali utrinque subrecto, subdechvi; extre- 

 mitate postica subbiangulata ; flexura ventrali distincta; dente 

 laterali quamplurimum approximato. 



Elongated-oblong, tolerably sohd, compressed, equilateral, ex- 

 ternally and internally white, with concentric crowded sulci, and 

 most minute posterior radiating striulse; beyond the almost obsolete 

 umbonal ridge, the surface roughened by small scales or inter- 

 rupted delicate lamellse ; ventral edge nearly straight, and much 

 elongated ; dorsal margins nearly straight and but moderately slop- 

 ing ; hinder extremity somewhat biangulated ; ventral flexure dis- 

 tinct ; lateral tooth extremely approximate. 



Chiriqui, W. Columbia. 



