264 



Lin. Sys. 1116; Lin. Mus. Ulr. 476. Chemn. vol. vi. f. 63, 64; 

 Lam. no. 40 • Hani. Des. Cat. p. 69. t, 3. f. 1. 



T. testa ovata, solidS, compressiuscullj nitidiuscula, Candida; 

 margine ventrali arcuato ; dorsali antice snbrecto et valde declivi, 

 postice elevatiore valde declivi paululum convexiuscnlo dentato ; 

 latere antico longiore, angustato, rotundato ; extremitate postica, 

 obtuse biangulata ; lunula areaque ligamentali excavatis ; natibus 

 acutis, prominentibus, ligamento infosso ; dentibus lateralibus va- 

 lidis, sequidistantibus. 



Var. a. Sulcis irregularibus, rudioribus, subobliquis, concentri- 

 cis, postice exarata ; bneis subobliquis, exilibus, concentricis, antice 

 striata. Var. b. Scid])tura obsoletissima. 



Ovate, solid, rather compressed, and not very glossy, uniform 

 white ; ventral edge arcuated ; anterior side the longer, attenuated 

 but rounded at its extremity ; its dorsal slope sudden, and nearly 

 straight ; hinder side obtusely subaugulated, its dorsal edge toothed, 

 rather short and scarcely convex, the slope sudden; ligament 

 sunken ; lunule and lozenge excavated ; beaks acute and prominent ; 

 fold and umbonal ridge by no means conspicuous ; inside white, 

 or yellowish white ; the lateral teeth strong and subequidistant. 



Yar. a. Hinder side roughened by coarse irregular rather ob- 

 lique concentric grooves ; anterior surface traversed by more or less 

 delicate rather obliquely concentric striae. Var. b. Sculpture 

 almost entirely obsolete, but usually discernible on one of the 

 areas. 



Siquijor, Philippines, (Cuming), &c. 



77. Tellina spinosa (pi. lviii. f. 40.) Hanley, Zool. Proc. 

 1844. 



T. testa ovata, solidiuscula, subimpolita, ina?quilaterali, convex- 

 iuscula, extus intusque albida, striis minutis elevatis confertissi- 

 mis concentrice asperata ; margine ventrali arcuato, postice sursum 

 acclinato, dorsali postice elevatiore convexo et declivi, antice prope 

 nates acutas subincurvato, delude subrecto subdeclivi ; latere pos- 

 tico brevi ; extremitate antica rotundata ; extremitate postica spi- 

 narum duabus vel tribus seriebus radiantibns serrata ; lunula parva 

 distincta ; ligamento infosso ; dente laterali antico subapproximato, 

 postico remote 



Ovate, moderately strong, inequilateral, not very convex, dull 

 whitish, with minute elevated crowded concentric striae; ventral 

 edge rather arcuated, and rising behind ; anterior side the longer, 

 its extremity rounded, its dorsal edge slightly incurved near the 



