264 



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

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



T. testa ovata, solida, compressiuscula, nitiiliuscula, Candida; 

 niargine ventraU arcuato ; dorsali antice subrecto ft valde decUvi, 

 postice elevatiore valde decUvi paululuni convexiuscido dentato ; 

 latere antico longiore, angustato, rotundato ; extremitate postica, 

 obtuse biangidata ; luiiula areaque ligamcntali excavatis ; natibus 

 acutis, promiuentibus, ligamento infosso ; dentibus lateralibus va- 

 lidis, sequidi stantibus. 



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

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

 striata. Yar. b. Sculptura obsoletissima. 



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

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

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

 straight ; hinder side obtusely subangulated, 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 M'liite ; the lateral teeth strong and subequidistant. 



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

 lique concentric grooves ; anterior surface traversed by more or less 

 delicate rather obliquely concentric stride. Var. h. Sculptiu'e 

 almost entirely obsolete, but usually discernible on one of the 

 areas. 



Siquijor, Pliihppines, (Cuming), &c. 



77. Tellina spinosa (pi. lvii|. f. 40.) llanleij, Zool. Proc. 

 1844. 



T. testa ovata, solidiuscula, subimpolita, inaequilaterali, convex- 

 iuscula, extus intusque albida, striis minutis elevatis confertissi- 

 mis concentrice asperata ; margine ventrali arcuato, postice siu'suni 

 acclinato, dorsali ])ostice elevatiore convexo et decli\'i, antice projie 

 nates acutas subincurvato, delude subrecto subdecHvi ; latere pos- 

 tico brevi ; extremitate antica rotundata ; extremitate postica spi- 

 narum duabus vel tribus seriebus radiantibus serrata ; Imiula parva 

 distincta ; ligamento infosso ; dente laterali antico subapproximato, 

 postico remoto. 



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

 wliitish, witli minute elevated crowded concentric strise; ventral 

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

 its extremity rounded, its dorsal edge slighllv incurved near the 



