322 



more elevated than the arcuated and moderately sloping anterior ; 

 front extremity broad and rounded, hinder one obtuse ; ligament 

 suidcen ; fold and flexure obsolete ; beaks prominent and inclining 

 forward ; teeth extremely large. 



Isle of Panay, Philippines (Cuming). 



195. Tellina alta (pi. Ixii. f. 200.) Conrad, Jour. Ac. N. S. 

 Philad. vol. vii. p. 258; Hani. Des. Cat. p. 71. 



T. testa obovali, subventricosa, crassiuscula, subinsequilaterali, 

 impolitfij concentrice et confertim rugosa, extus intusque albida; 

 margine ventrali subrecto ; dorsali utrinqne paululum declivi, an- 

 tice convexo, postice recto; latere antico longiore, rotundato; 

 extremitate postica obtuse biangulata ; costa mnbonali lata, planu- 

 lata ; natibus recte incurvatis ; ligamento infosso ; dentibus an- 

 gustis. 



Oboval, slightly ventricose, thickish, sHghtly inequilateral, dull 

 white, with crowded concentric wrinkles ; ventral edge straightish ; 

 dorsal little sloping on either side, convex in front, rectilinear be- 

 liind ; anterior side rather the longer, rounded at its extremity ; 

 posterior side obtusely biangulated; umbonal ridge broad but 

 flattened ; beaks directly incui'ved ; ligament sunken ; inside wliite ; 

 the teeth narrow ; the hinge margin broad. 



California. 



196. Tellina ephippium (pi. kv. f. 244.) Spengler, loc. cit. 



T. testa Lacimosa simiUima, sed valde infequivalvi et plane 

 insequilaterali ; costa umbonali angustissima, carinata. 



Closely resembhng Laamosa, but decidedly inequivalve and in- 

 equilateral ; the umbonal ridge narrow and carinated in the flatter 

 valve, replaced by a Linear indentation in the other. 



East Indies (Spengler). 



197. Tellina lacunosa (pi. Ixv. f. 252.) Chem., vol. iv. 

 p. 92. f. 78; Lam. no. 39; Enc. Meth. t. 290. f. 14; Hani. Des. 

 Cat. p. 69. t. 3. f. 12 ; T. papyracea, Gmel. 



T. testa obovali, ventricosa, subinsequivalvi, subsequilaterali, 

 tenuiuscula, subpellucida, extus intusque Candida, sublajvigata, 

 medio contorto-lacunosa ; margine ventrali subrecto sed contorto ; 

 dorsali antico subarcuato ; ligamentali subdeclivi, subrecto ; latere 

 antico lato, rotundato ; postico lato, obtuso ; natibus prominenti- 

 bus, incurvatis; ligamento subinfosso; costa umbonali lata, ob- 

 tusa. 



