298 



ground-colour of the shell." There seems from the drawing to be 

 but a single anterior moderately distant lateral tooth, and no 

 external appearance of rays in the front of the shell. The sculpture 

 must indeed be minute, to have escaped the attention (as it has) 

 of our very accurate artist. 



146. Tellina subeosea (pi. lvii. f. 64.) lianley. 



T. testa oblonga, tenuissima, compressa, valde insequilaterali, 

 rosea, pellucida, leevi, nitida, postice breviore et obtuse cuneiformi, 

 antice obtusa, aut rotundata ; margine ventrali subrecto ; dorsali 

 antice paululum dechvi, postice dechvi, utrinque subrecto aut con- 

 vexiusculo; flexura inconspicua ; dente laterali subobsoleto, ap- 

 proximate 



Oblong, extremely thin, compressed, smooth, pellucid, rosy, very 

 inequilateral and highly glossed ; ventral margin straightish ; dor- 

 sal edges straightish or but slightly convex, very slightly sloping 

 in front, moderately so behind; anterior extremity rounded or 

 obtuse; posterior side the shorter and obtusely wedge-shaped; 

 flexure very inconspicuous ; lateral tooth approximate and almost 

 obsolete. 



Catbalonga, Isle of Samar, soft mud ; (Cuming) . 



The specimens closely resemble, the young of the Punicea group, 

 but both locality and dentition are adverse to this conclusion. 

 They appear, however to be scarcely adult. 



147. Tellina margaritina (pi. lxvi. f. 257.) Lam. no. 18; 

 Deless. Rec. t. 6. f. 4. 



T. testa ovali, tenui, pellucida, nitida, margaritacea ; latere an- 

 tico (postico) attenuato. 



Oval, thin, transparent, glossy, nacreous white, front (hinder) 

 side attenuated. 



New Holland. 



The representation of the species in Delessert/s magnificent 

 folio, enables me to refer this shell to the present division. I am 

 unable, however, to add a more lengthened description than the 

 very meagre outline furnished in the ' Animaux sans vertebres '. 

 The only specimens I have ever seen were the original types of the 

 French Museum; but they sufficed to convince me of the clear 

 distinctness of the species from any possessing a similar dentition. 



* # * Devoid of lateral teeth. 



148. Tellina Cumana (pi. lviii. f. 73.) Psammobia Cumana, 



