306 



164. Tellina dispar (pi. lix. f. 108, 113, 114.) Conrad, 

 Jour. Ac. N. S. Philad. vol. vii. 



T. testa ovata, solicliuscrda, satis convexa, nitida, Candida aut 

 rosea, subEequilaterali, postice breviore et obtuse angulata aut ob- 

 tusissime cuiieiformi, autice rotundata; altera valvula Isevi, altera 

 striis tenuissimis autice concentricis deiude obliquis confertim or- 

 nata; margine ventrali convexiusculo ; dorsali utrinque baud 

 uiultum declivi aut convexo ; ligamento promiueute ; flexura ob- 

 soleta. 



Ovate, tolerably strong, moderately convex, glossy, white or 

 rose-coloured, nearly equilateral, rounded in front, rather shorter 

 and very obtusely wedge-shaped or obtusely angulated behind; 

 one valve smooth, the other with fiue striae, which are concentric 

 in front and then become oblique and crowded ; ventral margin 

 but slightly convex ; dorsal edges not greatly sloping or convex ; 

 ligament prominent ; iiexure obsolete. 



Sandwich Isles; and Isle of Bohol, soft mud, eight fathoms, 

 (Cuming) . 



In some specimens there is a tinge of rose-colour near the dorsal 

 edges. 



165. Tellina lutea (pi. lix. f. 103, and Ixv. f. 249.) Gray 

 in Index Test. Sup. t. 1. f. 3 ; Haid. Des. Cat. p. 67. sup. t.I. f.3. 

 T. Guildfordiffi, Grai/ in Grif. Cuvier, Mol. t. 19. f. 2. 



Young ; T. alternidentata, Brod. and Sow., Zool. Jour. vol. iv. 

 p. 363 ;^Zool. to Beechey Voy. t. 44. f. 5. 



T. testa ovali-subtrigona, subsequilatcrali, subinsequivalvi, com- 

 pressiuscula, sublsevigata, albida aut paUide rosea, epidermide 

 subviridi fugaci (in junioribus) induta, antice rotundata ; margine 

 ventrali subrecto aut convexiusculo ; dorsali antice subdeclivi et 

 convexiusculo, postice declivi et prope ligamentum magnmn sub- 

 retuso deindeque convexo ; latere postico obtussissime cuneiformi ; 

 natibus erosis; flexura obsoleta; superficie interna albido-rosea, 

 utrinque saturatius fucata, aut roseo subradiata ; dentibus prima- 

 riis in utraque valvula duobus, altero simphci, altero bicuspidato, 

 alternatim inter se insertis. 



Oval-subtriangular, subequilateral, rather compressed, slightly 

 inequivalve, nearly smooth, whitish or pale rose-colour under (in 

 young specimens only) a thin fugacious greenish epidermis ; ven- 

 tral edge but shghtly (if at all) convex ; anterior side rounded, its 

 dorsal edge but slightly convex and not much sloping ; posterior 

 extremity very obtusely wedge-shaped, the dorsal edge near the 



