238 



with delicate concentric and obsolete radiating strise, the posterior 

 concentric more distant raised and distinct near the beaks ; ven- 

 tral edge scarcely arcuated, ascending posteriorly; anterior side 

 rounded, its dorsal slope strong; posterior side wedge-shaped, 

 ligamental edge nearly straight, often slightly incurved, moderately 

 sloping, point acuminated ; within rosy, polished, scars deeply im- 

 pressed ; hinge margin broad and very strong j lateral teeth sub- 

 equidistant, rather small, by age obsolete. 

 Indian Ocean (?). 



31. Tellina in/equistriata (pl.lvii. f. 58. and pl.lviii. f. 80.) 

 Donovan, Brit. Shells, (1802), vol. 4. t. 123; T. sanguinea, Wood, 

 Gen. Conch, p. 159. t. 44. f. 2 ; Hani. Desc. Cat, p. 67. t. 4. f. 27. 



T. testa, oblongo-subtrigona, solidiuscula, subsequilaterali, nitida, 

 compressiuscula, paUide rubro-sanguinea, concentrice confertim et 

 exilissime striata; striis posticis altera in valvula remotis, rudi- 

 oribus; margine ventrab subrecto; dorsali antice convexiusculo 

 et subdeclivi, postice declivi et prope nates retuso ; latere antico 

 paulo longiore, ad extremitatem rotundato ; postico truncato-cunei- 

 formi ; colore interno saturatiore ; ligamento prominulo ; flexura 

 costaque umbonali obsoletis; dentibus lateralibus inagnis, antico 

 approximate, postico haud remoto. 



Var. a, striis posticis in utraque valvula remotis, rudioribus. 

 Var. h, testa albida, pallide aurantio ad nates utrinque radiata. 



Oblong, very shghtly triangular, rather solid, somewhat com- 

 pressed ; glossy, subequilateral, of a pale blood red, with fine and 

 crowded concentric striae, which however in one of the valves are 

 posteriorly replaced by coarser and more distant ones ; ventral edge 

 nearly straight ; anterior side rather the longer, its end rounded, 

 its dorsal slope moderate and tolerably convex ; posterior end trun- 

 cated-cuneiform, its dorsal slope strong, nearly straight, or some- 

 what concave near its acute beaks ; ligament but slightly projecting ; 

 fold and flexure obsolete ; internal colours deeper ; lateral teeth 

 large, the posterior not very distant, the anterior subapproximate. 



Var. a, the posterior striae distant in both valves. Var. b, white, 

 with a short pale orange ray on either side of the beaks. 



In sculpture resembling Nitida. 



Bay of Guayaquil; (Cuming). 



32. Tellina princeps (pi. lxiii. f. 206.) Hanley, Zool. Proc. 

 1844. 



T. testa oblongo-elliptica, sequilaterali, solida, compressa, niti- 

 diuscula, intus extusque roseo-purpurascente, concentrice sulcata; 

 striis exilibus, profundis, radiantibus, sulcos confertos, utrinque (et 



