249 



flexure ilistinot; inside yellowish white; lateral teeth distinct and 

 nearly equidistant. 



Var. Rayed with orange-red and white j beaks but slightly if at 

 all rosy. 



Isle of Negros, Pliilippines (Cuming). 



- 50. Tellina laevigata (pl.lxiv. f.225, 227.) Lin. Sys. 1117 ; 

 Lin. Mus. Ub-. 480 ; Schroet. einl. t. 7. f. 10 ; List. t. 387. f. 234 ; 

 Lam. no. 36 ; Hani. Des. Cat. p. 68. 



T. testa ovato-rotundata, solida, subsequilaterali, nitida, convexa, 

 aut subventricosa, sublsevigata ; margine ventrali antice arcuato, 

 postice sursum accliuato ; dorsah, antice subdeclivi magis minusve 

 couvexo^ postice declivi et superne subretuso aut subrecto et in- 

 ferae couvexo ; latere antico paululum longiore, rotundato, dila- 

 tato; postico magis minusve angulato; natibus prominentibus ; 

 pube striis lamellosis rugosa ; Hgamento iufosso ; fiexura costaque 

 mnbonali conspicuis ; cardine, dentibus lateralibus validis, subap- 

 proximatis, subaequidistantibus. 



Var. a. Subalbida, radiis roseo-aurantiis ornate. Var. b. (T. 

 conciuna, Phil. Ab. und Bes. Conch, part. 5. t. 5. f. 1.) Albida, 

 marginibus intus extusque rubro-aurantiis. 



Rounded-ovate, solid, subequilateral, glossy, convex or subven- 

 tricose, nearly smooth (there are obsolete crowded radiating lines, 

 and frequently but not always minute very close raised concentric 

 striulse towards the lower margin and at either extremity) ; ventral 

 edge arcuated in front, greatly rising behind ; anterior side rather 

 the longer, rounded and dilated, its dorsal edge more or less con- 

 vex and not much sloping ; posterior side more or less angulated, 

 its dorsal edge sloping and nearly straight or slightly retuse above, 

 but convex at its termination ; beaks prominent ; ligament sunken ; 

 fold and flexure conspicuous ; lateral teeth strong, subapproximate, 

 subequidistant. 



Var. a. Whitish, or flesh-coloured with rosy orange rays. Var. 

 b. Wliite ^^dth the edges alone of a bright orange red, and the 

 umbones and interior usually tinged with yellow. 



An extremely variable species, with the beaks usually worn at 

 the touching point. 



St. Thomas, West Indies. 



51. Tellina SEMEN (pi. Ivi. f. 8,) Kanley, Zool. Proc. 1844. 



T. testa ovali, crassa, inajquilateralij subventricosa, nitida, albida 

 (intus submargaritacea), antice rotmidata, postice obtusa; couccn- 

 trice striata, striis antice subimbricatis confertissimisque, postice 



