226 



teeth of one line are just beneath the interstices in the other ; dorsal 

 slopes gentle, the posterior one nearly straight, anterior extremity 

 somewhat narrowed and rounded, posterior end much attenuated 

 and subrostrated ; ventral edge but little convex ; umbonal ridge, 

 ligament, and flexuosity, very prominent ; inside white, disc tinged 

 with orange, a short orange ray on either side near the beak ; la- 

 teral teeth strong, and subequidistant. 



Zanzibar. 



A species sometimes confused with Pulcherrima, but much more 

 elongated, the strise stronger, and the scales entirely absent from 

 the posterior side. It is not impossibly the Aspera of Gmelin, but 

 that shell is too briefly described for recognition. 



8. Tellina pulcherrima (pi. Ixi. f. 165.) Sowerhy, Tank, 

 Cat. App. p. 3. t. 1. f. 1 ; Hani. Des. Cat. p. 67. sup. 1. 11. f. 14 > 

 Knorr. vol. iv. t. 25. f. 1. 



T. testa oblonga, soHda, convexiuscula, subsequilateraU, flavo ru- 

 broque radiata, in medio concentrice et tenuiter sulcata ; utrinque 

 squamosa, sqamis erectis, dentiformibus aut sublunatis; margine 

 ventrali convexiusculo ; dorsali utrinque leviter declivi ; extremitate 

 anticii rotundata ; postica subattenuata, angulata ; superficie interna 

 albida, umbones versus aurantio tincta ; dentibus lateralibus vaHdis, 

 subsequidistantibus . 



Oblong, soHd, moderately convex, subequilateral, rayed with pale 

 crimson red and yellow, concentrically sulcated; sulci tine and 

 terminated at either extremity and near the little arcuated ventral 

 margin, by sublunate scales, which in some specimens become more 

 elevated and somewhat tongue-shaped ; dorsal slopes gentle ; ante- 

 rior extremity rounded ; posterior rather attenuated ; lateral teeth 

 very strong, and nearly equidistant. 



Var. a. More elongated, sulci and scales stronger and more nu- 

 merous. Var. h. Sidci very fine and rather oblique ; scales visible 

 along the ventral margin. 



Singapore, and Straits of Banca (Cuming). 



9. Tellina asperrima (pi. Ix. f. 135.) Hanlei/, Zool. Proc, 

 1844. 



T. testa oblongo-elliptica, convexiuscula, solidiuscula, flavida aut 

 incarnata, roseo-radiata ; tota superficie externa squamis asper- 

 rima ; squamis antice sublunatis, postice (et prsesertim supra costam 

 imibonalem distinctam) spinosis ; margine ventrali medio subrecto, 

 flexura distincta ; dorsali utrinque subdecHvi, et paululum convexi- 



