259 



obsoletissiinis : dentibus lateralibus parvis, distinctis, subaequidis- 

 tantibus. 



Suborbicular, tolerably solid, inequivalvc, very inequilateral, 

 rather ventricose, hardly at all glossy, dirty wliite, with regular 

 close-set narrow concentric ribs, which posteriorly arc decussated by 

 minute rather obhque radiating striulae ; ventral edge arcuated ; 

 anterior side the longer, its dorsal edge strongly sloping, rather 

 long, nearly straight, its extremity romulcd ; posterior end obtusely 

 rounded, slightly subangulated above, by the short straight and 

 much sloping dorsal edge; beaks prominent ; fold and umbonal 

 ridge obsolete; Hgament sunken; a purple internal stain beneath 

 the umbones; lateral teeth small, but distinct, subequidistaut and 

 rather close. 



St. Nicolas, Isle of Zebu. 



67. TELLiNASPLENDiDA(pl.lvi.f.39.) ^?ii(o»,Verz.Conch. p.5. 



T. testa suborbiculari, solidiuscula, subinsequivalvi, inajquilate- 

 rali, convexa, nitida, albido-flavescente, prope umbones subcseru- 

 lescenteautpurpureotincta; antice profmide et concentrice sulcata, 

 dein striis subradiantibus remotis oblique exarata, et in valva sinistra 

 postice concentrice striata; margine ventrali subarcuato; dorsali 

 utrinque^ subrecte^ declivi, antice brevi; extremitate antica obtuse 

 rotujidata, superne angulata ; latere postico longiore, ad extremi- 

 tatem rotundatam subattenuato ; ligamento infosso ; costa umbo- 

 nali obsoleta; flexura ventrali subinconsjiicua ; superficie interna 

 purpurea; dentibus lateralibus parvis, distinctis, subapproximatis, 

 antico magis approximato, 



Suborbicular, tolerably strong, rather inequivalve, inequilateral, 

 glossy (usually, as in the succeeding species, coated here and there 

 vai\\ a dark rust-Hke substance), yellowish white assuming a pale 

 blueish or purplish cast towards the beaks ; with strong rather dis- 

 tant concentric anterior grooves, followed by deep and not very 

 close oblique radiating ones, wliich terminate posteriorly in one 

 valve in fine close concentric striae; ventral edge rather arcuated; 

 anterior extremity obtusely romided and rather angulated by the very 

 short straight and much sloping dorsal edge ; posterior side the 

 longer, rather attenuated at its rounded extremity, the dorsal slope 

 strong and nearly straight; ligament sunken and small; flexure 

 not conspicuous ; umbonal ridge obsolete; inside purple ; lateral 

 teeth small but distinct, close, anterior one the more so. 



Basay, IsleofSamar; coarse sandy mud, four fathoms ; (Cuming). 



08. Tellina Senegalensis (pi. Ivi. f. 17.) Iluidey, Zool. 

 Proc. 1844. -^ 



