259 



obsoletissimis : dentibus lateralibus parvis, distinctis, subaequidis- 

 tantibus. 



Suborbicular, tolerably solid, inequivalve, very inequilateral, 

 rather ventricose, hardly at aU glossy, dirty wliite, with regidar 

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

 minute rather obhque radiating striulee ; ventral edge arcuated ; 

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

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

 rounded, slightly subangulated above, by the short straight and 

 much sloping dorsal edge ; beaks prominent ; fold and umbonal 

 ridge obsolete ; ligament sunken ; a purple internal stain beneath 

 the umbones ; lateral teeth small, but distinct, sub equidistant and 

 rather close. 



St. Nicolas, Isle of Zebu. 



67. Tellina splendida (pl.lvi. f. 39.) Anton,Y erz.Conch. p. 5. 

 T. testa suborbiculari, sohdiuscula, subinsequivalvi, inseqmlate- 



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

 lescente aut purpureo tincta; antice profuiide et concentrice sulcata, 

 dein striis subradiantibus remotis obhque exarata, et in valva sinistra 

 postice concentrice striata; margine ventrali subarcuato; dorsali 

 utrinque subrecte dechvi, antice brevi ; extremitate antica obtuse 

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

 tatem rotundatam subattenuato ; ligamento inlbsso ; costa umbo- 

 nali obsoleta ; flexurd ventrah subinconspicua ; 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 

 with 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 obhque radiating ones, which terminate posteriorly in one 

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

 anterior extremity obtusely rounded 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 ; hgament sunken and small ; flexure 

 not conspicuous ; umbonal ridge obsolete ; inside purple ; lateral 

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



Basay, Isle of Samar ; coarse sandy mud, four fathoms ; (Cuming). 



68. Tellina Senegalensis (pi. Ivi. f. 17.) Uanleu, Zool. 

 Proc. 1844. 



