259 



obsoletissimis : dentibus lateralibus parvis, distinctis, subsequidis- 

 tantibus. 



Suborbicular, tolerably sobd, inequivalve, very inequilateral, 

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

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

 minute rather oblique radiating striulse ; 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 ; hgament sunken ; a purple internal stain beneath 

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

 rather close. 



St. Nicolas, Isle of Zebu. 



67. Tellina splendid a (pl.lvi. f. 39.) Anton,Verz. Conch, p.5. 

 T. testa, suborbiculari, sobdiuscula, subinajquivalvi, insequilate- 



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

 lescente aut purpureo tincta; antice profunde et concentrice sulcata, 

 dein striis subradiantibus remotis oblique exarata, et in valva sinistra 

 postice concentrice striata ; margine ventrali subarcuato ; dorsah 

 utrinque subrecte declivi, antice brevi ; extremitate antica obtuse 

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

 tatcm rotundatam subattenuato ; Hgamento infosso ; costa umbo- 

 nah obsoleta ; fiexura. ventrali subinconspicua ; superficie interna 

 purpurea; dentibus laterabbus parvis, distinctis, subapproximatis, 

 antico magis approximate 



Suborbicular, tolerably strong, rather inequivalve, inequilateral, 

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

 with a dark rust-like substance), yellowish white assuming a pale 

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

 tant concentric anterior grooves, followed by deep and not very 

 close oblique radiating ones, which terminate posteriorly in one 

 valve in fine close concentric striaj ; 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 ; ligament 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. lvi. f. 17.) Hartley, Zool. 

 Proc. 1844. 



