69 



natibus acutis, prominentibus ; flexurd obsoletd ; dentibus latera- 

 libus distinctis, antico approccimato, postico parvo, remoiiore. 

 Long. 1-80; lat, 2-60 poli. 

 Hab. Tumbez, Peru. 



This most exqui8ite shell will probably prove ineąuivalve, but as I 

 have never met ivith any but left vai ves, I can only judge so from 

 analogy. Although very difFerent in shape, its texture and tlie ex- 

 cavated dorsal areas remind us of Burnetti. The ventral fold is obso- 

 lete, and the situation of the umbonal ridge is indicated by a linear 

 carina, which is only separated from the dorsal edge by a narrow 

 concavity. 



Tellina Philippinarum. Tel. testu ovatd aut subovatd, tenui, 



subaguilaterali, intus ejctusgue candidd, nitidd, concentrice ei tenv- 



issime striatd ; margine ventruli arcuato, posiice sursūni acclivi ; 



dorsali antico brevi, recto, subdeclivi ; lutere postico subcunei- 



formi ; ligamento prominulo ; extremitate anticd obtusd ; cardine 



dente laterali (in junioribus subobsoleto) antico subapproximato . 



Long. 0-70; lat. 1 poli. 



Hab. St. Nicholas, isle of Zebu, and Jimmamailan, isle of Negros. 



This shell, which appears to be common throughout the Philippine 



Islands, reminds us by its shape of the T. solidula. It is rather vari- 



able in its proportions, and but rarely attains the assigned dimen- 



sions. In aged specimens the vicinity of the umbones is usually of 



a flesh-colour or tavvny orange. 



Tellina Listeri. Tel. testd obovatd, solidd, ventricosd aut sub- 

 venlricosd, <Equilaterali, ylabrd, eitus intusąue candidd ; margine 

 ventrali medih subrecto ; dorsali antice arcuato paululumque de- 

 clivi, postice recto, declivi ; latere antico dilatato, obtuse rotundato ; 

 postico obtusissime biangulato ; ligamento magno, infosso ; natibus 

 obtusis ; umbonibus plerumgue subplanulatis ; cardine dente late- 

 rali antico subapproximato. Long. 2"3 ; lat. 3" poli. 

 Hab. Senegal. Mus. Cuming, Hanley. 



This species appears to be represented in Lister's ' Historia Con- 

 chyliorum,' plate 288. lig. 235. Although in general shape it is 

 approached by many of its section (Tellina w'ith a single lateral tooth), 

 its superior size and soliditj' rendcr it remarkable. 



Tellina pumila. Tel. testd T. Philippinarum simillimd, sed an- 

 gustiore ; margine ventrali medih subrecto ; dorsali utringue recto 

 aut subconcavo, antice paiiluliim declivi, latere postico cuneiformi ; 

 margine antico recto, verticali. Long. O'GO ; lat. 090 poli. 

 Hab. Valparaiso ; sandy mud, from seven to thirty fathoms. 

 Easily to be confused \vith T. Philippinarum, but is decidedly nar- 

 rower and the margins less convex. The front dorsal edge, which 

 is longer and less sloping than in that species, forras an angle with 

 the straight and direct anterior margin. 



Tellina Culter. Tel. testd parvd, ovatd, intEquilaterali, tenuius- 

 culd, convexd, nitidd, intus extusque aurantio-rosed, lavigatd į 



