296 



dorsal but little sloping on either side, slightly convex in front, 

 nearly straight behind ; anterior side very slightly the longer, 

 rounded; posterior extremity subangulated, subemarginated ; li- 

 gament prominent ; flexure quite obsolete ; lateral tooth approxi- 

 mate. 



Real Leijos, Central America (Cuming). 



142. Tellina (Tellinides) ovalis (pi. lx. f. 147.) Sowerby, 

 Tank. Cat. App. p. 3; Hani. Des. Cat. p. 73. sup. t. 13. f. 56; 

 T. tridentata? Anton, in Wiegm. Arch. 1837. 



T. testa ovali, tenuissima, pellucida, subsequilaterali, compressa, 

 nitida, rosea, radiis angustis albitlis frequentibus ornata, concen- 

 trice substriata ; marginc ventrali couvexiuscido ; dorsali utrinque 

 paululum declivi; latere antico longiore, rotundato; extremitate 

 postica obtusa, aliquantulum latiore ; flexura costaque umbonali 

 obsoletis ; natibus inconspicuis ; ligamento prominente ; dente 

 laterali approximate, distineto. 



Oval, pellucid, subequilateral, compressed, extremely thin, con- 

 centrically substriated, and variegated with crowded narrow whitish 

 rays on a rose-coloured ground ; the ventral margin slightly con- 

 vex; the dorsal but little sloping on either side, the ligament edge 

 slightly refuse ; posterior extremity obtusely rounded, and rather 

 broader than the rounded termination of the more elongated ante- 

 rior side ; fold and flexure obsolete ; beaks not prominent ; ligament 

 projecting; a distinct approximate lateral tooth. 



Moluccas ; San Nicolas, Zebu ; (Cuming) . 



The Solen striatus, of Gmelin (from Chemnitz, vol. vi. f.57,58.), 

 seems closely allied if not identical. 



143. Tellina coccinea (pi. lviii. f. 90.) Chemnitz, vol. vi. 

 p. 118. f. 109 ; Dillw. Des. Cat. p. 87 ; Tellinides coccinea. Hani. 

 Des. Cat. p. 74. t. 4. f. 42. 



T. testa ovali, tenuissima, compressa, sequilaterali, pellucida, 

 roseo-purpurascente, utrinque rotundata ; concentrice striata, striis 

 anticis frequentibus, posticis remotis et subimbricatis ; margine 

 ventrali convexiusculo ; dorsali utrinque paululum declivi ; flexura, 

 costaque umbonali obsoletis ; ligamento prominente ; costellis 

 duabus intends (in junioribus) postice radiantibus ; dentibus pri- 

 mariis subobsoletis, dente laterali approximato, distineto. 



Oval, compressed, very thin, equdateral, of an uniform pellucid 

 purple-rose colour, with concentric striae which are crowded in 

 front, but distant and subimbricated behind ; the ventral edge 

 moderately convex ; the dorsal but little sloping on either side of 



