248 



interruptis; marginc ventrali convex o, ntrinque (maxime autem 

 postice) sursum acclinato ; dorsali postice valde declivi prope um- 

 bones subincurvato moxque subrecto, antice convexiusculo et paulo 

 declivi; latere postico brevi, acmninato; antico producto, ad 

 extremitatem rotundato-obtuso ; natibus acutis, rubro-roseis ; liga- 

 mento infosso; superficie interna alba aut flavescente; dentibus 

 laterabbus modicis, baud remotis. 



Large, suboval, subequivalve, inequilateral, strong, rather com- 

 pressed, nearly smooth or marked with concentric striulse ; of a 

 glossy white with brilliant rays of a rosy red ; ventral edge convex, 

 rising at each extremity, but more particularly so at the posterior 

 end which is short and acuminated ; anterior side produced, its 

 extremity obtusely rounded, its dorsal edge but slightly convex 

 and little sloping ; posterior dorsal edge greatly sloping, somewhat 

 incurved near the rather acute beaks which are always rosy-red, 

 and then nearly straight or but slightly convex ; hgament sunken ; 

 inside usually tinged with yellow, lateral teeth moderately large 

 and distant. 



South Seas. 



49. Tellina chloroleuca (pi. lxiii. f. 208, 210.) Lam. 

 no. 15 ; Rumphius t. 45. f. 1. 



T. testa ovata, subtenui, convexa, nitida, albidu aut albido-fla- 

 vescente, radiis multis angustis pallide roseis ornata, sublpevigata, 

 (lineis obsoletis radiantibus saepe versus marginem ventralem 

 strias concentricas confertissimas decussantibus) ; margine ventrali 

 arcuato, postice sursum acclivi ; dorsali antice convexo aut con- 

 vexiusculo satisque declivi, postice satis brevi convexiusculo et 

 valde declivi ; latere antico longiore, ad extremitatem rotundato ; 

 postico brevi, acuminato ; natibus roseis, prominuhs ; costa um- 

 bonali et flexura ventrali conspicuis ; ligamento angusto infosso ; 

 superficie interna albido-flavescente ; dentibus laterabbus, distinctis, 

 subajquidistantibus. 



Var. Radiis albidis et rubro-aurantiis picta ; natibus vix roseis. 



Ovate, convex, rather thin, of a glossy yellowish white, with 

 numerous interrupted narrow rays of a pale rose colour, nearly 

 smooth, (often decussated towards the arcuated and posteriorly 

 rising ventral margin with concentric striula? and obsolete radiating 

 hues) ; anterior side the longer, its extremity rounded, its dorsal 

 edge convex and moderately sloping ; posterior side acuminated, 

 very slightly beaked and rather short, the dorsal edge but slightly 

 convex and much sloping ; beaks of a deep rose-colour and rather 

 prominent; hgament narrow and sunken; umbonal ridge and 



