236 



sima, sublsevigata^ rosea, radio pallidiore postico pleramque notata ; 

 margine ventrali antice arcuate, postice flexuoso et sursum accli- 

 nato ; dorsali utrinque vix mmime declivi, prope nates acutas 

 subretuso, deinde subrecto aut paululum convexiusculo ; latere an- 

 tico longiore, ad extremitatem rotundato ; postico angusto, acumi- 

 nato, rostrato ; ligamento iiifosso ; flexura costaque umbonali con- 

 spicuis ; deiitibus lateralibus parvis, tenuibus, sequidistantibus. 



Var. riavo-aurantia. 



Much elongated, compressed, tliin, subpellucid, polished, rose- 

 coloured, with usually a paler posterior ray, nearly smooth, or •mth 

 minute radiating and concentric striae ; ventral edge arcuated in 

 front, flexuous and greatly elevated beliind ; dorsal edge scarcely 

 at all sloping in front, rather more so posteriori}-, subretuse near 

 the acute beaks, and then straightish or very slightly convex ; an- 

 terior side the longer, rounded at its extremity; posterior side 

 forming a narrow acuminated beak ; ligament sunken ; fold and 

 flexure conspicuous ; lateral teeth tliin, small, and equidistant. 



Var. Eich yellow. 



Yellow var. Isle of Zebu. 



As tliis is not the Bodrata of Linnaeus, I have adopted the other 

 name proposed by Chemnitz " Rostrata seu VtdseUa". 



28. Tellina perna (pi. Ixiii. f. 202, 217, 219.) Spengler, 

 Schi'i\i;. Naturhis. Gelstav. Kiobenha. 4. (1798). T. paUescens 

 Bil. Des. Cat. p. 84. T. sulphui-ea and latirostra i/«y;?. no. 10, 

 11. Haul. Des. Cat. p. 62. T. incarnata Born p. 36. t. 2. f. 12. (er- 

 roneously quoted as 11 in text). T. rostrata flavescens Chem. 

 vol. vi. f. 104. T. latirostra, Swain. Zool. 111. 2nd ser. vol. i. t. 20. 



T. testa oblongo-elongata, tenuiuscula, convexa, subpeUucida, 

 nitida, sublsevigata, alba, flava, aurantia aut rosea, radio paUidiore 

 postico plerumque ornata ; margine ventrah antice arcuato, postice 

 sursum declivi; dorsah antice vix declivi, convexiuscido, postice 

 paululum declivi, prope nates conspicuas subincurvato, mox con- 

 vexiusculo ; latere antico longiore, subproducto ; postico rostrato ; 

 extremitate postica obtuse angulata ; umbonibus subtumidis ; hga- 

 mento infosso; margine cardinalis interno, angusto, callo liga- 

 mentah munito ; dentibus laterahbus tenuibus, inconspicuis, sequi- 

 distantibus. 



Elongated-oblong, rather thin, scmitranspareni, convex, glossy, 

 very variable in colouring, being sulphiu'-yellow, wliite, pink with 

 or without paler rays, orange \nth wliite rays, or orange flesh-co- 

 loured, &c., nearly smooth, often with obsolete radiating striulse, 

 which are more evident posteriorly ; ventral edge ai-cuated in front. 



