79 



This is a very large species of its type, and closely resembles, 

 in size and shape, Cyclas similis. 



Tellina tithonia. Testa transversa, oblonga, subequilat- 

 eralis, zonis et radiis diversis albis et roseis picta, concentrice 

 lirata, 1 iris postice lamellosis ; latere antico semiovali ; latere 

 postico breviori, triangulari, ad apicem truncato ; plica profunda; 

 margine dorsali recto, declivi ; interior incarnata, ad marginem 

 roseo-maeulata, versus apicem lutea ; dentibus lateralibus satis 

 conspicuis. Long. If; alt. | poll. Hab. Sooloo Sea. 



Intermediate between T. rastellum and T. pulchella, being 

 smaller and of the same shape as the former, but without its 

 peculiar squamous sculpture of the right valve ; and being larger 

 and more roseate than the latter, and from a very different local- 

 ity. It is colored like T. virgata, externally, but is more slender, 

 and deeply colored within also. 



Tellina lauta. T. parva, solidiuscula, oblonga, inequivalvis, 

 umbonibus ad trientem posticalem longitudinis sitis ; latere 

 antico semiovali, margine dorsali recto, latere postico triangulari 

 ad apicem truncato ; valvis concentrice liratis (liris striis 

 obliquis antice decussatis) albis, roseo quadri-radiatis et antice 

 lineis araneosis rosaceis ornatis ; flexura inconspicua : cardo den- 

 tibus lateralibus carens. Long, -j 7 ^ ; alt. -£$ poll. Hab. < 



About the size, form, and coloring of T. Valtonis, Hanley, 

 which appears to be a polished, pellucid shell, with no peculiarity 

 of sculpture. It is very near to T. rhomboides, Quoy, which is 

 said to have fine concentric striae anteriorly, that become obsolete 

 at the middle. 



Tellina compta. T. parva, transversa, inequilateral is, alba 

 vel rubescens, quater roseo-radiata ; umbonibus ad trientem pos- 

 ticum sitis ; latere antico semi-elliptico ; latere siphonali trian- 

 gulari apice truncato, vix insculpto, plicato ; marginibus (scilicet 

 dorsali et ventrali,) fere parallelis ; disco striis concentricis et 

 striis obliquis arato ; dentibus lateralibus nullis ; intusex albo fla- 

 vescens r radiatim striata. Long, f ; alt. ^ ; lat. % poll. Hab. 



Almost precisely like T. decora, which has a well marked 

 lateral tooth, and comes from the West Indies. T. rhomboides, 

 Quoy, varies chiefly in the more partial development of oblique 

 stria?. The coloring is less brilliant, and the striae more delicate, 



