59 



April 9, 1844. 



William Yarrell, Esq., Vice-President, in the Chair. 



A paper by Mr. Sylvanus Hanley ■vvas read, containing the follow- 

 ing descriptions of new species of the genus Tellina, chiefly collected 

 by H. Cuming, Esq. in the Philippine Islands and Central America : — 



Tellina Cumingii*. Tel. testd elongato-oblongd, subteąuilaterali, 

 solidu, compressiusculd, vix nitidd, albidd aut flavescente, maculis 

 aut strigis lineisve brunneis aut fusco-purpurascentibus radiatd, 

 concentrice sulcatd ; suleis antice confertis, subimbricatis, postice 

 sublamellosis remotiusculis ; margine ventrali eotwexo, utrinque 

 sursilm acclinante ; dorsali utrinąue subdeclivi, antice convexius- 

 culo, postice subrecto, subincurvato, subdentato ; latere postico 

 attenuato, rostrato, paululilm breviore, nd extremitatem biangulato ; 

 costd umbonali valde prominente ; ligamento inconspicuo ; super- 

 ficie internd albidd aut flavidd ; dentibus lateralibus validis, sub- 

 aguidistantibus. Long. O" 95 ; lat. 2-40 poli. 



Hab. Guacomayo, Central America ; in coral sand. 



Intermediate bet\veen Spengleri and Mexicana. 



Tellina Rastellum. Tel. testd elongatd, convexiusculd, aguilate' 

 rali, solidd, flavidd, pallide roseo radiatd, antice sulcatd, postice 

 sguamosd ; sguamis erectis, lamellosis, in iisdem seriebus cum suleis 

 concentricis, ordinatis ; margine ventrali vix convexiusculo ; dor- 

 sali utringue paululilm declivi, antice vix convexiusculo, postice 

 recto aut subincurvato ; latere postico attenuato, subrostrato, ad 

 extremitatem obligue biangulato ; extremitate anticd rotundatd ; li- 

 gamento, et costd umbonali, conspicuis ; superficie internd albidd, 

 umbones verstis aurantio utringue fucatd; dentibus lateralibus 

 validis, subceguidistantibus, Long. 1'61 ; lat. 3"61 poli. 

 Hab. Zanzibar. Mus. Cuming, Stainforth, &c. 

 A species freąuently confused ■with pulcherrima, but much more 

 elongated, the sulci stronger, and the scales entirely absent from the 

 anterior side. 



Tellina asperrima. Tel. testd ohlongo-ellipticd, convexiusculd , 

 solidiusculd, flavidd aut incarnatd, roseo-radiatd, totd superficie 

 externd, sguamis asperrimd ; sguamis antice semilunatis, postice (et 

 prtesertim supra costam umbonalem distinctam) spinosis ; margine 

 ventrali medio subrecto flexurd distinctd ; dorsali utringue subde- 



* In my formev papers I have used the terms postevior and anterior in 

 the Lamarckian sense of the vvords ; but as 1 find this is contrary to the 

 practice of the other writers in these Proceedings, for the sake of uniformity 

 I now conform to their phraseology. 



No. CXXXIV. — Proceedings of the Zool. Soc. 



