580 MK. S. HANLET ON TWO NEW SHELLS. 



Description of two new Shells. By Sylvanus Hanlet, F.L.S. 

 [Eead December 19, 1878.] 



MelaniaLimborgi, -ffajtZey. T. oblongo-turrita, brevis,magis 

 minusve crassa, olivaceo-flava. Anfractus pauci (circiter 8), 

 magni, convexi, rapide crescentes ; supremi laeves, fascia spiral! 

 livida aliquantuhim supra medium saepius picti; inferiores cos- 

 telHs subdepressis (nonnumquam versus costellas basis acutiores 

 angustas magisque distantes obsoletis) spiraliter ornati. Sutura 

 distincta. Apertura ovato-elliptica, basi rotundata, circiter f 

 longitudinis testse sequans, livida vel livido-fasciata ; peristoma 

 pallida ; columella arcuata, macula livida picta, baud angusta. 

 Long. 1 poll. 



Hob. Mule-it Eange, Tenasserim {Limborg). 



I am indebted for specimens of tbis sbell to Colonel Godwin- 

 Austen, wbo has requested me to name the species after its dis- 

 coverer. Tbe shell, which is very unlike any of its congeners in 

 British India, displays no other painting than the narrow livid 

 band which winds occasionally to the outer lip ; it is probable, 

 however, that additional ones are sometimes developed upon the 

 body-whorl. The spire tapers quickly to its point, which latter 

 is broken in all the examples I have studied. There are no lon- 

 gitudinal folds. 



Leptomya gravida, Hanley. T. rhomboideo-obovalis, subequi- 

 lateralis, fragilis, in medio tumida, ad rostrum concava, lactea, 

 lineis tenuibus elevatis approximatis concentrice rugosa ; plica 

 dorsalis postica angulata margini dorsali fere attingens. Latus 

 anticum rotundatum ; latus posticum acuminatum, extremitas 

 rostri centralis. Marge dorsalis antice subdeclivis, postice de- 

 clivis ; margo ventralis in medio subito tumidus, postice concavus. 

 Apex declivis, acutissimus. Long. 1 poll. 



Hah. ? (3£us. Hanley). 



I have only seen a single valve (a left one, in very fine con- 

 dition) of this peculiar-looking shell, which merely differs from a 

 broken specimen from Arakan in the greater closeness of its 

 raised lines and the nearer approximation of its Telliniform fold to 

 the dorsal edge. It approaches the L. {Necera) cochlearis of 

 Hinds ; but in that bivalve the raised lines are further apart, the 

 posterior side is much longer, and the apex of the more tapering 

 and more elongated beak rises above the middle. The rare Scro- 



