1871.] F. Stoliczka— Notes on terrestrial Mollmca. 169 



on pi. viii., in the " Ooncli. Indica," rather represents the present 

 species than the former, although it is very difficult to form a correct 

 idea from such an insufficient illustration, as that given in the above 

 quoted work. The form of the aperture and the natural size of the 

 shell, noted by Hanley and Theobald, certainly do not in the least 

 agree with Benson's Sanlceyanus. 



St. Hanleyanus is not only a smaller and more depressed shell, 

 than the last, but it is very much narrower, with the last whorl 

 more largely uinbilicated, the aperture being also longer and more 

 regularly rectangular. The whorls are finely costulated above and 

 below in both species. 



Genus. ENNEA, H. and A. Adams. 

 Sub-Genus. HUTTONELLA, Pfr. 

 If we consider E. bicolor, Hutton, as the type of Huttone.lla, this 

 sub-genus includes a small number oiEnnece, possessing a more or less 

 sub-cylindrical form and four pliciform teeth in the aperture. Two of 

 the teeth are placed at each side of the prosterior (or upper) angle 

 of the mouth, producing a sort of a canal, in which terminates the 

 pulmonary orifice and the anus. The columellar fold is peculiarly 

 flattened and projecting, somewhat resembling the columellar 

 expansion of Clausilia ; the fourth tooth is usually small, situated 

 at the base of the outer lip. Most characteristic are the two 

 folds, or teeth, at the posterior angle of the aperture. 



1. En-nea [Huttonella] bicolor, Hutton, pi. viii, fig. 7-8. 



Pfr. Mon. Hel. Suppl. V, p. 456. 



Burmese specimens from Rangoon and Moulmein are quite iden- 

 tical with those found about Calcutta and India generally, and the 

 Ceylon and Mauritius form certainly does not differ specifically from 

 them. Some shells appear to attain sooner their adult state than 

 others, having the aperture perfectly developed with a length of 

 only 3J m.m., others grow up to 7 and 8 m.m. The identity of 

 Ennea bicolor, with E. mellita, Gould, and Ceylanica, Pfr., can 

 hardly be disputed. The supposed peculiarity, pointed out by 

 PfeifTer in the last named species, and referring to the shortness 

 of the last whorl, is by no means constant in Ceylon and South 



