204 Mr. W. H. Benson on the Characters 



margine columellari angusto. Operculo concavo, Isevi, multi- 



spirato. 

 Diam. major 7, minor G, axis 5 mill. 

 Ha b. ad Teria Ghat. 



Found abundantly on rocks by Mr. Theobald. It is related 

 to the Burmese A. umbonalis (Annals, vol. xvii. p. 225) and to 

 A. strangulatus, Hutton. Inferior in size to the former, it is 

 easily distinguished by its sculpture and by the peculiar deve- 

 lopment of the outer lip at its insertion and base, while the 

 narrow columellar lip gives an appearance of artificial trun- 

 cation to the peristome at that part. In the variety the internal 

 lip is not developed. The margins of the whorls in the oper- 

 culum are not conspicuously raised as in A. umbonalis. 



AlyccEUS stylifer, Bens., n. s. 



Testa umbilicata, depressa, confertira striatula, ad spatium inflatum 

 confertissime acute costulata, nitente, albida , spira brevi, mucro- 

 nata, apice obtusulo, sutura profunda ; aufractibus 4 convexis, 

 ultimo pone stricturam gibbo, tubulum mediocrem gerente, medio 

 stricturse costam prominentem (intus concavam) exhibente ; aper- 

 tura obliqna, subcirculari, irregular!, sinuata ; peristomate sim- 

 plici, iucrassato-reflexo. Operc. ? 



Diam. major o\, minor 4f, axis 3^ mill. 



Hub. ad Darjiling. Teste H. Blanford. 



The rib behind the outer lip corresponds with a deep sulcus 

 within the aperture. A similar feature is observable in the 

 little Bornean Alycaus spiracellum, A. & R., and in the follow- 

 ing species. The single specimen from which the description 

 above given was made is a dead and discoloured shell. The two 

 Alt/cm previously known to inhabit Darjiling are of the pupi- 

 form type. 



Alycaus hebes, Bens., n. s. 



Testa umbilicata, solidiuscula, depressa, vix striatula, ad spatium 

 inflatum et circa umbilicum confertissime striata, carneo-albida, 

 apicem versus rubella ; spira conoidea, ajnce obtusiusculo, sutura 

 impressa ; aufractibus 4 couvexiusculis, ultimo ad latus gibboso, 

 tubulum mediocrem suturalem gerente, spatio constricto costa va- 

 lida retro recumbente niunito ; apertura obliqua, circulari ; peri- 

 stomate continuo, duplici, interior! porrecto, exterior! expanso, 

 incrassato. 



Diam. major 4, minor 3, axis 3 mill. 



Hab. ad Teria Ghat. Teste W. Theobald. 



This species occurs on rocks, and is distinguished by the 

 structure of the aperture from the small Bornean A. spiracellum, 

 A. & R. In the latter species, moreover, the rib behind and 



