656 PROCEEDINGS OF THE ACADEMY OF [DcC. , 



C. AULACOPOMA Pils." Hirado, Hizen (Y. Hirase). 

 C. BioENERi?) Pils.'- Goto, Uzen (Y. Hirase). 



Section TYRAXNOPH^EDUSA Pils. 

 C. DALLi Pils/' Tairiuji, Awa, Shikoku Island (Y. Hirase), 



Section STEREOPH^DUSA Bttg. 

 C. UNA Pils.H Goto, Uzen (Y. Hirase.) 



1' C. aulaco'poma n.sp. Fusiform, slowly tapering above to a subacute 

 apex, light reddish brown, -weakly striatulate, the last whorl somewhat pro- 

 duced forward. Whorls 9^. Aperture piriform, the lip well reflexed, thick- 

 ened. Superior lamella low ; inferior deeply receding ; subcolumellar 

 emerging to the lip-edge. Principal plica long. Upper palatal plica short, 

 joined in the middle to the lunella, which is curved inward below (j-like), 

 with a nodule at its inner termination. Clausilium somewhat spout-like 

 disfally, but wider there than in species of the ptycltocftila group. 



12 C. biyencris n.sp. About the size and shape of C. ignobilis ; pale- 

 brownish, faintly striate. Subcolumellar lamella immersed ; lip broadly re- 

 flexed. Principal plica rather short, dorsal and lateral ; upper palatal 

 plica oblique, almost joined in the middle to a long, slender lunella, the 

 lower end of which curves far inward. Length 14.3, diam. 3.5 mm. 



^' G. Dalli n.sp. With the general form of (J. inikado, the aperture is 

 much as in C. iotaptyx. Whorls 14 to 16. The subcolumellar lamella 

 emerges stronglj^, and sometimes the lip is puckered above it. Lunella as 

 in C. hilabrata. Length 18.5, diam. 4 mm. Thi.s excee<lingly peculiar 

 many-whorled Clausilia belongs to the group of G. bilabrata by its palatal 

 armature, but in contour it resembles species of the group of G. mikddo. 



1* G. una, n.sp. General contour of G. oostoma MUdlL, pale yellowish- 

 corneous, striate. Whorls Hi. Entire inferlamellar margin of the lip 

 closely and deeply plicate. Upper palatal plica short, oblique ; lower long 

 and arcuate, a short, rudimentary lunella rising from it. An extraordinary 

 fStereop/iwdusa, with' interlamellar p ication like Luchujj/nedusd callisto- 

 chila. 



