THE NAUTILUS. 77 



irregular growth-lines and bearing sparse triangular cuticular pro- 

 cesses, nearly wanting in some individuals. Whorls 5 to 5^, con- 

 vex, the last angular at the periphery, the angle disappearing be- 

 hind the outer lip, slowly descending below the angle of the pre- 

 ceding whorl. Aperture very oblique, rounded, about one-fourth of 

 the circle excised by the preceding whorl. Peristome thin, expanded. 



Alt. 4.5, diam. 7.3 mm. 



Alt. 5, diam. 7 mm. 



Arato, Echizen. Types no. 83879 A. N. S. P., from no. 752a 

 of Mr. Ilirase's collection. 



This western race is distinguished from onriensis by its more conic, 

 elevated spire, and sparser cuticular shreds. 



Eulota (Aegista?) intonsa Pils. & Hi rase, n. sp. 



Shell depressed, somewhat lens-shaped, umbilicate, the umbilicus 

 less than one-fourth the diam. of the shell; thin; light brown with 

 some indistinct corneous streaks, and corneous around the umbilicus. 

 Surface somewhat shining, rather roughly papillose-striate, the last 

 whorl densely set with short, hair-like cuticular processes, in part 

 rubbed off. Whorls 5 to 5^, slowly widening, somewhat convex, 

 the last whorl strongly angular at the periphery, much more convex 

 below the angle than above, shortly descending in front. Aperture 

 oblique, oval ; peristome thin, the upper margin slightly expanded, 

 outer and lower margins expanded and narrowly reflexed, the termi- 

 nations converging, parietal wall covered with a thin varnish. 



Alt. 6, diam. 12 mm. 



Alt. 5.3, diam. 11.5 mm. 



Suimura, Awa (Shikoku). Types no. 83378 A. N. S. P., from 

 no. 960 of Mr. Hirase's collection. 



A species with much the contour of Plectotropis, but more like 

 Aegista in sculpture and texture, so that both of us are disposed to 

 refer it to the latter group. It is quite unlike any Japanese species 

 yet described. The aperture reminds one somewhat of Trachia. 

 (Intonsus, unshaven). 



Pyramidida conica Pils. & Hir., n. sp. 



Shell umbilicate, conic, rather thin, dark purplish-brown, closely, 

 finely and rather irregularly striate. AVhorls H, very convex, sepa- 

 rated by a deep suture, the last rounded at the periphery and beneath. 



