106 PROCEEDINGS OF THE ACADEMY OF [Feb., 



nally, with a short, low, curved rib over the spiral part, and a very- 

 faint impressed line parallel to the outer margin. The edge is rather 

 thick. 



Akkeshi, Kushiro, Hokkaido. Types No. 87,768, A. N. S. P., from 

 No. 1,618 of Mr. Hirase's collection. 



This species differs from N. clausa by the color-belts of the shell, 

 the notch between the umbilical pad and the parietal callous, and the 

 faint line parallel with the outer margin of the operculum. It differs 

 from A^. janthostoma Desh. and N. adamsiana Dkr. by the closure of 

 the imibilicus, and in wanting strong grooves on the operculum. 



Torinia densegranosa n. sp. PI. Ill, figs. 15, 16, 17. 



The shell is rather openly umbilicate, depressed-conic, dull light 

 reddish-brown, with some indistinct darker and yellowish spots along 

 the periphery. The spire is low-conic, apex obtuse; whorls 5+, but 

 slightly convex, the last rounded peripherally. The sculpture con- 

 sists of unequal flattened spiral cords and threads, cut by very fine, 

 close and regidar radial grooves. The cords are rather wide and flat 

 except near the periphery, where two or three of them are convex and 

 slightly prominent. Four spiral cords are visible on the upper surface, 

 with a thread between the third and fourth. On the periphery there 

 are two with a thread between them. On the base there are five ; the 

 outer one smaller, with a thread on each side of it, the umbilical cord 

 coarsely crenate, the next outer one with only about half as many 

 radial incisions as the following cords. There is a fine, not very dis- 

 tinct, spiral striation over the coarser sculpture described. The aper- 

 ture is notched at the termination of the umbilical cord. The opercu- 

 lum is a conic stack of thin yellow lamell2e. 



Alt. 5, diam, 8.5 mm. 



Fukura, Awaji. Types No. 88,306, A. N. S. P., from No. 1,568 of 

 Mr. Hirase's collection. 



Chiefly notable for the close radial sculpture. The sculpture of the 

 base, omitted in fig. 16, is shown enlarged in fig. 17. 



Cingula kurilensis n. sp. PI. IV, fig. 31. 



Shell minutely perforate, ovate-conic, dark brown with more or less 

 extensive, eroded, ashen patches, sometimes the whole surface eroded. 

 Marked with fine, inconspicuous growth-lines where unworn. Whorls 

 5, convex, the last ventricose. Aperture roundly-ovate, slightly sub- 

 angular. Peristome thin and simple, continued in an adherent_callous 

 across the parietal wall. Columella arcuate. 



Length 3.3, diam. 2, longest axis of aperture 1.7 mm. 



