480 PROCEEDINGS OI" THE ACADEMY OF [July, 



Xisliigo, province Uzpii (]Mr. Y. Hirase). Types No. 79,725 

 Coll. A. K S. P., from No. 4606 of Mr. Hirase's collection. 



Distinguished by the pale color, subobsolete lunella, and absence 

 of any lower palatal plica. It is closely related to G. mleropea-s, 

 from which the shorter principal plica separates it. 



Clausilia micropeas var. hokkaidoensis Pilsbry. PI. XXVIII, figs. 47, 48, 49. 

 C. hokkaidoensis Pils., Nautilus, XIV, p. 103 (January, 1901). 

 Shell similar to var. jierpallida except in the following charac- 

 ters: it is of a light brown color; the spire is a little less attenuated 

 above; the peristome and superior lamella are thinner; the spiral 

 and inferior lamelke penetrate somewhat deeper; and the lunella 

 is more distinctly developed, narrow and straight, extending down- 

 ward to the position of the (wanting) lower palatal fold. Whorls 



Length 11.2, diani. 2.3 mm. 



Length 10, diam. 2.2 mm. 



Kayabe, Ojima, Hokkaido Island. Types No. 79,321 Coll. 

 A. N. S. P., from No. 5466 of Mr. Hirase's collection. 



This is the HemiiihcBdum referred to in these Proceedings for 

 1900, p. 674, as occurring with C. monelasmus. I at first consid- 

 ered it specifically distinct, but am now disposed to look upon it as 

 merely a northern race of C. micropeas of Hondo Island. It 

 tapers more than C. micropeas which has a somewhat cyliudric 

 contour. 



Group of C. aivajiensis. 



Clausilia harimensis Pilsbry. PL XXVI, figs. 16, 17, is. 

 Pilsbry, Nautilus, XIV, p. 108. 



Shell rimate, slender, gradually tapering to a rather acute apex, 

 light brown, finely and weakly striate, more strongly and regu- 

 larly so on the last two whorls, especially t^ie last one. Spire 

 gradually tapering, the last two whorls of about equal size. 

 Whorls slightly over 9, moderately convex. Aperture trapezoidal- 

 piriform, sinulus well developed; peristome thin, whitish, narrowly 

 reflexed, continuous, emarginate at the position of the superior 

 lamella. Superior lamella marginal, rather high but slender, 

 oblique, disconnected from or sul)Continuous with the spiral lamella. 

 Spiral lamella ascending to a merely ventral position, very high 

 inside. Inferior lamella deeply immersed, visible in an oblique 



