528 PROCEEDINGS OF THE ACADEMY OF [1899. 



A very peculiar little shell, not like anything hitherto reported 

 from Japan, and probably typical of a new subgenus which pend- 

 ing anatomical details may be subordinated to Eiilota, and thus 

 defined: Coilorus, n. s.-g. Mound-shaped, with numerous narrow 

 whorls, ample umbilicus, and subhorizoutal aperture Avith thin, 

 reflexed, discontinuous peristome. 

 Eulota rudis n. sp. PI. XXI, figs. 4, 5, 6. 



Shell depressed-conoid, umbilicated, the umbilicus a little over 

 one-fifth the diameter of the shell, rather narrow within, rapidly 

 expanded at the last whorl. Solid ; dull reddish brown, with irreg- 

 ular whitish lines and some darker streaks. Surface irregularly 

 striated, the strife stronger at the margin of the umbilicus. Spire 

 conoidal. Whorls 6^, slowly widening, the last whorl rather 

 wider, decidedly descending in front, somewhat tubular. Aper- 

 ture oblique, rounded, slightly excised by the penultimate whorl ; 

 peristome a trifle thickened, the outer lip somewhat expanded, 

 basal and columellar margins more expanded; terminations consid- 

 -erably approaching. 



Alt. 11, greater diani. 14, lesser 12.5 mm.; width of aperture 

 6.5, oblique height 6 mm. 



Omi, Japan (M. R. Gaines). 



A rude-lookiug, dark reddish shell, with somewhat the aspect of 

 a Pyramidula. I know of no closely allied species. 

 Ganesella satsuma n. sp. PL XXI, figs. 20, 21, 22. 



Shell globose trochiform, narrowly and obliquely perforate, thin, 

 translucent, the internal pillar faintly visible through its substance ; 

 whitish-corneous, tinted a little with brown on the base. Surface 

 rather glossy, with light, irregular growth wrinkles, cut by fine, 

 close incised spirals which are distinct on the earlier, subobsolete 

 on the last whorl. Spire elevated, with convex lateral outlines. 

 Whorls 6^, convex, slowly widening, the last distinctly though 

 shortly deflexed in front, rounded at the periphery, convex be- 

 neath, indented around the axis. Aperture oblique; peristome 

 white, expanded, thickened within, the basal and columellar mar- 

 gins reflexed; basal margin straightened, sloping, with a slight 

 callus within ; columellar margin very short, subvertical, concave, 

 dilated and nearly closing the umbilicus, which it wholly conceals 

 from below. 



