732 PROCEEDINGS OF THE ACADEMY OF [Oct., 



Eulota lautsi micra n. subsp. 



General shape of E. lautsi. Pale brownish-corneous, unicolored or 

 with a red-brown band on the acute peripheral keel. Smooth, showing 

 faint striation under a lens, with nearly effaced scarcely visible spiral 

 strisB on the dull upper surface, densely striate spirally on the base. 

 Whorls fully six. Outer and basal margins of the peristome expanded, 

 subreflexed ; columellar margin very steeply ascending, dilated above. 



Alt. 5.7, diam. 9.8 mm. ; width of aperture 4.8. of umbilicus 1.8 mm. 



Tapanii, Taiwan. Types No. 89,875 A. N. S. Phila., from No. 1,428 

 of Mr. Hirase's collection. 



Compared with typical lautsi, this form differs in the small size, 

 wider mouth as seen in front view, and narrower last whorl as seen 

 from above, and it wants a white edge on the keel. A small form of 

 lautsi has been recorded by Schmacker and Boettger from Takao. 



The subordination of lautsi to H. shermani Pfr. in Schmacker and 

 Boettger's second discussion of it was apparently an error, H. shermani 

 being a Trocliomorpha. 



Eulota (Plectotropis) inrinensis n. sp. 



The shell is depressed-trochiform, thin, umbilicate, the umbilicus 

 narrow, less than one-fifth the diameter of the shell, rapidly contract- 

 ing within; pale brownish-corneous, lusterless, lightly striatulate, and 

 finely striate spirally, the spirals very delicate, scarcely visible above, 

 more distinct below. Spire low-conic, with nearly straight outlines. 

 Whorls 5j to 5^, somewhat convex, the last acutely carinate at the 

 periphery, convex below, slightly descending in front. Aperture quite 

 oblique. Peristome thin, narrowly expanded, the basal margin deeply 

 arcuate, reflexed. columellar margin dilated above. 



Alt. 5, diam. 8.9 mm. ; width of aperture 4 mm. 



Alt. 5, diam. S mm.; width of aperture 3.8 mm. 



Inrin, Taiwan. Types No. 89,872 A. N. S. Phila., from No.l, 393 of 

 Mr. Hirase's collection. 



Only four specimens of this little Plectotropis were taken. It is 

 closely related to E. lautsi micra, yet differs by the more diminutive 

 size, narrower umbilicus, less dilated columellar lip and paler color. 

 It is decidedly more depressed than E. hehes. 



Eulota (Plectotropis) hebes n. sp. 



Shell trochiform, very thin, umbilicate, pale brown, but slightly 

 shining, weakly striatulate, and showing very fine, weak spiral striae 

 beneath. Spire conic, the apex obtuse. "V\Tiorls 5^, convex, the last 

 strongly carinate at the periphery, the keel projecting but blunt at the 



