206 EULOTA. 



Shell umbilicated, depressed, sculptured with striae or riblets ; 

 whorls 5-7, slightly convex, the last usually somewhat angular at 

 periphery. Aperture oblique; peristome thickened within, the 

 upper margin unexpanded, outer and basal margins expanded, 

 columella dilated. Type E. fasciola Dr. (=pyrrhozona Phil.,) pi. 

 55, figs. 6, 7. 



Animal with the tail rounded above, no longitudinal groove. Sole 

 indistinctly tripartite. 



Jaw arcuate, with 3 to 7 weak ribs (pi. 65, fig. 8, pyrrhozona ; 

 pi. 65, fig. 15, przewalskii). 



Radula with blunt mesocones on median and lateral teeth ; mar- 

 ginals with the ectocone simple or bifid (pi. 65, fig. 7 , pyrrhozona ; 

 pi. 65, figs. 16, 17, middle, and 1st, 2d, 10th, 14th, 18th, 23d, and 

 3 marginal teeth of przewalslcii). 



Genitalia: penis slender, ending in a long retractor and the ter- 

 minal vas deferens. Dart sack large, opening into atrium, one 

 dense cluster of about 10 club-shaped, glandular mucus glands in- 

 serted near its base. Spermatheca duct long (pi. 66, fig. 32, E. 

 pyrrhozona). 



Distribution, north and middle China and Central Asia. 

 E. brevispira H. Ad., viii, 208. E. pandynama Mab., viii, 194. 

 E. buddse Hilb., viii, 208. E. pekinensis Dh., viii, 205. 



E. buvigneri Dh., viii, 212. tchiliensis Mlldff. 



richthofeni Mts. /. conoidea Dh. 



E. confucii Hilb., viii, 213. E. przewalskii Mts., viii, 209. 



E. constantise H. Ad., viii, 206. mencii Hilb. 



" constantince," viii, 206. E. pulveratricula Mts., viii, 211. 



E. desgodinsi Bgt., viii, 194. "pulverella " on pi. 



E. giraudeliana Hde., viii, 210. loczyi Hilb. 



E. grseseri Mouss., viii, 205. E. pulveratrix Mts., viii, 211. 



E. gredleri Hilb., viii, 209. E. fasciola Drap. iii, 208. 



stoliczkana Hilb., olim. pyrrhozona Ph., viii, 204. 



E. heudei Hilb., viii, 210. faeiola Dr., iii, 208. 



E. inopinata Dh., viii, 207. E. schensiensis Hilb., viii, 211. 



E. kreitneri Hilb., viii, 211. E. sempriniana Hde., viii, 207. 



E. lutuosa Dh., viii, 212. E. siningfuensis Hilb., viii, 211. 



" lutosa " Try., iii, 208. E. stoliczkana Nev., iii, 250. 



E. magnaciana Hde., viii, 207. E. subrugosa Dh., viii, 211. 

 E. mongolica MlldfF., viii, 206. v. kalganensis Mlldff. 



E. orythia Mts., viii, 210. E. thibetica Dh., viii, 208. 



tibetica Mlldff. 



