HELICELLA. 



267 



/. concolor Mts. 

 /. finschiana Mts. 

 /. zeiliana Mts. 

 /. regeliana Mts. 

 H. rufispira Mts., iii, 204. 



v. albidorsalis Mouss. 

 H. samsunensis Zel. 

 H. schotti (Zel.) Pfr. 

 H. schrenki Midd., iii, 200. 



siberica Friv. 

 H. semenowi Mts. 



/. depressa Mouss. 

 H. septemgyrata Mas., iii, 201. 

 H. strigella Drap., iii, 202. 

 sylvestris Alt. 

 altenanct Gartn. 

 fruticosa Parr. 

 cornea Hartm. 



piligera Andr. 



vitrinosa Zgl. 



hexagyra Miihl. 



peregra Parr. 

 v. colliuiana, lepidophora, rus- 



inica, separica, vellavorum, 



ceyssoni, buxetorum, neme- 



tuna, cussetiensis, mehadire, 



agapeta Bgt., briandi, du- 



breili Serv. 

 H. subobstructa Bgt., iii, 196. 



v. distypa West. 

 H. suborbicularis Mts., iii, 203. 

 H. syriaca Ehr., iii, 197. 



onychina Rm., f. 568. 

 H. talyschana Mts., iii, 195. 

 H. theobaldi West. 

 H. transcaspia Bttg., viii, 187. 



Section Lejeania Ancey, 1887. 



Lejeania ANC., Conchol. Exch. i, p. 75, June, 1887, types H. dar- 

 naudi Pfr., isseliana Morel., jickeliana Nev. Pella, in part, of 

 authors. 



Shell narrowly umbilicated, depressed-globose, thin, with the tex- 

 ture of Fruticicola; brown with opaque whitish bands, or opaque- 

 white with dark bands. Lip thin, simple, expanded toward the um- 

 bilical insertion. Type H. darnaudi Pfr. 



Jaw high-arched, with numerous flattened, wide ribs, hardly den- 

 ticulating the margin (pi. 71, fig. 43, H. scioana). Radula having 

 the middle teeth tricuspid, median cusp shorter than basal-plate. 

 Laterals bicuspid ; marginals with the ectocone split (pi. 71, fig. 42, 

 H. scioana~). 



Genital system (pi. 71, fig. 44, H. l&jeaniana) with no retractor 

 on penis, flagellum long. Spermatheca on a short duct. Dart 

 sack short, swollen, inserted on atrium ; mucus glands in two groups 

 of 3 or 4 each (lejeaniana), or wanting apparently (sctoana). 



Distribution, Abyssinia, southern Arabia. My knowledge of the 

 anatomy of this group is from Pollonera's work Boll. Soc. Mal.Ital. 

 xiii, p. 75, pi. 3. The position of the rigid eye-retractor is unknown. 



