304 



HELICIGONA. 



white band bordered above and below by dark bands ; aperture 

 oval, basal lip expanded. Type H. ravergiensis Fer. (pi. 43, figs. 

 24, 25 ; H. narzanemis Kryn.). 



Anatomy unknown. This group of Campylsea-like shells is con- 

 fined to the Caucasus region and adjacent lands to the south. It 

 may prove to belong to the Hygromia series, but is better left here 

 until examined anatomically. The distribution of Frtiticoeampy- 

 Icea is not continuous with that of other Helicigonas. 



H. appeliana Mouss., iv, 85. 



appelinsi Auct. 

 v. mediata West. 

 H. narzanensis Kryn., iv, 84. 



hortensis Menetr. 



ossetinensis Bayer. 



/. bicingulata Bttg. 



/. castanea Bttg. 



/. subunicolor Bttg. 



/. perlineata Mouss. 

 v. suanetica Bttg. 

 v. macromphala Bttg. 

 v. cyclothyra Bttg. 

 v. olivacea Bttg. 

 v. kobensis Bttg. 

 v. depressa Bttg. 

 H. pratensis Pfr., iv, 85. 



bayerii Parr. 



/. unicolor Bttg. 



/. alutacea West. 

 v. perforata West, 

 v. depressa Kob. 

 v. solidior Kob. 



H. joannis Mort., iv, 86. 



dumonti Mort. 

 H. dichrozoua Mart. 

 H. delabris Mouss., iv, 86. 



/. alia West. 

 H. pontica Bttg., iv, 86. 

 H. nymphsea Dub. 

 H. ravergiensis Fer., iv, 85. 



raver gii Kryn. 



ravergieri Bttg. 



limbata Kryu. 



caucasica Pfr. 

 v. persica Bttg., iv, 85. 

 H. transcaucasica Bay., iv, 85. 



/. pygmsea Bttg. 

 H. phseolema Bttg., iv. 87. 

 H. eichwaldi Pfr., iv, 86. 



v. daghestana Parr., iv, 86. 

 H. armeniaca Pfr. iv, 86. 



airumia Siem. 

 ? nivalis Menetr. 

 ? menetriesii Kalen. 



Section Tacheocampylcea PfeifFer, 1877. 



Tacheocampylcea PFR., Malak. Bl., xxiv, 1877, p. 8, type H. ras~ 

 paili Payr. See for anatomy, MOQ.-TAND., pi. 12, f. 11-14. 



Shell depressed with low spire, the body whorl not keeled ; imper- 

 forate or partly covered umbilicate ; smoothish, sometimes hairy ; 

 brownish, yellowish or olive, with two bands above, one below the 

 periphery. Aperture truncate-oblong, very oblique ; outer lip 



