HELICOSTYLA. 225 



Group of H. metaformis. 



H. metaformis Fer., vii, 186. H. fuligiuata Mts., vii, 188. 



ovularis Mke. fumigata Semp. 



H. rustica Mouss., vii, 187. v. nigrolabiataMlldflf. 



H. hydrophana Sowb., vii, 187. H. lacera Pfr., vii, 189. 



H. butleri Pfr., vii, 188. H. rehbeini Pfr., vii, 190. 



H. languida Pfr., vii, 189. H. roebeleni Mlldff., Nachr., '95, 

 H. unica Pfr., vii, 189. 98. 



Group of H. fenestrata. 



H. montana Semp., vii, 191. H. curta Sowb., vii, 192. 

 H. fenestrata Sowb., vii, 192. v. dilatata Pfr., vii, 193. 



Section Cochlodryas Martens, 1860. 



Cochlodryas MTS., in Die Hel., p. 176, type H. polychroa. Pue- 

 cilus ALB., mss. 



Elevated, vividly colored species lacking hydrophanous cuticle, 

 and with a distinct subsutural band which is generally white. Type 

 H. polychroa, (=viridostriata) pi. 53, fig. 10. 



H. florida Sowb., vii, 177. H. orbitula Sowb., vii, 179. 

 helicoidesPi'r. chlorograrnmica Val. 



H. viridostriata Lea, vii, 178. H. tenera Sowb., vii, 179. 



? smaragdus Beck. H. ignobilis Sowb., vii, 180, 



polychroa Sowb. H. boettgeriana Mlldff., vii, 181. 



Section Orustia Morch, 1852. 



Or ast ia MORCH, Cat. Yoldi, p. 15, in part, h'r.<t species H. mon- 

 ticula. 



Shell imperforate, turbinate-globose, not spirally striated, banded, 

 ivith hydrophanous cuticle; lip thin, narrowly reflexed ; columella, 

 vertical, deeply entering. Anatomy typical. Type H. inonticulu^ 

 pi. 54, fig. 5 (see also pi. 53, fig. 1, H. ver-ncolor}. 



Distribution, Luzon. 



H. monticula Sowb., vii, 176. H. versicolor Mlldff., viii, 246. 



H. pulchella Mlldff., Nachr. H. strigata Mlldff. Nachr. '95, 



['93, 176. [97. 



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