HELICOSTYLA. 225 



Group of H. metaformis. 



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



ovularis Mke. fumigata Semp. 



H. rustica Mouss., vii, 187. v. nigrolabiata Mlldff. 



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. m on tan a Semp., vii, 191. H. curta Sowb., vii, 192. 

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



Section Cochlodryas Martens, 1860. 



Coehlodryas MTS., in Die Hel., p. 176, type H. polychroa. Pce- 

 eilus 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. 



helicoides Pfr. chlorogrmnmica Val. 



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



f smaragdm Beck. H. ignobilis Sowb., vii, 180. 



polychroa Sowb. H. boettgeriana Mlldff., vii, 18L 



Section Orustia Morch, 1852. 



Orustia MORCH, Cat. Yoldi, p. 15, in part, first species If. mon- 

 ticula. 



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

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

 vertical, deeply entering. Anatomy typical. Type H. monticula, 

 pi. 54, fig. 5 (see also pi. 53, fig. 1, H. versicolor*). 



Distribution, Luzon. 



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



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



['93, 176. [97. 



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