HELICOSTYLA. 225 



Group of H. metaformis. 



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



ovularis Mke. fumiyata 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. unicaPfr.,vii, 189. 98. 



Group of H. fenestrata. 



H. moDtana 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. polyehroa. Pce- 

 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. 



helicoides Pfr. ehlorogrammica Val. 



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



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



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



Section Orustia Morch, 1852. 



Orustia MORCH, Cat. Yoldi, p. 15, 'in part, first epccies H. 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 Mlldft'. Nachr. '95, 



['93, 176. [97. 



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