HELICOSTYLA. 223 



H. norrisii Sowb., vii, 143. H. luengoi Hid., viii, 245. 



H. damahoyi Pfr., vii, 143. H. hidalgoi Mlldff., viii, 246. 



samarensis Hid., not Semp. 



H. chrysseme Q,.& M. Nachr.,'93, H. streptostoma Mlldff. Nacbr.,^3 



175. 176. 



H. semperi Mlldff. Nachr., '93, H. trisculpta Mlldff. Nachr., '95, 



175. 97. 



Group of H. mindanaensis. 



H. mindanaensis Sby., vii, 148. H. barfordii Sby., vii, 148. 

 mindana Rve. 

 mindorana Hartm. 



Group of H. melanochila. 



H. pan Brod., vii, 149. H. roissyana Fer., vii, 151. 

 H. depressa Semp., vii, 149. solida Pfr., vii, 153. 



lignaria Pfr., preoc. rossiana Gray. 



v. perdepressa Pils. /. lutea Pils. 



H. melanochila Val., vii, 150. /. subatra Pils. 



brunnea Sowb. H. infuscata Alb., vii, 152. 



H. cblorochroa Sowb., vii, 150. H. xanthobasis Pils., vii, 155. 



H. matruelis Sowb., vii, 151. H. dimera Jonas, vii, 156. 



H. difficilis Pfr., vii, 151. H. crossei Hid., vii, 156. 



H. mainitensis Hid., vii, 152. H. retusa Pfr., vii, 156. 



H. lignicolor Mlldff., vii, 153. H. libata Rve., vii, 157. 



Section Anixa Pilsbry, 1894. 



Axina ALB., Die Hel., p. 113, 1850; v. Mart., 2d edit., p. 71, 

 type H. zebuensis. Not Axina Kirby, 1817 (coleoptera). 



Shell imperforate, solid, dark colored ; varying from depressed 

 and keeled to globose turbinate ; more or less covered with hydroph- 

 anous cuticle ; smoothish, lacking spiral sculpture; lip narrowly or 

 broadly reflexed. Soft anatomy as in Helicostyla generally. Type 

 H. zebuensis Brod. (See pi. 55, fig. 14, H. moreletiana Pfr.). 



These are ground snails, mainly confined to Luzon, Cebu and 

 Siquijor. 



H. garibaldiana D.& S.,vii, 159. H. kobelti Mlldff., vii, 160. 

 H. siquijorensis Brod., vii, 159. H. zebuensis Brod., vii, 161. 

 v- pallens Mlldff. v. striatissima Pils., vii, 162. 



