GANESELLA. 169 



is absent, and the spermatheca duct is inserted higher on vagina. 

 The shell has somewhat the contour of Papuina. The anatomy of 

 the group has been a complete surprise to me, for I had relegated it 

 to the Eulota group before dissecting specimens. It is now per- 

 fectly clear that it belongs in the vicinity of Chloritis and Papuina, 

 and is the most northern in distribution of that group of genera. 

 Probably some of the species now referred to Ganesella will prove to 

 belong to other groups, such as the East Asian Fruticicoloid sec- 

 tion. 



There is much variation in contour, number of whorls, size and 

 umbilicus among the members of this genus ; and a subdivision of 

 it into sections will no doubt be made eventually. It is to be hoped 

 that such division will not be attempted until it can be placed on a 

 firm footing by the examination of the anatomy of many species; 

 and anatomical data are also required before the boundary line be- 

 tween Ganesella, Eulota, Plectotropis and the East Asian Fruticico- 

 las can be definitely drawn. In some cases the shell alone is not 

 sufficiently characteristic to base the classification of these groups 

 upon, even when the relationships of the main types have been 

 elucidated. 



Japanese, Liukiu Is. and Formosa species. 



G. papilliformis Kob., iii, 217. G. conella Ad., iv, 56. 



G. japonica Pfr., iii, 218. G. lischkeana Kob., iii, 220. 



? vitracea Fer., vii, 106. G. peculiaris A. Ad. 



G. conospira Pfr., iii, 218. G. gibbosa A. Ad. 



G. tabuensis Anc., iii, 218. G. ? serotina A. Ad. 



patruelis Ad. not Ang. G. sphserulata Reinh. 



G. sphinctostoma Ad., iii, 218. G. largillierti Ph., iii, 218. 



G. cardiostoma Kob., iii, 219. immaculata A. & R. 



G. hilgendorffi Kob., iii, 219. G. albida Ad., iii, 218. 



G. verrucosa Reinh., iii, 219. G. fulvicans H. Ad., iii, 220. 



G. macrocycloides Kob., iii, 219. G. sphseroconus Pfr., viii, 200. 



G. eumenes West., viii, 199. v. campochilus Pils., viii, 201. 



G. goodwini Sm., iii, 219. G. scsevola Mts., vi, 306. 

 G. conulina Mart., iii, 219. 



Chinese specie*. 



\. gradata Mlldff. G. alveolus Hde. 



r. brevibarbis Pfr., iii, 221. G. ternaria Hde. 



