GANESELLA. 171 



species were formerly grouped in Pleetotropis, but the lack of dart 

 sack and mucus glands widely sunders them from that group. 



G. ptychostyla Mart., iv, 58. G.'styloptycha Pfr., iv, 58. 

 goniochila Pfr., iv, 58. ptychostyla Pfr. not Mart. 



/. depressior Pfr. 



Subgenus (?) BULIMINOPSIS Heude. 



Buliminopsis HDE., Notes sur les Moll. Terrestr. de la Vallee du 

 Fleuve Bleu, p. 146, type H. buliminus. Conf. v. Molldff., Nachr. 

 d. m. Ges. 1886, p. 195. Rudens HDE., t. c., p. 148. type Funiculus 

 rudens. Pseudo buliminus Gredl., SCHMACKER & BOETTGER, Nachr. 

 D. M. Ges. 1891, p, 164. 



Shell elevated conic, perforated, the spire acute, 7-8 whorls; aper- 

 ture small, oblique, peristome expanded. Soft parts unknown. 



A middle Chinese group of uncertain position. Mollendorff refers 

 it to Satsuma, Ancey to Buliminus, while Heude and Gredler cut the 

 Gordian knot by removing the species from both genera. 



G. pseudobuliminus Hde., iv, 31. G. incerta Pfr. 



B. macrogonus Anc. taivanica Mlldff., iv, 33. 



G. buliminoides Hde., iv, 31. G. quaternarius Hde. 



B. tropidophorus Anc. borealis Hde. on pi. 



G. buliminus Hde., iv, 32. G. conoidea Hde. 



B. helicopsis Anc. G. doliolum Gredl. 



v. pinguis Anc. F. rudens Hde. 



G. macroceramiformis Dh. 



Subgenus (?) COLIO'LUS Tapparone-Canefri, 1887. 



Ann. Mus. Civ. Genov. (2), iv, p. 131. Manual of Conchology 

 (2) vii, p. SI. Not Coleolus Hall, Paleont. N. Y. v, p. 184, 1879. 



Shell elevated- conic, many (eleven) whorled, upper whorls 

 spirally striate, the rest obliquely costulate and setigerous ; apex 

 obtuse, mamillar ; base depressed ; peristome reflexed below, mar- 

 gins distant, connected by a callus. Type C. arfakiensis Tap.-Can. 

 vol. vii, p. 87. 



Soft parts unknown. Inhabits New Guinea. This peculiar snail 

 is considered an ally of Trochomorphoides by Tapparone-Canefri. 

 Perhaps it may prove to belong to the Charopoid series. 



