XXX 



CLASSIFICATION OF HELICES. 



Epiphallogona { 



f American; retractor apical on penisP/eurodo/ife,p.84 

 emb. shell J Camcena, p. 101. 



Old World; re- 

 tractor on epi- 

 phallus 



rather large \ Obba, p. 107. 



f Chloritis, p. 117. 



| Albersia, p. 124. 



erab. shell ) Thersites, p. 125 



minute 



Planispira, p. 110. 

 Papuina, p. 136. 

 Ganesella, p. 168. 



., f Median teeth unicuspid, Cepohs, p. 177. 

 law smooth < . . , t, / -To- 



\ All teeth tricuspid, Polynnta, p. 187. 



I American 



f Lysinoe, 



Belogona - 

 Euadenia 



wide 



tail with serrate keel 



[Jaw ribbed 



L p. 189. 

 j tail smooth above, Epiphragmop- 

 hora, p. 193. 



f lip 



lip simple, thin and sharp, Glyptostoma , p. 

 [ 192. 



C mucus gl. globular, Helicostyla, p. 216. 

 j mucus g!. acicular, C/ilorcea, p. 214. 

 ("Dart sack | mucus gl. sacculated, u/ofa,p. 200. 



present -| ( Aulacospira, p. 



279 



Eur-asian { j minute; anatomy unkown j Pl(f - s ' oma> p . 



I 



I 52. 



Belogona 

 siphon- 

 adenia. 



[No dart sack, shell white, chalky, Leucoclirca,^. 232. 



,,-.,- ... f Geomitra, p. 238. 

 Right eye-retractor passing to left of gemtaha | He i iccUa ^ p . 2 45. 



f shell minute, depiessed, mouth 



round, Vallonia, p. 282. 

 shell minute, elevated, ribbed, 

 f Jaw finely ribbed 

 shell unicolored 

 or one banded ; 

 no diverticulum 



Acanthinula, p. 280. 

 shell opaque with well reflexed 



lip, Helicodonta, p. 284. 

 lip expanded, shell thin, sub- 

 translucent Hygromia, p. 

 [ 269. 



Eye retractor pass J aw smooth > teeth unicuspid ; 5-banded, Allogna- 

 imr between ' J ""<* P- 29 - 



ing between 



branches of 



genitalia. 



Fridolinia, p. 294, 

 Dentellocaracolus, 

 p. 294. 



Eocene-Miocene fossil forms 



Jaw with flat, converging ribs, Leptaxis, p. 291. 



fdart 2-bladed ; divert, attached to 

 Jaw coarse j uterus, ffelicigona, p. 296. 

 [ ribbed "j dart 4-bladed ; diverticulum free, 



[ Helix, p. 311. 



^ n ( Plectopylis, p. 143 {-{- Traumatophora and Stegodera). 



Ir , ,' Gorilla, p. 147. 

 doubtfuK' nj 7 ',' . 1C ^ 

 Ckalepotaxis, p. 167. 



-t sin 



p. 166. 



