CLASSIFICATION OF HKLICES. 



Synopsis of genera of Endodontidcv. 



XXIX 



Endodontidse 



f Polyplacognatha j Return, p. 6. 

 ( Laoma, p. 8. 

 f Flammulina, p. 10. 

 | Phasis, p. 36. 



Haplogona -J Amphidoxa, p. 39. 

 I Endodonta, p. 20. 

 (^ Pyramidula, p. 42. 

 Pararhytida, p. 52. 



Synopsis of genera of Helicidce. 



Protogona < 



Jaw ribbed | 

 N. American -j p 



f Penis retractor trifid, Praticolella, p. 67- 



g . , 



lip well reflexed, Poly- 



<^a, p. 68 

 lip unexpanded, Poly- 



gyrella, p. 78. 



Anat. unknown, f whorls rounded, S. American, Poly- 



S. Amer. Papua. < gyratia, p. 81. 



Shell many-^ whorls keeled, Papuan, Coxia, p. 83. 



whorled. 



Jaw smooth, S. African, Dorcasia, p. 172. 



Keeled, emb. whorls decussate, columella short, 



with convex lobe or tooth, Stylodonta, p. 149. 

 Not keeled, columella concave, lip narrow, Heli- 



cophanta, p. 151. 

 Not keeled, lip very wide, colored, Acavus, p. 



153. 

 Keeled; lip and columella wide, colored, Pyrochi- 



lus, p. 154. 

 Columella narrow, lip not bright, Ampelita, p. 



155. 

 Quoit-shaped, yellow, finely striate, Macrocyclis, 



p. 165. 



Quoii-shaped, dark and solid, Pedinogyra, p. 158. 

 Subtrochiform, rough above, smooth below, Ano- 



glypta, p. 159. 

 Apex spirally lirate, suture crenulate, Caryodes, 



p. 161. 

 Apex beaded or smoothish, suture even, Panda, 



p 163. 



C Thysanophora, p. 54. 

 Teleophallogona -j Sagda, p. 58. 



[Zaphysema, p. 65. 



