SYNOPSIS OF GROUPS. 



123 



Group HAPLOGONA Pils. 



3, Flammulina Mart., 10. 



Phacussa Hutt., 12. 

 ThalassoheUx Pils., 12. 

 Gerontia Hutt., 14. 

 Allodiscus Pils., 14. 

 PyrrhaHutL, 15. 

 Therasia Hutt,, 15. 

 Phenncohelix Sut., 16. 

 Suteria Pils., 17. 

 Flammulina Mart., 17. 

 Hedleyoconcha Pils., 18. 

 Monomphalus Anc., 19. 

 Rhytidopsis Anc., 20. 

 Carthcea Hutt, 339. 



4, Phasis Alb., 36. 



Trac/n/c^Pils.,37. 

 ? Sculptaria Pfr., 39. 



5, Amphidoxa Alb., 39. 



Stephanoda Alb., 40. 



6, Endodonta Alb., 20. 



Diglyptus Pils. 22. 

 Libera Garr., 23. 

 Endodonta Alb., 24. 

 Thaumatodon Pils., 26. 



Group . 



8, Pararhytida Anc., 52. 



Platyrhytida Ckll., 342, 53. 



Family HELICIDJE Pilsbry (vol. ix, p. xxviii). 

 Group PROTOGONA Pils., xxxii (Polygyrince). 



Nesophila Pils., 27. 

 Ptychodon Anc., 27. 

 Helenoconcha Pils., 28. 

 JSrazieria Anc., 29. 

 Phenacharopa Pils., 29. 

 jEschrodomus Pils., 30. 

 Paratrochus Pils., 31. 

 ? Coliolus Tap.-Can., 171. 

 Charopa Alb., 31. 

 Acanthoptyx Anc., 35. 

 Tropidotropis Anc., 36. 

 Pterodiseiis Pils., 36. 

 7, Pyraraidula Fitz., 42. 

 Pyramidula Fitz., 43. 

 < Microconus Streb,, 340. 

 Pa^/a*fraPfr., 44. 

 Planogyra Morse, 45. 

 Gonyodisciis Fitz., 45. 

 Lyrodiscus Pils., 341. 

 Lynda Woll., 341. 

 Patula Held., 48. 

 Atluntica Anc., 50. 

 Helieodiscus Morse, 51. 



1, Praticolelhi Mart., 67. 



2, Polygyra Say, 68. 



Polygyra Say, 71. 

 Triodopsis Raf., 74. 

 Stenotrema Raf., 77. 



3, Polygyrella Binii., 78. 



Ammonilella Coop., 80. 



4, Polygyratia Gray, 81. 



Systrophia Pfr., 83. 

 ? Coxia Anc., 83. 

 ? Solaropsis Beck, 166. 



5, Dorcasia Gray, 172. 



