40 



Classifications of Worth American Helices. 



devia Gould 



Syn. Baskervillei Pfr. 

 labiosa Gould 



Syn. Columbiana Lea 

 fidelis Gray 

 infuinata Gould 

 Dupetithouarsi Desh. 

 Californiensis Lea 



Syn. vincta Val. 

 Nickliniana Lea 

 tudiculata Binn. 

 arrosa Gould 



olim aeruginosa Gould 

 levis Pfr. 

 Kelletti Forbes 

 Pandorae " 

 cxarata Pfr. 

 reticulata Pfr. 

 redimita W. G. Binn. 

 intercisa " 



ramentosa Gould 

 Ayersiana Newc. 

 Bridgesii " 

 Carpenteri " 

 Mormonum Pfr. 

 Traskii Newc. 

 areolata Sowb. 



Albers, 1860. 

 Die Helieeen. 

 Mesodon 



Aglaja 

 Arionta 



Euparypha 



With this and the 

 following species 

 marked = I am al- 

 most entirely unac- 

 quainted, but they 

 seem to belong to 

 Arionta. 



Helix L. 



34. Aglaja Albers. 



Type. H. Audouini Orb. 



T. umbilicata, orbiculato-convexa, striatula, fasciata ; anfr. 4£-6, ulti- 

 mus antice profunde descendens ; apertura lunato-ovata, valde obliqua ; 

 perist. incrassatum, expanso-refiexnm, album, marginibus conniventibus, 

 columellari dilatato, reflexo, libero, umbilicura partim occultante. 



40. Euparypha Ilartm. 



Type. H. pisana Mull. 



T. perforata, depresse globosa, corneo-calcarea, taeniata ; anfr. 5, supe- 

 riors planati, carinati, ultimus infiatus ; apertura dilatato-lunaris, intus 

 ssepius labiatum, margine columellari, reflexo. Maxilla costis 2-3 

 approximatis, validis. Folliculi mucosi 2. Sagitta 1, coronata, aciebus 

 4 instructa, conica, recta. Capreolus nullus. 



