BULIMULUS. 1G1 



obscurus, Mill, rupestris, Phil. 



pretiosus, Cantr. subtilis, Bossm. 



ruiistrigatus, Bens. vibcx, Ilvtt. 



Sub-gen. omphalostyla, Schlatter (Nsesiotus, Albers). 



Sbell somewhat widely perforate, ovately conical, or turreted- 

 oblong, rugulosely striated ; columella vertical ; aperture some- 

 what angulated at tbe base ; peristome acute, internally sub- 

 labiate. 



acbatinellus, Forbes. nucula, Pfeiff. 



cbemnitzoides, Forbes. mix, Brod. 



clavus, Soiv. rugiferus, Sow. 



corneus, Sow. rugulosus, Sow. 



Darwinii, Pfeiff. sculpturatus, Pfeiff. 



escbariferus, Sow. unifasciatus, Sow. 



incrassatus, Pfeiff. ustulatus, Brod. 

 Jacobi, Sotv. 



Sub-gen. ataxus, Albers. 



Sbell umbilicated, umbilicus very wide, pervious as far as tbe 

 apex, ovately conical; last wborl strongly compressed, angulated 

 at the base; aperture narrowed, oblong, sub-augulated at the 

 base; peristome simple 



infundibulum, Pfeiff. umbilicaris, Soul 



perspectivus, Pfeiff. 



Sub-gen. napjsus, Albers. 



Shell perforate, ovate-oblong, irregularly striated; aperture 

 rotundately oval ; peristome acute, expanded, internally labiate, 

 the margins joined by a tuberculated callus. 



badiosus, Ferns. Bertheloti, Pfeiff. 



baeticatus, Fetus. cyaneus, Albers. 



