HELICID^, 111 



46. Bulimulus (Thaumastus) confinis, Rv. 



(var. B. liquabilis. Rv., fide Cr. and F.) 

 3 Texas; ex c. Prof. W. Nowcomb. 



47. Bulimulus (Thaumastus) dealbatus, Say. 



ifide Binn., var. B. confinis and B. liquabilis, Rv.) 

 12 Texas ; ex c. Rev. E. R. Beadle and Prof. W. Newconib. 



48. Bulimulus (Thaumastus) exilis, Gm. 



[= B. giuidalou.jjciisis, Ferussac] 



5 West In4ies ; ex c. Eveiior Dupout, Esq., and G. Nevill, Esq. 

 1 GuadaloUpe ; ex c. Prof. W. Newcomb. 



49. Bulimulus (Thaumastus) schiedeanus, PfPr. 



1 Texas ; ex c. Rev. E. R. Beadle. 



50. Bulimulus (Thaumastus) alternatus, Say. 



[= B. mariei, Alb.] 



2 Texas ; ex c. Dr. F. Stoliczka. 



1 Mexico ; ex c. Dr. F. Stoliczka. 



Sub-Genus ATAXUS, Alb. (type j5. umbilicaris, Soul.) 



51. Bulimulus (Ataxus) infundibulum, PfeifFer. 



1 Peru ; ex c. A. Morelet, Esq. 



Sub-Genus MOBMUS, Alb. (type B. papyraceus, Mawe.) 



52. Bulimulus (Mormus) papyraceus, Mawe. 



[= B. lita, Desh.] 



2 Brazil ; ex c. F. L, Layard, Esq. 



53. Bulimulus (Mormus) hegewischi, Pfeiffer. 



1 Mexico ; ex c. A. Morelet, Esq. 



54. Bulimulus (Mormus) jussieui, Hupe. 



2 Peru; ex e. A. Morelet, Esq. 



55. Bulimulus (Mormus) jonasi, Pfeiilcr. 



3 Guatemala ; ex c. A. Morelet, Esq. 



