( lanadian. 



Colorado west to eastern Oregon (subspecies convexior) 

 south to Arizona < subspecies meridionalis) and San Bernardino 

 Mountains, ( lalifornia. 



Cienaga, South Mission Canon, three miles above forks, 

 San Bernardino Mountains (II. Hannibal). 



PUPIDAE. 



Pupoides chordata i Pfeiffer). 



Fig.; Pupa chordata Binney and Bland, L. & F. W.. Shells 

 X. Am., I. 1869, p. 241, tig-. 408. 



Littoral. 



Coasts of Baja California and West Mexico. 



San Quintin Bay, lat. 30 deg. 24 min. on salt marsh (C. K. 

 Orcutt i tide Orcutt. 



Bifidaria calamitosa Pilsbry. 



Fig.; Pupa calamitosa Pilsbry, Naut., 111. 1889, p. 61, 

 fig. ti. 7. 



Upper Sonoran. 



Near San Diego (C. R. Orcutt) tide Pilsbry; *mouth of 

 San Tomas River, lat. 31 deg. :>.""> min. (II. Hemphill) tide 

 Pilsbry. 



Bifidaria Clementina (Sterki). 



Fig.; Pupa Clementina, Sterki, Naut. IV. 1890, p. 44, PI. I, 

 fig. 4. 



Upper Sonoran. 



*San Clemente Island (II. Hemphill) fide Sterki. 



Bifidaria hemphilli (Sterki . 



Fig.; Pupa Hemphilli Sterki. Naut., IV. 1890, p. 27. PL I. 

 fig. (I. 



Upper Sonoran. 



S;iu Diego (II. Hemphill) fide Sterki; *mouth of San 

 Tomas River, lat. 31 i\r^. 35 min. (II. Hemphill) fide Sterki. 



"Pupa oreutti Pilsbry" 



Orcutt. C. R., W. Am. Scientist, 1891, p.. 27. 



Cooper has supposed this to be the same as Pupoides 

 chordata. It does not seem to have been described. 



Pupa sterkiana Pilsbry. 



Fig.; Pilsbry, Proc. Phila. Acad. Nat. Sci., 1889, p. 412, 

 PL XII. fig. 2. ::. 



1 bpper Sonoran. 



S;m Diego i ( '. R, Orcutt) fide Pilsbry; *Lower California, 

 fide Pilsbry. 

 Vertigo californica (Howell . 



Fig.; Pupa Californica Binney, Manual, 1885, p. b~>4. 

 fig, 140. 



Upper Sonoran. 



57 



