1920] 



Swarth: Revision of Aviun Genus Passerelki 



177 



County, south through Tulare County ; on the summit of Mount Piiios, 

 Ventura County ; in the San Gabriel Mountains, Los Angeles County ; 

 the San Bernardino Mountains, San Bernardino County; and the San 

 Jacinto Mountains, Riverside County. The winter home is unknown. 

 Specim.e7is exmnined. — 186 (see list, pp. 209-211). 



A Fasserelln iliaca siephensi 

 Passerella iliaca hrevicauda 

 D Passerella iliaca monoensis 



Fig. CC. Map showing winter oceurrence of FassereUa iliaca stephensi, P. i. 

 brevicauda, and P. i. monoensis in California, as established by specimens exam- 

 ined by the author. Note the restriction of hrevi^oauda to the near vicinity of the 

 coast. The locality stations for stephensi denote the capture of but four specimens, 

 apparently stragglers from the still unkno^vn main winter habitat. 



Distinguishing characters. — Of the Schistacea group (see p. 89). 

 Most nearly like mariposae, from which it is distinguished by slightly 

 greater general size and notably large bill (see fig. E). The enor- 

 mous bill distinguishes stephensi from all other fox sparrows except 

 hrevicauda. From the latter it is distinguished by rather longer, 



