22 The Wilson Bulletin — No. 110 



Type locality. — Nachoguero A^allev, Dortliern Lower 

 California. 



Geographic distribution. — Southwesterii California 

 and northern Lower California ; north to central Tulare 

 County, San Benito County, and northern Monterey Coun- 

 ty; west to the Pacific coast; south to northern Lower Cal- 

 ifornia at about 30 degrees north latitude; and east to the 

 San Jacinto Mountains and eastern Kern County. 



Remarks. — Birds from northern Lower California rep- 

 resent the extreme of the grayish differentiation of this 

 race. Those from Los Angeles County are somewhat more 

 rufescent and incline thus toward Thryomanes beioickii 

 drymoecus. This is still more the case with birds from 

 San Luis Obispo County, which we have previously re- 

 ferred to the latter form, but which now, with much ad- 

 ditional material, Mr. Swarth has placed with the present 

 subspecies. The breeding birds from the vicinity of Mont- 

 erey, Pacific Grove, and Seaside on the southern side of 

 Monterey Bay in northern Monterey County, which on a 

 previous occasion we referred to Thryomanes beivickii 

 spilurus, are decidedly more grayish than that race, and 

 are indeed very much like Thryomanes beioickii charien- 

 turus from Lower California, although somewhat darker 

 and with a slightly shorter tail. Mr. Swarth records and 

 maps specimens from Monterey and Pacific Grove,^ Cali- 

 fornia, as Thryomanes beivickii spilurus, but the specimens 

 which passed through his hands bear the identification 

 Thryomanes beioickii charienturus, in which identification 

 we concur. This is further substantiated by a consider- 

 able additional series from both Pacific Grove and Seaside. 

 It is interesting to note that with this addition, the north- 

 western limit of the range of Thryomanes beioickii charien- 

 turus along the coast becomes substantially the same as 

 that of Toxostoma rediviva rediviva.^ 



'Proc. Calif. Acad. Sci., ser. 4, VT, No. 4, p. 67, pi. 2. 

 ^'Auk, XXXV, June, 1918, p. 53. 



