74 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



of drymoecus is included in that of T. b. charienturus. Con- 

 ceding that drymoecus is not as sharply defined a race as cer- 

 tain other forms of the species, still the disposition accorded 

 it under this latter ruling is certainly unsatisfactory, and not 

 tending to assist to an understanding of existing conditions. 

 The wren of the Sacramento Valley is as widely different from 

 charienturus of southern California as is the northern coast 

 bird, to which it is more nearly related. If it is not deemed de- 

 sirable to recognize these slightly differentiated forms in the 

 Check-List, a better compromise would be effected by extend- 

 ing the range of spihiriis to include the Sacramento Valley 

 and central Sierra Nevada, that of charienturus to extend 

 through the San Joaquin Valley. Such treatment would be 

 nearer the truth than is the present accepted arrangement ; but 

 even so, there would be encountered the difficulties and dis- 

 crepancies bound to arise in the attempt to define by rigid 

 lines the many fluctuations encountered in the birds of these 

 wide and varied regions. 



Thryomanes beivicki charienturus Oberholser 



Type locality — Nashoguero Valley, Lower California 

 (near Mexican and United States boundary line). 



Range — Coast region of southern California, south from 

 San Benito County and into northwestern Lower California. 

 Breeds mainly on the coastal slope, but in winter is found 

 eastward to the western edges of the Colorado and Mohave 

 deserts, as at Palm Springs, Victorville and Barstow. 



Specimens examined from the following localities : San 

 Benito County: Paicines, 13; Mulberry, 4. San Luis Obispo 

 County: Paso Robles, L Santa Barbara County: Santa 

 Barbara, 2 ; Lompoc, 4 ; Point Conception, 1 ; Santa Inez 

 River, \. Ventura County: Mount Pinos, 1; head of Piru 

 Creek, L Tulare County: Cannell Meadow, 1; Monache 

 Meadow, 1 ; Trout Creek, 7. Kern County : Weldon, 3 ; 

 Onyx, 3 ; Isabella, 2 ; Bodfish, 2 ; Walker Pass, 3 ; Piute Moun- 

 tains, 4. Los Angeles County: Pasadena, 91 ; San Fernando 

 Valley, 19; Santa Monica Mountains, 3; Sierra Madre, 3; 

 Monrovia, 1 ; San Gabriel Mountains, 6 ; San Francisquito 



