UNIVERSITY OF CALIFORNIA PUBLICATIONS 
IN 
ZOOLOGY 
Vol. 5, No. 8, pp. 307-309 February 21, 1910 
TWO HERETOFORE UNNAMED WRENS 
OF THE GENUS THRYOMANKES. 
BY 
JOSEPH GRINNELL. 
(Contribution from the Museum of Vertebrate Zoology of the University of California.) 
Thryomanes bewicki marinensis, new subspecies. 
Nicasio Wren. 
Typr.—Male adult; no. 7243, Univ. Calif. Mus. Vert. Zool.; 
Nicasio, Marin County, California; February 21, 1909; Annie 
M. Alexander. 
Diagnostic CHARACTERS.—Similar to 7’. b. spilwrus (Vigors), 
of the Santa Cruz faunal area south and east of San Francisco 
Bay, in size, but dorsal coloration brighter brown, of a vandyke 
tone, and flanks and light intervals on ecrissum strongly washed 
with vandyke brown. Similar to 7. b. calophonus Oberholser, of 
western Washington and Oregon, but dorsal coloration brighter 
brown, of a less sooty tone, and size decidedly less. 
MEASUREMENTS OF TyprE.—Wing 51.4; tail, 50.8; 
14.1; bill from nostril, 11.2; depth of bill at base, 2.9; tarsus, 
18.5; anteroposterior diameter of tarsus one-third its length be- 
low tibio-tarsal joint, 1.6; hind toe with claw, 13.4; middle toe 
culmen, 
with claw, 15.2. 
Rance.—The humid coast belt north of the Golden Gate and 
San Francisco Bay, in Marin and Sonoma counties. (I have 
never seen any specimens of Thryomanes from the more northern 
