510 University of California Publications in Zoology [Vou. 17 
Measurements.—Average of 10 males: Wing, 71.1 mm.; tail, 69.3; 
exposed culmen, 8.1; depth of bill at base, 3.7. For extremes, see 
accompanying table. 
Range.—The higher mountains of eastern California lying east 
and southeast of Owens Valley, from the vicinity of the Mono Craters 
and the White Mountains, in Mono County, south to the Panamint 
Mountains, in Inyo County. Specimens examined, 50, from the fol- 
lowing loealities, all in California: 
Mono County: Mono Mills, 1; near Benton, 2; near Big Prospector Meadow, 
10,000-10,500 ft., White Mts., 15; Cottonwood Creek, 9200 ft., White Mts., 1. 
Inyo County: Silver Canyon, 7000-8000 ft., White Mts., 8; Roberts Ranch, 8300 
ft., White Mts., 1; head of Black Canyon, 8000 ft., White Mts., 2; Independence, 
3900 ft., 1 (vagrant); Mazourka Canyon, 8000-10,000 ft., Inyo Mts., 3; near 
Jackass Spring, 6000-6200 ft., Panamint Mts., 14; Hanaupah Canyon, 7500-9000 
ft., Panamint Mts., 2. 
Penthestes gambeli abbreviatus, new subspecies 
Short-tailed Mountain Chickadee 
Parus montanus, of authors, part. 
Parus gambeli, of authors, part. 
Penthestes gambeli, of authors, part. 
Type locality—Horse Creek, Siskiyou Mountains (near Seiad 
Valley P. O.), Siskiyou County, California. Type, male, no. 119 
(orig. no., in coll. J. Grinnell) ; December 12, 1901; collected by Mal- 
colm P. Anderson. 
Diagnosis —Tone of color on sides, flanks and back the same as in 
inyoensis, though not quite so pale, namely, in fresh plumage, cartridge 
buff. Tail (see figs. 2,3) much shorter than in either gambeli or inyo- 
ensis ; and bill averaging smaller than in any of the other three races. 
Measurements—Average of 14 males: Wing, 69.7 mm.; tail, 65.0; 
exposed culmen, 7.9; depth of bill at base, 3.8. For extremes, see 
accompanying table. 
Range—The higher mountains of central and northern California, 
southern Oregon (probably this subspecies), and northwestern Ne- 
vada. Occurs west in northern California through the Siskiyou and 
Salmon mountains and to South Yolla Bolly Mountain and Mount 
Sanhedrin; and south in the Sierra Nevada to the vicinity of Mount 
Whitney. Specimens examined, 182, from the following localities : 
