130 REVIEW OF AMERICAN BIRDS. [PART I. 
Thryophilus sinaloa. 
Thryophilus sinaloa, Barrp, 0. 8. 
Hab. N. Western Mexico. 
(Type 23,786, ¢.) Bill shorter than the head. Gonys straight. No scale 
over the nostril. Tarsus longer than the middle toe. Tail well developed; the 
feathers broad, nearly even, the lateral only graduated; the tip extending a 
little beyond the outstretched feet. Wings but little longer than the tail. 
Above dark olive-brown, with slight reddish tinge ; the ramp rufous or dark 
cinnamon; the tail feathers with a shade of the same, still slighter on the 
outer webs of the secondaries. Tail feathers with six or eight pretty well- 
defined narrow, transverse black bands (each about half the width or less of 
the interspaces) ; these most regular on the outer feathers, and apt to be 
broken near the tips of some. The outer primaries edged with grayish; the 
outer webs of the other quills with a series of dusky spots. The under parts, 
lores, and a stripe over the eye are white. The feathers of the sides of the neck 
are white, edged with black, as are the posterior feathers of the superciliary 
stripe running into this neck patch. The ear coverts are grayish-white, ob- 
securely and faintly edged with dusky. The flanks are plain brown, rather 
lighter than the back. The under tail coverts are white, with three or four 
well defined black bands, not quite so wide as their interspaces, and suffused 
along their edges with reddish-brown. Bill light horn color; the lower 
mandible, except the tip, whitish. Legs lighter than the bilf 
(23,786, male.) Total length, 5.00; wing, 2.45; tail, 2.15 ; graduation, .22; 
exposed portion of lst primary, .90, of 2d, 1.30, of longest, 4th (measured 
from exposed base of 1st primary), 1.80; length of bill from forehead, .72, 
from nostril, .40, along gape, .84; tarsus, .83; middle toe and claw, .70; claw 
alone, .20; hind toe and claw, .60; claw alone, 26. 
This species is most closely related to 7. rufalbus, in the white 
under parts and banded crissum. It is, however, much smaller ; the 
upper parts are grayish, instead of cinnamon red; the sides of the 
neck much more conspicuously streaked with black. The lores are 
whitish ; the greater coverts spotted with whitish. 7. ludovicianus 
has different nostrils ; upper parts purplish red ; beneath tinged with 
yellowish. TZ. petenicus, besides many other differences, has the 
tail black, the outer feathers varied only with white. The banded 
and white crissum, more striped neck, deeper bars on the wings, ete., 
distinguish it from modestus. 
Smith- Collec-| Sex | Whe 
sonian| tor’s | and | Locality. Coll ees Received from Collected by 
No. | No. | Age. EA 
93,730 287 |) i! Mazatlan. July, LS6l. |. J. Rantus: 1) 9) 79) 0 eee 
25,786 250] ¢ | B = Caer P= eres 
BA.016 ae of se June, 1862. | Col. A.J. Grayson.| —...... 
29,361 120} ¢ Colima. Feb. 1863.) | J. Rantug. Sse) | ects 
31,822 | 1,657 | of | of ss el io ila RRS Co. 
a a 
