254 NELSON, Mew North American Birds. ly 
of head to upper part of neck cinnamon brown; chin and throat white; 
under side of neck along median line dingy grayish brown shading into 
surrounding color; breast deep, dark cinnamon brown becoming darker 
and browner on sides, and clearer, paler cinnamon along median line; 
abdomen, flanks and under tail-coverts mixed buffy, whitish and dull cin- 
namon obscurely and coarsely barred with blackish. 
Dimensions of type. — Wing, 166; tail, 56; culmen, 29; tarsus, 52. 
Description of adult female from type locality. — Crown rusty, grayish 
brown (becoming bright rusty brown on nape) and obscurely barred with 
black; back and sides of neck bright rusty cinnamon; middle of fore part 
of shoulders tawny, sepia brown becoming dark cinnamon brown on 
sides; interscapular region dark umber brown shading into cinnamon on 
upper tail-coverts with entire back coarsely and obscurely barred with 
black; upper surface of wings slaty blackish coarsely barred with tawny 
cinnamon; sides of head tawny cinnamon with a vinaceous shade on 
adjacent part of neck; chin and throat white; under side of neck dark 
ashy washed with rusty brown; breast bright rusty cinnamon, darkest on 
sides and palest next abdomen; abdomen and flanks dull buffy, ob- 
scurely and coarsely barred with blackish; under tail-coverts deep buff 
coarsely maculated with black. 
Dimensions of female.— Wing, 165; tail, 54; culmen, 29; tarsus, 52. 
General notes. — The darker color and absence of black bars 
on wings and fore back of the males separate this bird at once 
from its nearest ally, C. mexicanus. The females are less distinct ; 
the darker back and brighter colored nape and neck of C. inorna- 
tus suffice, however, to distinguish it at a glance. 
Both Crypturus mexicanus and C. occidentalis inhabit the low, 
scrubby thickets of arid tropical districts and may be distinguished 
from their Mexican congeners of the more humid districts by their 
much paler colors. The general resemblance of C. mexicanus of 
Tamaulipas in eastern Mexico to C. occidentalis of 'Tepic, on the 
opposite side of the Continent, but living in very similar climatic 
conditions, is much greater than that of C. mexicanus to C. inor- 
natus living in contiguous districts but with marked climatic 
differences. 
Dendrortyx macrourus dilutus, subsp. nov. MICHOACAN 
Woop GRousE. 
Type, No. 155562, ¢ ad., U. S. Nat. Mus., Biological Survey Collection. 
Patzcuaro, Michoacan, Mexico, August 2, 1892, E. W. Nelson. 
