PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 113 



greater length of the feathers ; outer pair of rectrices broadly barred 

 with white for at least the termiual half (sometimes the whole leugth), 

 and next pair with several broad bars across the terminal i^ortion. 

 Adult 9: Similar to the .?, but without the red crown patch. Wing, 

 5.00-5.30 ; tail, 3.50-3.90 ; culmen, .95-1.25 ; tarsus, .90-.95. 



This is the only species of the genus iu which the female has neither 

 red nor yellow anywhere about the head or neck, and iu which the lat- 

 eral tail-feathers are banded for the greater part of their leugth, and the 

 ui)per tail-coverts transversely barred. 



Among thirteen adult males now before me I find considerable varia- 

 tion, which, however, affects chiefly the color of the nape, the exact 

 shade of color pervading the head and lower parts, and the size and 

 shai)e of the red crown-spot. In two specimens (7G735, Fort Yuma, 

 Dr. A. L. Heermann, and 40G83, Camp Grant, Arizona, March 20, 

 18G7, Dr. E. Palmer), the nape inclines very strongly to a light ful- 

 vous-bufl", strikingly different iu color from the occiput, sides of the 

 crown, etc. Usually the nape is similar in tint to the breast, but of a 

 decidedly darker shade, this being particularly the rule iu fall speci- 

 mens, in which the colors are darker and the texture of the feathers 

 softer than in spring and summer. The exact tint varies greatly, how- 

 ever, the darkest example (Xo. 07153, Pueblo Viejo, New Mexico, Sep- 

 tember 19, 1873, C. J. Newberry), having the nape a deep sepia-drab, 

 while iu the lightest (No. GL29, Camp Yuma, California, A. Schott), it 

 is a light ochraceous-buff, the lower parts being also much i^aler than 

 usual. Summer sjiecimeus, having the plumage more worn and bleached 

 than those killed in the fall or winter, are of course paler colored. The 

 exact shape and extent of tlie red crown-patch vary greatly in differ- 

 ent examples, but this may be owing in a great measure to the "make" 

 of the skin. 



8. CENTURUS HYPOPOLIUS. 



PicKS hypojioliufi, Wagl. Isis, 1829, 514. 



Zebrapicus liypopoUus, Malii. Mem. Ac. Metz, 1848-'9, 361 ; Mon. Pic. ii, 1862, 228 ; iv, 



pi. 103, figs. 4, 5 ( ^ ami 5 ad.). 

 Ceniiirus hypopoUus, Light. Nomencl. 1854, 76. — Keich. Handb. 1854, 410, pi. 66^y, 

 figs. 4413-14 ((? & 9 ad.).— Lawr. Bull. U. S.Nat, Mus. no. 4, 1876, 35 (Cha- 

 pulco, Pueblo). 

 Pkzebre alezan cendr^, Malh. 11. c. 



Hal). — Southern Mexico. 



Adult $'. Head, neck, and lower parts, back to fla'>ks and anal re- 

 gion, deep smoky gray, or purplish drab, darkest on the head above, 

 and nape ; forehead, chin, and throat lighter, the first inclining to soiled 

 white ; eyelids surrounded by a blue-black circle, separated posteriorly 

 by white on the upper eyelid; crown with a quadrate patch of crim- 

 son, and lower part of auriculars tinged with the same. Back and 

 scapulars barred with glossy black and brownish white, wing-coverts 

 and secondaries barred with purer white, the white bars broader on 

 Proc. Nat. Mus. 81 8 June 2, 1881. 



