116 



REVIEW OF AMERICAN BIRDS. 



[part I. 



B. Back and top of head nearly uniform grayish-brown ; sides 



of head whitish, varied with light-broAn. Size very small pusilla. 



Heterorhina prostheleuca. 



Scytalopus prosthehucus, Sclater, P. Z. S. 1856, 290 (Cordova).— Q/pAo- 

 rinus prostheleucus, Sclatek, P. Z. S. 1858, 64, 96 ; 1859, 363, 372 

 (Oaxaca).— Ib. Catal. 1861, 20, no. 125.— Salvin, Ibis, II, 1860, 

 272 (Guatemala). 



(28,042.) Above brown, passing into deeper rufous to the upper coverts, 

 and into reddish olivaceous on top of head. Chin and throat pure white, 

 passing into a duller white behind ; the sides of breast plumbeous ; sides of 

 belly, with the crissum, rufous brown like the rump. A distinct white line 

 from bill over eye to nape, bordered above by an obscure black band. All 

 the feathers of side of head and neck are black, with a rounded white spot 

 near the end ; there is quite a distinct black line from base of lower jaw 

 margining chin and throat ; the lores are black. The tail feathers and ex- 

 terior webs of secondary quills are rufous, with narrow black bars (these bars 

 narrower than the interspaces). The primaries black, with brownish-gray 

 spots along their outer edges (outermost edged continuously with gray). The 

 greater and middle wing coverts are blackish, many of them with a small 

 white spot near their tips. The bill is black ; legs brown. 



Total length, 4.40 ; wing, 2.20 ; tail, 1.60 ; exposed portion of 1st primary, 

 .85, of 2d, 1.35, of longest (measured from exposed base of 1st primary), 1.70 ; 

 length of bill from forehead, .65, from nostril, .44, along gape, .80 ; tarsus, .84 ; 

 middle toe and claw, .70 ; hind toe and claw, .61 ; claw alone, .27. 



In No. 28,042, one of the tail feathers is entirely white, and there 

 is a white feather on the scapulars ; this, however, is evidently 

 abnormal. 



Other specimens, from Mexico and Guatemala, are similar, but 

 vary somewhat in the degree of purity of white beneath, and in the 

 shade of rufous above. One (91, Lawrence collection) has the black 

 band margining the top of head wider, so as to leave only a small 

 central interspace of brown. This specimen, too, has the bill longer 

 than in others. 



Locality. 



Chitctnm, Vera Paz. 

 Mexico. 

 Mirador, Mex. 

 Guatemala. 



When 



Collected. 



Received from 



0. Salvin. 

 Verreaux. 

 Dr. C. Sartorius. 

 Cab. Lawreuce. 



Collected by 



