212 Todd, The Genus Eupsychortyx. [April 



Colinus cristatus littoralis Chapman, Bull. Am. Mus. Nat. Hist., XXXVI, 



1917, 198, in text (Bonda, Colombia; crit.). 



Subspecific characters. — Similar in general to Eupsychortyx leucopogon 

 decoratus, but the male paler throughout, the throat buffy, more or less 

 deeply shaded with ochraceous tawny or amber brown, but not distinctly 

 bicolor; the breast also decidedly paler, more russet; female also slightly 

 paler, and not so heavily marked below, the throat nearly or quite im- 

 maculate. 



Measurements. — Adult male (eight specimens) : wing, 100-106 (average, 

 103); tail, 57-63 (60); bill, 11.5-13 (12.5); tarsus, 27-32 (29). Female 

 (eight specimens): wing, 97-105 (101); tail, 55-65 (61); bill, 12-13 (12.5); 

 tarsus, 27-30 (29). 



Range. — Lower Tropical Zone of the Santa Marta region of Colombia. 



Remarks. — Santa Marta specimens received from Mr. Herbert H. 

 Smith were referred by Dr. Allen to E. leucopogon without com- 

 ment, but, as we now know, the "leucopogon" of the "British 

 Museum Catalogue" is composite, comprising two recognizably 

 distinct races, leucopogon and leucotis, to neither of which the 

 Santa Marta specimens can properly be referred. From the 

 former they differ in much paler coloration throughout, the upper 

 parts being washed with vinaceous anteriorly and with grayish 

 and buffy posteriorly, the scapulars and tertials conspicuously 

 margined with white or buffy and spotted and blotched irregu- 

 larly, together with the lower back, with black and brown. In 

 leucopogon the general tone of the upper parts is much deeper, 

 so that the black and brown markings are not in such evident 

 contrast; the white edgings are also far less conspicuous. The 

 superciliaries are streaked with black in the present form, instead 

 of being pure antique brown, as in both leucopogon and leucotis, 

 and the throat is shaded with the same color, most heavily pos- 

 teriorly, the color gradually fading out in front, while in leucopogon 

 the transition is more abrupt. Compared further with leucotis, 

 males have the breast more richly colored, the buffy patch on 

 the chest and abdomen is deeper, antique brown in fact, and the 

 under parts in general are more buffy. Females, like males, are 

 not nearly so dark as females of leucopogon; they are more buffy 

 below than the same sex of leucotis, as well as paler above. 



With the series before me I have no difficulty whatever in 

 separating littoralis from decoratus by its uniformly paler, duller 



