Vol. XXXVI I 

 1920 



Todd, The Genus Eupsychortyx. ZW 



considerable black on the malar region also. Its relationships to 

 littoralis will be discussed under the head of that form. 



Females of this form resemble those of leucopogon very closely, 

 having prominently marked under parts and heavily streaked 

 throats; the upper parts, however, are not so decidedly brownish 

 or so much mottled, especially anteriorly. Three young birds 

 from Calamar (January 2 and 22) are like the adult female, but 

 the spotting below is less distinct, and the flanks are marked with 

 broad shaft-streaks of black centered with sayal brown; the crown 

 and crest are brown like the rest of the upper parts. 



Since this form has been described several other specimens 

 have turned up in the collections of various institutions, all of 

 which are duly listed herewith. As said by Dr. Chapman, it is 

 evidently restricted to the Caribbean Fauna, and is doubtless 

 strictly littoral in its distribution. Considerably to my surprise 

 I find that a specimen from Fundacion, on the southern confines 

 of the Santa Marta region, belongs here rather than to littoralis, 

 but otherwise all the specimens with authentic data come from 

 the region of the lower Magdalena and Sinu Rivers. There are 

 a pair of birds, perfectly typical of this form, in the collection of 

 the Museum of Comparative Zoology which are said to have 

 come from the line of the Panama Railway, but the assigned 

 locality is almost certainly a mistake. Indeed, the Biological 

 Survey party failed to secure a single specimen of Eupsychortyx 

 in their exhaustive work in this region, and the chances are that 

 if any form of the group occurs it would be leucopogon. 



Specimens examined. — Colombia: Fundacion, 1; Calamar, 8; 

 Turbaco, 1; Savanilla, 1; Punto Zapote, 1; unspecified, 3. "Line 

 of Panama Railway" (?), 2. "Orinoco" (?), 1. Total, 18. 



Eupsychortyx leucopogon littoralis Todd. 



Plate V, figure 7. 



Eupsychortyx leucopogon (not Ortyx leucopogon Lesson) Allen, Bull. Am. 



Mus. Nat. Hist., XIII, 1900, 127 (Bonda, Colombia). 

 Eupsychortyx cristatus littoralis Todd, Prot\ Biol. Soc. Washington, XXX, 



1917, 6 (Mamatoco, Colombia; orig. descr.; type in coll. Carnegie 



Mus.). 



