Z\JO Todd, The Genus Eupsychortyx. [April 



Measurements. — Male (twelve specimens): wing, 94-104 (average, 99); 

 tail, 56-67 (60); bill, 11-13.5 (12.6); tarsus, 24-31 (28). Female (ten 

 specimens): wing, 93-107 (99); tail, 57-65 (61); bill, 12-13 (12.7); tarsus, 

 24-30 (27.5). 



Range. — Andean region of Colombia, from Antioquia and Santander 

 south at least to the headwaters of the Rio Patio. 



Remarks.- — This form was described by Gould in 1843 as a 

 distinct species, and figured a few years later. Naturally he 

 considered it very distinct from E. leucopogon as he understood 

 that species, and compared it only with E. cristatus. There can 

 be no question, however, that leucopogon (as described in the 

 present paper) and leucotis are conspecific, the differences between 

 them being only of racial value. Indeed, specimens from western 

 Colombia (Caldas and El Eden) in their paler throats, with the 

 white of the chin more extended, whiter crests, and browner 

 upper parts suggest an approach to leucopogon, and further mate- 

 rial from this region would be most desirable. Although Salvin, 

 misled by Gould's plate of E. leucopogon, referred his Veraguan 

 specimens to E. leucotis, and Mr. Ogilvie-Grant, while remarking 

 the difference between these and specimens from Antioquia, 

 nevertheless lists both series under the earlier name, the two are 

 sufficiently distinct from the standpoint of a trinomialist. The 

 Colombian bird agrees with leucopogon in the color of the super- 

 ciliary and malar stripes, which are amber brown, with practically 

 no black in the former and very little in the latter, but the general 

 coloration is paler, and the white of the head is more restricted. 

 The flank-streaks in leucotis are apt to be black, with more or less 

 russet centers, instead of rich hazel, with black mottling. Indi- 

 vidual variation is considerable, however, affecting the color of 

 the forehead and chin (which in some specimens is decidedly 

 grayish) and the spotting of the under parts. I have examined 

 at least two males (Nos. 112,275, Collection American Museum 

 of Natural History, Chicoral, Colombia, and 59,602, Collection 

 Carnegie Museum, Pena Blanca, Colombia) in which the breast 

 has little or no russet color; being merely spotted black and white. 

 The Pena Blanca bird has also a very pale throat, more like that 

 of littoralis, and may indicate intergradation in the direction of 

 cristatus, but as it is in the moult, and may be a young bird, I 



