1920 ] Todd, The Genus Eupsychortyx. 205 



Measurements. — Adult male (two specimens): wing, 95-101; tail, 

 55-57; bill, 13; tarsus, 28.5-30. Female (two specimens): wing, 97-102 

 tail, 50-58; bill, 12.5-13; tarsus, 28-31. 



Range. — Western Panama. 



Remarks. — Little appears to be known of this form, which is 

 moreover involved in serious complications. It was described in 

 1842 by Lesson from "San Carlos, America? centralis Oceani 

 Pacifici." In the same paper he describes two other species, 

 Crypticus apiaster and Pitylus lazulus, from the same place, as 

 well as several additional new forms from Realejo, Nicaragua, 

 and Acapulco, Mexico, all collected by his brother, Adolphe 

 Lesson. Now, the type-locality of Pitylus lazulus stands in the 

 American Ornithologists' L^nion " Check-List of North American 

 Birds," ed. 3, 1910, 285, as San Carlos, Salvador, while in the 

 case of Crypticus apiaster Mr. Ridgway (Bulletin U. S. National 

 Museum, No. 50, VI, 1914, 481, note) reaches provisionally the 

 same conclusion. It follows, therefore, either that Lesson's type 

 did not actually come from San Carlos, or that this particular 

 form ranges much farther north than has heretofore been sup- 

 posed, overlapping the range of "Eupsychortyx" leylandi. Judg- 

 ing by analogy, the latter supposition seems most unlikely. Les- 

 son's description, brief as it is, seems perfectly applicable to the 

 bird from Panama which we have described above, since he ex- 

 pressly says "fronte gulaque albidis, * * * collari antici, 

 rufo." Turning now to Des Murs' work for further light on the 

 matter, we find a discrepancy between the two descriptions, all 

 the more remarkable because Des Murs states that "our figure is 

 taken from an individual sent by the Honorable M. Lesson to 

 the Museum of Natural History of Paris, in the galleries of which 

 it figures today" (translation). Here the bird is figured and 

 described as having the forehead and the throat white, but no 

 mention is made of any rufous collar on the lower throat. On 

 the other hand, "a white eyebrow starts from the outer angle of 

 the eye, separated from the white of the throat by the brownish 

 red which colors the cheeks" (translation). This part of the 

 description is of course entirely inapplicable to our bird, but on 

 referring to Gould we find that he too figures a precisely similar 

 specimen. So conspicuous is this discrepancy that Mr. Ogilvie- 



