IQZ CuERRiE 071 a Supposed Ne-v Myrmeciza. [April 



and breast slate-black, changing gradually posteriorly to slate-gray on the 

 abdomen; flanks and under tail-coverts Vandyke brown, the latter much 

 the brigliter; under wing-coverts brownish slate-gray; bend of wing 

 white. " ISare orbital skin, cobalt-blue ; iris, chestnut" ; bill black. The 

 feathers of the crown are somewhat elongated, but not in the form of a 

 crest. The wings are short and rounded; the first primaiy is the shortest; 

 the third is about equal to the eighth; the fointh, fifth and sixth are the 

 longest. 



t'einale (No. 1351, Museo Nacional, Pozo Azul, January, 1SS7, Josd 

 C. Zeledon). — Above : head slate-black with a shading of vandyke brown 

 commencing on the crown and deepening posteriorly to the cervix where 

 the blackish color entirely disappears, giving place to the rich vandyke 

 brcnvn of the back; wings, rump and upper tail-coverls a little brighter; 

 tail slightly darker. Below: auriculars slate color; chin and throat slate- 

 gray with a slight shading of chestnut from the jugulum; jugulum bright 

 chestnut, changing into hazel brown on the breast; sides of breast, sides, 

 flanks, and under tail-coverts vandyke brown, darkest on the sides of the 

 breast, and brightest on the under tail-coverts; under wing-coverts grayish 

 vandyke brown. "Bare orbital skin, cobalt blue; iris, chestnut." The 

 label of another female (No. 330S) reads : "Upper mandible black; lower, 

 blackish; feet and legs plumbeous; iris, brown." The remaining five 

 examples show considerable individual variation in color. All are a trifle 

 darker on the back, but present an unbroken series of variations. Below, 

 in Nos. 1350, 3308, and 4592, there is only a trace of hazel on the breast, 

 the vandyke brown of the sides taking its place. In Nos. 635 and 4590 the 

 hazel of the breast is replaced by chestnut from the jugulum. 



Specimens from the Atlantic side may be compared with those from 

 the Pacific side, and described, as follows : 



Male (No 3419. Museo Nacional, Jiminez, August 16, 1SS9, A. Alfaro) 

 similar to the male described as coming from the Pacific side, differing 

 principally in the relative proportions; however, the back seems a trifle 

 darker; also the head a shade blacker; but with only the single specimen 

 from the Pacific side it is impossible to say whether these diflerences are 

 constant or not. 



. Female (No. 3415, Museo Nacional, Jiminez, August S, 1SS9, A. Alfaro) 

 above, similar to the females from the Pacific side, but with the head and 

 back a trifle darker. Below, chin and throat a blackish slate; restof under- 

 parts dark vandyke brown, as dark as the sides of the breast of the Pacific 

 form. (Perhaps the color of the underparts would be better described as 

 dark sepia brown.) 



A young male (No. 3417, Museo Nacional, Jiminez, August 16, 1889, 

 A. Alfaro) resembles most the female. The head, however, is vandyke 

 brown like the back, only the bases of the feathers being blackish. The 

 wings are blackish, being edged only with the color of the back. Tail 

 blackish, indistinctly barred with narrow white bands, showing most from 

 below. Below, chin and throat slate-gray, heavily washed with the color 

 of the breast, which is somewhat lighter than in the adult bird. Under 

 tail-coverts barred with from two to three black bands. 



