614 BIRDS FROM COSTA RICA RIDGWAY. 



a conspicuous lateral extension, oxer the cai-coveits, (|uite as far as the 

 end of the latter; the anterior part of the forehead and lores are i)aler, 

 slightly brownish, gray instead of dark shite-color; the general color of 

 the upper parts is devoid of any brownish tinge, being a pure slate- 

 black or blackish slate, and the wings are without any trace of brown- 

 ish markings; the side of the head, together with the chin and throat, 

 are paler gray. Possibly the type may be a younger bird, and the 

 other specimen (Xo. 0410, Museo Kacional de Costa Hica) may also be 

 an immature male, or perhaps an adult female. 



Young ff) female (No. 5952, Museo Nacional de Costa Rica, Volcan 

 de Irazu, July 2, 1S91): Above nearly uniform dusky brown (nearest 

 "clove brown"), inclining to bistre posteriorly, where showing rather 

 indistinct dusky central spots (a single subterminal one on each feather 

 of hinder scapulars, lower back, and rump), the upper tail-coverts rus- 

 set, with dusky bais; outer surface of remiges vandyke brown ; sides 

 of head a little paler than pileum, the ear-coverts nearly uniform dull 

 slate-color; chin, throat, and chest mixed pale gray and pale Isabella 

 color, the latter on tips of feathers, and the prevailing color super- 

 ticially; rest of under parts cinnamon-buff, deeper and brighter pos- 

 teriorly, paler and grayer anteriorly, each feather marked with a partly 

 exposed subterminal f| -shaped mark of dusky; Hanks, anal region, and 

 under tail-coverts clear mummy-brown, rather broadly barred with dusky. 

 Bill brownish black; legs and feet as in adult. Length (skin), 4.40; wing, 

 2.03; tail, 1.02; exposed culmen, 0.35; tarsus, 0.78; middle toe, 0.68. 



10. Antrostomus saturatus Salviii. (.1. rnfo-maculatnH Ridgw. I'roc. U. S. Xat. 

 Mas., XIV, 1891, 166.) 



In redescribing this species as A. ru/o-maculatus, I was not at the time 

 aware of Mr. Salviu's previous name and description, my memoranda 

 or references thereto having been somehow lost or mislaid. Since my 

 attention has been called to the matter, I find there can be no question 

 that I have thus, by accident, added a synonym to the nomenclature 

 of this species. 



Another adult male, from the same locality as the type, collected by 

 Mr. Geo. K. Cherrie, July 24, 1891, has been received for examination. 

 This exami)le (No. 5893, IMuseo Nacional de Costa Rica) is almost 

 exactly like the type, but differs in a few minor particulars, as follows: 

 Along the sides of the 0(!cii)ut and across its posterior portion, some of 

 the feathers have one or both webs mainly whitish, with black bars, 

 producing a much interrupted series of irregular small whitish blotches; 

 there is considerable light-colored (pale rusty buff) mottling on the 

 scapulars and tertials, rendering the large black spots or blotches more 

 conspicuous; the pale rusty-brown oblique bands on the middle tail- 

 feathers are more interrupted, being much broken by irregular black 

 markings, and there is even less light s])otting on the throat, where th3 

 general color is an almost unbroken dusky black. Its measurements 

 are as follows: Length (skin), 8.05; wing, C.30; tail, 4.85; its gradua- 

 tion, 0.70; tarsus, 0.05; middle toe, O.GO. 



