BIRDS OF NORTH AND MIDDLE AMERICA. 737 



bb. Midfllo pair of rectrices narrow and elongated. 

 c. Middle pair of rectric'es lanceolate, pointed, not twice as long as the other rec- 

 trices; under parts dull lilack or dusky olivaceous-slaty. (Panama to Vene- 

 zuela and Trinidad.) Chiroprion lanceolata (p. 737) 



rr. Middle rectrices linear, obtuse, inuc-h uiori' than twic(^ as long as other rec- 

 trices; under parts deep black. (Southern Mexico to Costa Rica.) 



Chiroprion linearis (p. 739) 

 an. General color plain olive-green, paler on under parts (with or without crimson on 

 crown). (.Vdult females and young males.) 

 6. Middle pair of rectrices not longer than others, broad and rounded. 



c. Smaller (wing 69) . .Chiroprion pareola pareola, female and yoimg (extralimital) 

 cc. Larger (wing 75-76). 



Chiroprion pareola atlantica, female and young (extralimital) 

 66. Middle pair of rectrices i)rojecting l)eyoiid the others, narrowed terminally or 

 else very narrow for most of their length. 

 c. Middle pair of rectrices broad for most of length, gradually narrowed ter- 

 minally, projecting for much less than half their length beyond the rest. 



Chiroprion lanceolata, female and young male (pp. 737, 738) 

 cc. Middle pair of rectrices narrow and of nearly uniform width for most of their 

 length, usually projecting for nearly half their length beyond the rest. 



Chiroprion linearis, female and young male (pp, 739, 740j 



CHIROPRION LANCEOLATA (Wagler). 

 SHARP-TAILED MAN AKIN. 



Adult male. — Forehead, superciliary region and rest of sides of head, 

 hindneck, and under parts plain black, the under parts duller, with 

 more or less of an olive-slaty cast," at least posteriorly; a flattened 

 truncate or slighth^ emarginate crest of elongated, stiffened, rather 

 narrow, feathers covering crown and middle of forehead bright crim- 

 son; back and scapulars plain grapsh azure blue; rump and upper 

 tail-coverts dark olive-slat}^ or slaty olive; wings and tail imi- 

 form black; bill blackish brown or dusky horn color, the mandible 

 slightly more brownish; iris brown; legs and feet light brownish 

 yellow or buffy in dried skins, clear orange in life; length (skins), 

 \ 18-139 (129); wing, 70.5-75 (72.9); tail, 46.5-55.5 (51.5); exposed 

 culmen, 9-10.5 (10); tarsus, 17.19-5 (18.8); middle toe, 11.5-13.5 

 (12.3).'' 



Adult female. — Abo\;e plain olive-green (the crown sometimes with 

 red feathers, rarely -with a patch of that color) ; under parts lighter 

 olive-green, deepest on chest, paler and sometimes more grayish on 

 and throat, the under parts of body much paler, inclining to olive- 

 whitish on abdomen and under tail-coverts; bill horn color, the 

 mandible paler; iris and feet as in male; length (skins), 115-129 



a Especially in specimens from Venezuela to the lower Amazon Valley. 

 *> Twenty-five specimens. 



11422— VOL 4—07 17 



