736 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



pidean, but edges of acrotarsium rather widely separated on inner 

 side of tarsus, especiall}^ the upper portion; heel joint denuded, 

 except front of tibial portion; middle toe, with claw, decidedly shorter 

 than tarsus, its second phalanx wholly adherent to outer toe, is 

 first phalanx united to inner toe; outer toe (without claw) reaching 

 nearly to base of terminal phalanx of middle toe, the inner much 

 shorter; hallux (without claw) about as long as inner toe, or slightly 

 shorter, but much stouter. 



Plumage and coloration. — Contour plumage perfectly blended ; adult 

 males with feathers of frontal region elongated, dense, erect, and some- 

 what stiffened, without bristly points, the crown with a truncated or 

 emarginate crest of long, stiff feathers of glossy ruby red color, the rest 

 of the plumage black, with back and scapulars pale blue; adult females 

 plain olive-green , paler below. 



Nidijication. — Nest similar to that of species of the genus Manacus. 

 Eggs cream color or creamy white, speckled with brown. 



Range. — Southern Mexico to Brazil, Bolivia, and Ecuador. (Six 

 species and subspecies, two species occurring north of the Isthmus cf 

 Panama.) 



KEY TO THE SPECIES OF CHIROPRION. 



a. General color black, with ))ack blue and (Town crimson or yellow. (Adult males.) 

 b. Middle pair of rectrices neither narrow nor elongated, 

 c. Crown-patch crimson. ( Chiro prion pareola, adult male.) 



d. Smaller (wing (59-77, tail 32. .5-38. 5, tarsus 19-21). (Guiana and Amazon 



Valley.) Chiroprion pareola pareola (extralimital)« 



(id. Larger (wing 77-79, tail 39-40, tarsut; 21-21.5. ( Island of Tobago. ) 



Chiroprion pareola atlantica (extralimital)'' 

 cc. Crown-patch yellow. (Upper Amazon Valley. j 



Chiroprion reginae (extralimital) c 



[Pipro] pareola Linnteus, Syst. Nat., ed. 12, i, 1776, 339 (Brazil; Cayenne; based on 

 Manacus cristatus nujer Brisson, Orn., iv, 459, pi. 35, fig. 1, etc. — Pipra pareola Swain- 

 son, Birds Brazd. pt. iv, 1836 (?), pi. 44. — Chiroxiphia pareola Cabanis, in Wiegmann's 

 Archiv. fur Naturg., 1847, i, 235; Sclater, Cat. Birds Brit. Mus., xiv, 1888, 307.— 

 [Chiroprion] pareola Bonaparte, Consp. Vol. Anisod., 1854, 5. — Manacus superbus 

 Pallas, Spic. Zool., i, fasc. 6, 1769, 8, pi. 3, fig. 1 (Surinam; coll. Mus. Geversianum). — 

 [Pipra]superba Gmelin, Syst. Nat., i, 1788, 999. 



bChiroxiphia pareola atlantica Dalmas, Mem. Soc. Zool. France, xiii, 1900, 139 (To- 

 bago). 



1 am unacquainted with Chiroxiphia pareola boHviana Allen, Bull. Am. Mus. N. H., 

 ii, Mar., 1889, 87 (Yungas, Bolivia; coll. Am. Mas. N. H.). 



c Chiroxiphia reginse Sclater, Ann. and Mag. N. H., ser. 2, xxvii, 1856, 469 (Borba, 

 Brazil; coll. Vienna Mus.); Cat. Am. Birds, 1862, 251, pi. 20; Cat. Birds Brit. Mus., 

 xiv, 1888, 308. — [Chiroxiphia] regina Sclater and Salvin, Nom. A v. Neotr., 1873, 55; 

 Sharpe, Hand-list, iii, 1901, 157. 



I have not seen this supposed species. If, as would appear from descriptions, the 

 only difference from C. pareola consists in its yellow instead cf crimson crown-patch, 

 it is possibly only a color-variety of that species. 



