106 



BULLETIN 5 0, UNITED STATES NATIONAL MUSEUM 



Adult female (31 specimens) ««: Wing 268-321 (289.4); tail 191-228 

 (202.8); culmen from the cere 28.0-37.0 (31.6), one 43.5; tarsus, 

 31.0-37.0 (33.8), one 28; middle toe, without claw, 28.0-34.0 (30.9 mm.). 



Range. — Resident in swamps and marshy areas throughout its 

 range from Guerrero and southern Sinaloa (Cacalotdn), Mexico, to 

 Guatemala, Nicaragua, El Salvador (Lake Olomega, Volcdn de 

 Santa Ana, Costa Rica, and Panama, south to Venezuela, the Guianas, 

 Colombia, western Ecuador, western, central, and southeastern Peru, 

 to Bohvia (Santa Cruz de la Sierra), northwestern Argentina 

 (Tucumdn), Paraguay (Fort Wheeler), and central and southeastern 

 Brazil (^Amazonia, Matto Grosso, and Sao Paulo) ; local and restricted 

 to the tropical zone throughout its range. 



Type locality. — "Vicinity of Rio to the north of Brazil and all of 

 Guiana"; restricted type locality, vicinity of Paramaribo, Surinam, 

 suggested correction Bahia, eastern Brazil (Hellmayr and Conover, 

 1949, 27). 



Falco uncinatus "Illiger" Temminck, Planches Col., livr. 18, 1822, pis. 103, 104, 

 115, and text ("Vicinity of Rio to the north of Brazil and all of Guiana."). — 

 Maximilian, Beitr. Naturg. Bras., i, 1830, 172 (Rio de Janeiro; Bahia). — 

 ScHUZ, Journ. fiir Orn., Ixxv, 1927, 99 (powder downs). 



Cymindis undnnatus Stephens, in Shaw's Gen. Zool., xiii, pt. 2, 1826, 22 (Brazil). 



Cymindis uncinatus Lesson, Man. d'Orn., i, 1828, 91; Traite d'Orn., 1831, 

 55. — Vigors, Zool. Journ., i, 1824, 337.— Kaup, Classif. Saugeth. und Vogel, 

 1844, 121.— Gray, Gen. Birds, i, 1845, 25, pi. 9, fig. 7; List Spec. Brit. Mus., 

 pt. 1, Accip., ed. 2, 1848, 48 (Pard) ; Hand-list, i, 1869, 28, No. 253— Bonaparte, 

 Consp. Gen. Av., i, 1850, 21. — Burmeister, Syst. Albers. Th. Bras., ii, 

 1856, 108. — ScLATER and Salvin, Proc. Zool. Soc. London, 1859, 219 (Guate- 

 mala) ; 1879, 541 (Medellfn, Colombia); Nom. Av. Neotr., 1873, 122.— 

 ScHLEGEL, Mus. Pays-Bas, ii. No. 8, livr. 2, 1863, 8 (monogr.) ; No. 36, livr. 

 10, 1873, 136; Revue Accip., 1873, 136.— L^otaud, Ois. Trinidad, 1866, 

 36. — Pelzeln, Orn. Bras., Abth. 1, 1868, 5. — Lawrence, Ann. Lye. Nat. 

 Hist. New York, ix, 1868, 134 (San Jos6, Costa Rica). — Frantzius, Journ. 

 fur Orn., 1869, 369 (Costa Rica). — Finsch, Proc Zool. Soc. London, 1870, 

 557 (Trinidad).— Pelzeln, Orn. Bras., Abth. 4, 1870, 398.— Sharpe, Proc. 

 Zool. Soc. London, 1873, 419, pi. 39, figs. 18-20 (changes of plumage).— 

 Koenigswald, Journ. fiir Orn., 1896, 386 (Sao Paulo, s. Brazil). 



'^^ Twenty-nine females: 



