BIHDS OF NOBTH AND MIDDLE AMERICA. 135 



Adult male.— Length (skins), 740-785 (762); wing, 393-416 (404.5); 



culmen, 68-75 (71.5); tarsus, 33.5-34.5 (34); outer anterior toe 49.° 



Adult female.— Length (skins), 770-832 (794); wing, 380-412 



(392.4) ; tail, 393-490 (451.2) ; culmen, 71-72.5 (72.1) ; tarsus, 31.5-37 



(35.1); outer anterior toe, 44.5-50 (47.4). b 



Southeastern Nicaragua (Rio Escondido; Los Sabalos, San Emilio), 

 eastern Costa Rica (Cariblanco de Sarapiqui; Carrillo; Volcan de 

 Barba; San Carlos; El Zarcero; Guapiles; Guayabo; Bonilla; Tala- 

 manca), Panama (Calovevora, Veragua; Lion Hill, Canal Zone), 

 Colombia (Rio Nercua; Antioquia), and eastern Ecuad6r (Guayaquil; 

 Balzar Mis.). 



Ps[ittacus]ambiguusBvcK&Tvm , KurzeUeb.,iv. Th. 1, 1811, 65 ("South America; " 



baaed on Le Grand Ara Militaire Levaillant, Hiat. Nat. Perr., i, 15, pi. 6). 

 Psittacus ambiguus Kuhl, Consp. Paitt., 1820, 17.— Hahn, Om. Atlaa, Papag., 



1834, 25, pi. 9. 

 Macrocercus ambiguus Stephens, Shaw'a Gen. Zool., xiv, 1826, 113. 

 Ara militaris a. ambiguus Cabanis, Journ. fiir Orn., 1862, 335 (Coata Rica). 

 Marcrocercus (Aracanga) ambiguus Bonaparte, Rev. et Mag. de Zool., 1854, 149.— 



Souance, Rev. et Mag. de Zool. r 1856, 57. 

 Araambigua Salvadoei, Cat. Birda Brit. Mua., xx, 1891, 160 (Calovevora, Vera- 

 gua, Panama; Balzar Mta. and Guayaquil, w. Ecuador). — Salvin and God- 

 man, Biol. Centr.-Am., Avea, ii, 1897, 568 (Rio Eacondido, Los Sabalos, and 

 San Emilia, Nicaragua; Barba, San Carlos, Zarcero, and Talamanca, Costa Rica; 

 Calovevora and Lion Hill, Panama; Rio Nercua, Colombia; w. Ecuador). — 

 Ridgway, Condor, vii, 1905, 155, in text (Bonilla, e. Costa Rica). — Careiker, 

 Ann. Carnegie Mua., vi, 1910, 482 (Cariblanco de Sarapiqui, Carrillo, and 

 Guapiles, Costa Rica; babita; deacr. egga). 

 [Ara] ambigua Sharpe, Hand-list, ii, 1900, 13. — Forbes and Robinson, Bull. 



Liverpool Mus., i, 1897, 10. 

 Sittace ambigua Finsch, Die Papag., ii, 1868, 943. 



Macrocercus militaris (not Psittacus militaris Linnaeua) Selbt, Nat. Libr., Parrots, 

 1836, 86, part, pi. 5.— Burmeister, Syst. Ueb. Th. Bras., ii, 1856, 163, foot- 

 note, part. 

 S[ittace] militaris Wagler, Mon. Paitt., 1832, 668, 733, part. 

 Sittace militaris Finsch, Die Papag., i, 1867, 396, part. — Lawrence, Ann. Lye. 

 N. Y., ix, 1868, 131 (Volcan de Barba, Coata Rica). — Frantzius, Journ. fur 

 Orn., 1869, 364 (Costa Rica). 

 Ara militaris Gray, List Birds Brit. Mus., Psittacidse, 1859, 28, part (specimen 

 d).— Cassin, Proc. Ac. Nat. Sci. Phila., xii, 1860, 137 (Rio Nercua, n. w. 

 Colombia).— Lawrence, Ann. Lye. N. Y., vii, 1862, 299 (Lion Hill, Pan- 

 ama). — Salvin, Proc. Zool. Soc. Lond., 1870, 213 (Calovevora, Panama); 

 Ibis, 1871, 87, 88, part (Middle American range). — Boucard, Proc. U. S. Nat, 

 Mus., 1878, 46 (San Carlos and Zarcero, Costa Rica). — Sclater and Salvin. 

 Proc. Zool. Soc. Lond., 1879, 538 (Antioquia, Colombia). — Zeledon, Cat. 

 Avea de Coata Rica, 1882, 24; Proc. TJ. S. Nat. Mus., viii, 1885, 111 (Costa 

 Rica); Anal. Mus. Nac. Costa Rica,"i, 1887, 124 (Costa Rica). — Nutting, 

 Proc. U. S. Nat. Mus., vi, 1883, 407 (Los Sabalos, e. Nicaragua). — Richmond, 

 Proc. U. S. Nat. Mus., xvi, 1893, 519 (Rio Escondido, e. Nicaragua). 

 Arara militaris Schlegel, Mus. Pays-Bas, iii, no. 26 (Psittaci), 1864, 5, part 



(Ecuador). 

 Arara buffoni Brehm, Mon. .Papag., 1842, 6, pi. 8 (South America; based on Le 

 grand Ara militaire Levaillant, Hist. Nat. Perr., i, 15, pi. 6). 



° Two specimens. & Five specimens. 



