94 Field Museum of Natural History— Zoology, Vol. XIII. 



*Pionus fuscus {Mull.). Dusky Parrot. 



Psittacus fuscus Muller, Syst. Nat. Suppl., 1776, p. 78 (Cayenne). 



Pionias violaceus Reichenow, Vogelbild, 1878-83, pi. XXVI, Fig. 3. 



Pionus fuscus Salvadori, Cat. Bds. Brit. Mus., XX, 1891, p. 334; Goeldi, Alb. 

 de Aves Amazon, 1902, pt. 2, pi. 15, Fig. 8; Ridgway, Bull. U. S. Nat. Mus., 

 No. 50, VII, 1916, p. 209, in key; Chubb, Bds. Brit. Guiana, I, 1916, p. 330. 



Range: Guianas and northern and northeastern Brazil. 



4: Dutch Guiana i; and British Guiana 3. 



Genus DEROPTYUS Wagler. 



Deroptyus Wagler, Mon. Psitt., 1832, p. 492 (Type Psittacus accipitrinus Linn.). 



*Deroptyus accipitrinus accipitrinus {Linn). Hawk-headed Parrot. 



Psittacus accipitrinus Linnaeus, Syst. Nat., I, ed. 12, 1766, p. 148 ("Habitat in 

 India " = Cayenne, substituted by Hellmayr, Nov. Zool., 1905, p. 303); SPix, 

 Aves Brazil, I, 1824, p. 44, pi. XXXIIa; BouRj., Perr., 1837-38, pi. 62. 



Deroptyus accipitrinus Salvadori, Cat. Bds. Brit. Mus., XX, 1891, p. 335; 

 Goeldi, Alb. de Aves Amazon, pt. 2, 1902, pi. 15, Fig. i; Brabourne and 

 Chubb, Bds. S. A., I, 1912, p. 92, No. 869; Snethlage, Bol. Mus. Goeldi, 

 VIII, 1914, p. 164. 



Range: Guiana and north Brazil. 

 I : British Guiana. 



Deroptjrus accipitrinus fuscifrons^ Hellmayr. Brazilian Hawk- 

 headed Parrot. 



Deroptyus accipitrinus fuscifrons Hellmayr, Nov. Zool., XII, 1905, p. 303 (Para) ; 

 Snethlage, Bol. Mus. Goeldi, VIII, 1914, p. 165. 



Range: Northeastern Brazil. 



Genus TRICLARIA Wagler. 



Triclaria Wagler, Mon. Psitt., 1832, p. 489 (Type Psittacus cyanogaster Vieill.), 



*Triclaria cyanogaster {Vieill.). Blue-bellied Parrot. 



Psittacus cyanogaster Vieillot, Nouv. Diet. d'Hist. Nat., XXV, 181 7, p. 328 

 (Rio de Janeiro); Bourj., Perr., 1837-38, pi. 57. 



Psittacus molachitaceus Spix, Av. Bras., I, 1824, p. 40, pi. XXVIII (immature). 



Triclaria cyanogaster Reichenow, Vogelbild, 1878-83, pi. XXVI, Fig. 8; Salva- 

 dori, Cat. Bds. Brit. Mus., XX, 1891, p. 337. 



Range: Southeast Brazil. 



2: Brazil (Victorio, Sao Paulo). 



"Deroptyus accipitrinus fuscifrons Hellmayr: Like D. a. accipitrinus (Linn.), 

 but differs in lacking the coppery or rosy red patches on the base of the outer tail 

 feathers and in having the whole forehead and crown uniformly dusky or only slightly 

 mottled with brownish white. The ground color of the sides of the head is darker 

 brown. 



