508 
ACCIPITRES. 
Nauclerus riocouri, Strickl. P. Z. S. 1850, p. 215: Sharpe, 
Cat. B. i. p. 318. 
a £ Kordofan, 5 August (J. PethericJc) 1848. 
SUBFAMILY. — HERPETOTHEBIN M, 
Herpetotheres. 
Herpetotheres, Vieillot, N. Diet. d’Hist. N. xviii. p. 317 (1817) 
(cf. Strickl. Ann. & Mag. N. H. yi. p. 415). 
2480. Herpetotheres cachinnans. 
Falco cachinnans, Linn. Syst. Nat. i. p. 128. 
Herpetotheres cachinnans, Strickl. Orn. Syn. p. 75: Sharpe, 
Cat. B. i. p. 278. 
a Island of Mexiana, November (A. W.) 1848. 
One of Mr A. It. Wallace’s specimens. 
SUBFAMILY. — POLYBOBINiE. 
Ibycter. 
Ibycter, Vieillot, Anal. p. 22 (1816). 
2481. Ibycter americaims. 
Aigle d } Amerique, D’Aub. PI. Enl. 417, unde, 
Falco americanus , Bodd. Tabl. PI. Enl. p. 25. 
Ibycter americanus, Strickl. Orn. Syn. p. 22 : Sharpe, Cat. B. 
i. p. 35. 
a Guatemala (J. Constancia) 1851. 
Milvago. 
Milvago, Spix, Av. Bras. i. p. 12 (1824). 
2482. Milvago chimachima. 
Polyborus chimachima, Vieill. N. Diet. d’Hist. N. v. p. 259. 
Milvago chimachima, Strickl. Orn. Syn. p. 19. 
Ibycter chimachima, Sharpe, Cat. B. i. p. 39. 
a Brazil ( Bt at Birmingham) 1844. — b {Arthur Strickland). 
