498 
ACCIPITRES. 
Micrastur concentricus , Strickl, Orn. Syn. p. 128 (ex Lesson). 
a Trinidad (Argent) 1851, 
Geranospizias. 
Ischnosceles , Strickland, Ann. & Mag. N. H. xiii. p, 409 (1844, 
nec Burmeister). 
Geranospiza (rectius Geranospizias, Sundev.), Kanp, Isis, 
1847, p. 183. 
2435. Geranospizias caerulescens. 
Sparvius ccerulescens , Vieill. N. Diet. d’Hist. N. x. p. 318. 
Geranospizias ccerulescens, Sharpe, Cat. B. i. p. 81. 
Ischnosceles gracilis, Strickl. Ann. & Mag. N. H. xiii. p„ 409; 
Orn. Syn. p. 124 (ex Temm.) 
a (Arthur Strickland). 
A species of wide range in South America. 
POLYBOROIDES. 
Polyhoroides, Smith, S. Afr. Quart. Joum. i. p. 106 (1830). 
2436. Polyhoroides typicus. 
Polyhoroides typicus, Smith, S. Afr. Quart. Journ. i. p. 107: 
Sharpe, Cat. B. i. p. 48. 
Polyhoroides radiatus, Strickl. P. Z. S. 1850, p, 216; Orn, 
Syn. p. 143 (partim, nec Scopoli). 
a f Kordofan, 15 July (J. Petherick ) 1848. 
Melierax. 
Melierax, Gray, List Gen. B. p. 5 (1840). 
2437. Melierax canorns. 
Falco canorus, Rislach, in Thunb. Diss. Ac. in. p. 264. 
Melierax canorus, Strickl. P. Z. S. 1850, p. 215: Sharpe, 
Cat. B. i. p. 87. 
Melierax musicus, Strickl. Orn. Syn. p. 142 (nec Daudin). 
a £ (Arthur Strickland ). 
A South -African species. 
