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GENERA AND SUBGENERA 
Subfam. Y. Milvin^e, Pr. P. (G. of B. p. 23). 
, Machaerhamphus, Westerm. 1851. Macheiramphus, 
£c&Z. (M. alcinus, Westerm.) 
Baza, Hodgs. 1836. Lophotes, Less. 1831, nec Giorna , 
1803. Lepidogenys, Gr. 1839. Hyptiopus, Hodgs . 
1841. Lophastur, Bl. 1842. (Falco lophotes, Temm.) 
Aviceda, 1837- Avipida? G. P. Gr. 1841. Ichthi- 
erax, Pr. P. 1849, nec Kaup. (Aviceda cucnloides, Sw.) ^ 
Pernis, Cuv. 1817- Buteo, Boie, 1826? (Falco aptvorus, 
Linn.) 
Leptodon, Sundev. 1836. Cymindis, Cuv. 181 7, nec 
Latr. 1806. Odontriorchis, Kaup, 1844. (Falco caya- 
nensis, Gm.) 
Regerhinus, Kaup, 1845. Cymindis, Sw. 1837. $F*Jco> 
nncinatus, III.) 
Milvus, Cuv. 1799-1800. (Falco milvns, Linn.) 
Hydroictinia, Kaup, 1844. Milvus, p. Kaup, 1851, 
(Falco ater, Gm.) 
Lophoictinia, Kaup, 1847. (Milvus isurus, Gould.) 
Elanus, Sav. 1809. Milans, Boie, 1822. Elanoides, 
Vieill. 1818. (Falco melanopterus. Laud.) 
Gampsonyx, Vig. 1825. (Gampsonyx Swainsoni, Vig.) 
Chelictinia, Less. 1843. Chelidopteryx, 1844% et 
Cypselopteryx, 1851, Kaup. Milvus, Boie, 1826. (Ela- 
noides Riocouri, Vieill.) 
Nauclerus, Vig. 1825. Milvus, Vieill. 1807* nec Cuv. 
1799-1800. Elanoides, G. R. Gr. 1848. (Falco furca- 
tus, Linn.) 
Ictinia, Vieill. 1816. (Falco mississippensis, Wils.) '*■. 
Nertus, Boie , 1826. Poecilopteryx, Kaup, 1844. Pae- 
cilopteryx, Pr. B. 1849. (Falco plumbea, Gm.) 
Rostrhamus, Less. 1831. Cymindis, Boie, 1826, nee 
Cuv. 1817- (Falco hamatus. III.) 
Subfam. VI. Accipitrin^e, Sw. (G. of B. p. 27). 
Astur, Lacep. 1800, 1801. Dsedalion, Sav. 1809. Spar- 
vius, Vieill. 1816. Aster, Sw. 1837. Dsedalion, G. R. Gr. 
1849. Daedalium, Agass. (Falco palumbarius, Linn.) ' 
Leucospiza, 1844, et Leucospizia, 1851, Kaup. (Falco 
novse bollandiae, Gm.) 
a Nec Chelidoptera, 6rOw&7%1836. 
