22 
Mr. E. Blyth on the Birds of India. 
in Japan) alone slightly differing. Common throughout India, 
in all suitable localities*. 
Genus Pontoaetus, Kaup. 
70. P. ichthyaetus. (Horsfield, Zool. Res. in Java, pi. 34.) 
Syn. Falco ichthyaetus , Horsfield. Haliaetus plumbeus, Hodg¬ 
son. Ichthyaetus bicolor, G. R. Gray. I. horsfieldi et I. hucarius, 
Hodgson. Pandion lineatus , Jerdon, Cat. p. 8. 
Hab. India; Indo-Chinese and Malayan countries. 
71. P. humilis. (Temm. & Muller, Ois. t. 6.) 
Syn. Falco (Pandion) humilis, Muller,Verh.p.48. Ichthyaetus 
nanus, Blyth, J. A. S. xi. p. 202, et xii. p. 304. 
Hab. Malayan peninsula ; Sumatra. 
Genus Blagrus, Blyth. 
72. B. leucogaster. (PI. Col. 49; Gould's B. Austr. i. pi. 3.) 
Syn. Falco leucogaster, Gmelin. F. dimidiatus, Raffles. F. 
albicilla, var., Latham. F. blagrus of S.E. Asia and Australia, 
auctorumf. Ichthyaetus cultrunguis, Blyth (the senior adult). 
Haliastur sphenurus, Gould (the young). Kumpa-maur Eagle (the 
senior adult) and Maritime Eagle (the adult), Latham. 
Hab. India; Malasia; Moluccas; New Guinea; Australia; 
the Andaman and Nicobar Islands: chiefly the sea-coast and 
estuaries of the great rivers. 
Genus Haliaetus, Savigny ( Cuncuma, in part, Hodgson). 
73. H. fulviventer, Vieillot. (PI. Col. 8; Hardwicke's Ill. 
Ind. Zool. pi. 19, the young.) 
Syn. Aquila leucorypha, Pallas J (?). Falco macei, Temminck. 
* The Osprey is a very peculiar form among the Falconidce, and wants 
the projecting superorbital bone which is (I believe) so characteristic of 
all the rest. The next genus approximates Pandion in the adaptation of 
structure to piscivorous habits, but is nevertheless very distinct, and much 
more nearly affine to Haliaetus. 
4 The true Blagre of Levaillant ( Falco blagrus, Daudin) is now believed to 
be the young of Haliaetus vocifer ( vide Cassin, Proc. Philad. Acad. 1859, 
p. 31). 
J This name would hold precedence. Mr. Newton, on comparing the 
