SYSTEMATICALLY ARRANGED BY DR. 1. T. KAUP. 
1. P. ichthyaétus, PF. ichthyaétus, Horsf.; Haliaétus plumbeus, 
Hodgs.; Ichthyaétus bicolor, G. Gray. — Head and bill 95; tarsus 
80; tail 243 mm. long. 
2. P. humilis, Mull. Zool. t. 6. — Head and bill 82; tarsus 68; 
tail 192 mm. long, 
6. Subgenus Pandion, Sav.—Tarsus and toes with pointed scales ; 
wings very long. 
3. P. gouldii, Kp.; P. leucocephalus, Gould, Birds of Austr, 
xiii. 1.— Two to three transverse scales before the claws; only the 
inner webs of the superior part of the tail-feathers, with six toothed 
white bands, do not extend to the shaft. Australia. 
4. P. haliaétus, Cuv.; F. haliaétus, Say., Naum. t. 16; P. fluvia- 
tilis, Sav. — Four transverse scales before the claws; tail with six 
black bars, extending over both the webs. Europe, Africa, Asia. 
V. Geyvus HALIAETUS, Sav. 
The non-feathered part of the tarsus, and the long toes, with trans- 
verse regular scales. The Buteonine or Vulturine type. 
a. Subgenus Haliaétus, Kp.— Larger than Ag. fulva; tarsus 
feathered to the middle; bill of medium height ; tail not remark- 
ably long. The Falconine type. 
1, H, leucocephalus, Sav.; F'. leucocephalus, Linn., Wils. iy. 36, 
vii. 55, 2.— Adult with a pure white head, neck, and tail. N. 
America. 
2. H. albicilla, Pall; H. nisus, Sav.; F. albicilla et ossifraga, 
L., Naum. t. 12-14,— Adult with clear brownish head and a white 
tail. Europe, Asia, Africa. 
b. Subgenus Ictinodetus, Kp.— Large like a Méiluus j tarsus a 
third part feathered. The Miluine type. 
5. H. ponticerianus, Cuy.; F. ponticerianus, Gmel.; pl. enl. 416; 
H. girrenera, Vieill.; H. garuda, Less.; F. indus, Bodd. — Tail 
shorter than the body; adult with black shafts on the white plu- 
mage. India. 
3, H. leucosternus, Gould, Birds of Austr.—The white plumage 
with white shafts. Australia, 
4. H. canorus, Vig. and Horsf. Linn. Tr, xiii. 186; Miélvus 
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