SYSTEMATICALLY ARRANGED BY DR. T. T. KAUP. 
15. Buteo vulgaris, Bechst.; F. buteo, Linn, Naum. 32, 33; 
F. communis, versicolor, albidus, Gmel.; Buteo mutans et facia- 
tus, Vieill.; F. tachardus, Daud., Vaill. 19.—The quills brownish, 
with indistinct blackish bars; tail with 12 bands; tarsus 71-77. 
middle toe 35-37; wings 360-400; tail 210-220 mm. long. 
Europe, Africa, Asia. 
16. Buteo plumipes; G. Gray ; Circus plumipes, Hodgs.—Soot- 
black ; tarsus 44 mm. long, feathered. Asia. 
li. Genus PERNIS, Kavp. 
The nostrils form a small fissure, tarsus short, with small scales. 
The Milvine type. 
a. Subgenus Baza sive Hyptiopus, Hodgs.; Aviceda, Swains. : 
Lophotes, Less,—Two fine teeth on the upper mandibley and two 
or three emarginations on the under mandible ; occiput crested. The 
Falconine type. 
1. Pernis lophotes, Kp.; F. lophotes, Cuy. ; pl. col. 10.—Wings 
and tail without bars; the smallest species. Asia. 
2. Pernis subcristatus, Kp.; Lepidogenys subcristatus, Gould, 
Proc. 1837, Birds of Austr.; /. reinwardtii, Temm. Verh. tab. 
1-5, fig. 2 mas,, fig. 1 fem.—Above ash-gray; crest on the supe- 
rior middle white; lower breast, belly and flanks, banded ; inner 
wing-covers rufous yellowish, Australia and Indian Archipelago. 
3. Pernis crassirostris, Kp.; Baza magnirostris, G. Gray.— 
Above black-brown ; crest black on the tip, bordered with white ; 
beneath barred. Philippine Islands. 
4. Pernis cuculoides, Kp.; Aviceda cuculoides, Swains. W. 
Afr Birds, t. 1— Above ash-gray ; crest on the superior part white ; 
chin, upper-breast, ash-gray; belly and flanks banded; the upper 
mandible 13 mm, high, allied to P. subcristatus. Senegal and Port 
Natal. Brit. Mus. 
b. Subgenus the Ailvine type is not discovered. 
c. Subgenus Regerhinus, Kp.—The large bill very compressed, 
much higher than broad; the nostrils yery short; lorum and eye- 
region naked. The Accipitrine type. 
5. Pernis uncinatus, Kp.; F. uncinatus, Ill. ; pl. col. 104-115 ; 
Cymindis uncinatus, Cuy.—Beneath barred. Cayenne. 
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