340 
ON THE CLASSIFICATION OF BIRDS. 
Cypselus. {fig. 292. a) Tarsus thickly feathered. AU 
the four toes directed forwards ; the two middle equal. 
The hallux, or inner toe, shorter than the exterior. 
Tail forked or even. 
C. apus. Selby, pi. 42. f. 4. 
Macropteryoc, Sw. {fig. 292. c) Tarsus remarkably short, 
naked. Anterior toes long ; the outer scarcely shorter 
than the middle ; the inner shortest ; hinder toe very 
short. Tail long, forked. India. 
M. longipentiis. Zool. III. ii. mystaceiis. Less. V. C.pl. 42. 
pi, 47. comatus. PI.Col.268. 
Cheetura, Stevens. {fig.^gQ.b) Feet as in the last, but the 
tarsus longer than the middle 
toe. Tail short, even; the shafts 
prolonged into acute points. 
C. inacroptera. Zool. 111. ii. pi. 42. 
Hirundo, Linn. Bill flattened 
its whole length ; the margins 
not inflected. Rictus smooth. 
Feet insessorial. Lateral toes 
equal; middle toe longer than 
the tarsus, {fig. 293.) 
II. ruslica. Selby, pi. 42. f. 1. 
Order RASORES. Rasorial Birds. 
Family PAVONIDA?. Peacocks and Pheasants. 
Tail very much developed. Tarsus of the males gene 
rally armed with spurs. Hinder toe elevated. 
