1C8 
AVES. 
hind the base of the bill, covered by a membrane ; legs robust, 
short; lateral toes equal; the external one united to the second 
joint; first three quills graduated, the fourth or fifth longest. 
Buceros monoceros. — The Malabar Hornbill. 
Plate XL. fig. 1. 
Black above, extending to the bottom of the jugulum, breast 
and thighs white ; middle tail feathers black, external feathers 
white; bill pale yellow; hory crest black in front and yellow 
behind. Two feet long. Inhabits Malabar. 
Genus 3.—PRIONITES.— Illicjer. 
Generic Character. —Bill strong, hard, middle-sized, convex 
above, and hooked towards its point, where it is compressed; 
edges of the mandibles serrated ; nostrils lateral, oblique, situ¬ 
ated at the base of the bill, open, but partially covered by fea¬ 
thers ; toes lateral, unequal, the internal one being very short, 
joined at its base; the external united to the second joint; 
wings short; the first three quills graduated, the fourth and 
fifth longest. 
Prionites rujicapillus .— The Red-Headed Saw-Bill. 
Plate XXXVII. fig. 6. 
Head reddish-brown, back and wings brownish-green; pri¬ 
maries and tail verdigris-colour, greenish above; abdomen fer¬ 
ruginous ; a black patch around the eyes; bill horn-colour. 
Fourteen inches long. Inhabits Paraguay. 
Genus 4.—CORVUS.— Linnceus. 
Generic Character. —Bill thick, straight at its base, slightly 
bent towards the point; nostrils concealed by reflected bristly 
feathers ; legs and feet plaited; feet with three toes before and 
one behind, divided, the tarsus longer than the middle toe; 
wings pointed, the fourth quill being the longest. 
