File:The genera of birds (18990313659).jpg

Order II. PASSERES.
Tribe IV. Conirostres.
The seventh Family,
BUCEKOTID/E, or Hornbills,
have the Bill more or less lengthened, curved, broad at the base, and compressed to the end ; with the
culmen furnished with a singularly formed helmet, or only curved to the tip, which is acute ; the Nostrils
basal, and usually rounded : the Wings moderate : the Tail generally long, broad, and more or less
graduated : the Tarsi, in most, short and strong : the Toes moderate, strong, and more or less united at
their base, especially the outer toe : the Claws short, and rather obtuse.
The only Subfamily,
BUCEROTIN.E, or Hornbills,
have similar characters to those given above.
Euiiyceros Less*
Bill large, and broad at the base, with the culmen much elevated, projecting on the forehead, keeled,
and curved to the tip, which is hooked and strongly einarginated ; the sides much compressed from the
base to the end ; the gonys rather short, and ascending ; the nostrils lateral and basal, with the opening
rounded and exposed. Wings long, with the fourth and fifth quills equal and longest. Tail moderate,
broad, and rounded. Tarsi moderate, rather strong, and covered in front with transverse scales, the
divisions of which are slightly apparent. Toes long ; the inner shorter than the outer toe, the latter
united to the first joint ; the hind toe long and strong ; the claws long, strong, curved, and acute.
The type of this genus is found in Madagascar. Its manners and habits are unknown.
E. Prevostii Less. Cent, de Zool. t. 74., Illustr. de Zool. t. 13.

• Established by M. Lesson in 1830 (Centurie de Zoologie).