( 57 ) 
]2. TouBAcos. Go- 
RYTHAIX, lllig. 
Beak not ascend- A crest, which they Africa. 
Ing on the forehead, have the power of 
1 Fig. 153. P. Afri- elevating. 
I \canus. Lath. 
^\13. MUSOPHAGA , 
Isert. Banana- 
eaters. 
Beak forming a Ditto, 
disk which covers 
part of the fore- 
head. Fig. 152. M. 
\violacea_, Lath. 
(1) They have the wings and tails of the Hoccos ; their beak is short, the upper 
mandible swelled, and theie is a short membrane between the front toes , but the 
exterior toe is often directed backwards ; their nostrils are simply pierced in the horn of 
their beak, the edges( of the mandible are dentated, and the sternum, at least that 
of the Touraco, has not the great notches ordinarily found in ihe^Gallinacece. 
