136 COTINGIDA. 
separate the Rupicoline and Cotingine from the Lipaugine and Attiline, but we doubt 
if their supposed absence or presence will eventually prove of much use in the classifi- 
cation of these groups. In Cotinga the bristles are small, and in Carpodectes they 
appear to be wholly wanting ; but in all the other genera they can be traced without 
much difficulty. Their development, of course, is not nearly so advanced as in Attila 
and Lipaugus, but still they can be seen. 
The Cotingine had therefore better for the present be defined as Cotingide in which 
the rictal bristles are absent or small. This will bring Chasmorhynchus into the Cotin- 
gine and remove it from the Queruline, in which the rictal bristles are very strong. 
COTINGA. 
Cotinga, Brisson, Orn. ii. p. 339 (1760) ; Scl. Cat. Birds Brit. Mus. xiv. p. 382. 
Cotinga contains eight species which are spread over the tropical portions of the 
Neotropical Region from the forests of the southern parts of the Mexican State of Vera 
Cruz to South-eastern Brazil. Two allied species are found within our region—one, 
C. amabilis, extending from Southern Mexico to Eastern Costa Rica; the other, 
C. ridgwayi, occurring in Western Costa Rica and the State of Panama. 
The bill in C. amabilis is short, wide at the base, and converging in concave lines to 
the tip; the culmen is gradually curved from the base, a little more abruptly towards 
the tip, and there is a small subterminal notch on the tomia of the maxilla; the nostrils 
are open and fully exposed, the short thick-set frontal and supra-nasal feathers not 
extending to the proximal end of the opening. The rictal bristles are small ; the tarsi 
are short, and the outer and middle toes are but slightly united at the base. 
The differences in the comparative lengths and form of the primaries in Cotinga are 
most remarkable. In C. amabilis the second primary is the longest, the first longer 
than the third, the fourth shorter than the fifth; none of them are much reduced in 
width, and the ends are rounded. 
In C. ridgwayt the fourth is the longest, the third and fifth are equal, the first=the 
sixth, the second a little longer than the first. Both first and second are reduced in 
width, the second more than the first, and it is moreover slightly curved inwards towards 
the tip. The two species are thus quite different as regards the form of the wing. 
Of the other species of Cotinga, C. cerulea and C. cincta resemble C. amabilis in 
having a shortened fourth primary, but the first three are all more pointed. C. cayana 
has a fourth primary as long as the third, and the first and second are pointed, the third 
being normal. C. maynana has the third primary a trifle shorter than the second and 
fourth, and both it and the first are narrower towards the tip than the second. The 
wing of C. nattereri is a slight modification of that of C. redgwayt. 
C. porphyrolema has a normal wing, none of the feathers being shortened out of 
erder or attenuated. 
