GYPAGUS. 219 
6’. Plumage commencing on neck with broad, normally developed feathers ; 
primaries not longer than secondaries; throat without any “dewlap” ; 
“comb” of adult male attached only to middle of cere, above nostril ; 
sexes alike; size medium (wing less than 25.00). 
Gypagus. (Page 219.) 
a’, Cere decidedly longer than upper mandible; bill comparatively weak. Adult 
males without fleshy “comb” or lobe surmounting cere. 
b'. Entire neck bare of feathers; plumage commencing abruptly with lanceo- 
late or penicillate feathers, these continued over breast and belly; head 
much elongated, the upper outline of the cere elevated posteriorly above 
the level of the flattened forehead; very large (wing 30.00, or more). 
Nostril very small, occupying not more than the basal third of the 
nasal fossx, its anterior end acute; bill small, the mandibles de- 
cidedly broader than deep, the lower as deep as the upper; skin of 
head and neck smooth; tail even... Pseudogryphus. (Page 220.) 
6°. Head only, or with only upper part of neck, naked; plumage commencing 
gradually on upper part or middle of neck with broad, normal feathers, 
those of the breast and belly broad and blended; forehead elevated 
above the upper outline of cere; bill stronger, with hook of upper man- 
dible well developed; much smaller (wing less than 25.00). 
c'. Nostrils very large and broad, occupying the whole of the nasal fosse, 
both ends broadly rounded; wing lengthened, the quills reaching to 
or beyond tip of the much rounded tail... Cathartes. (Page 220.) 
c’. Nostrils small and narrow, occupying only the posterior half of the 
nasal fosse, the anterior end pointed; wing short, rounded, the 
quills scarcely reaching to the middle of the even or slightly emar- 
gimated tail.......cssscssseresssccosescncecevecsees Catharista. (Page 221.) 
Genus GYPAGUS Virituor. (Page 219, pl. LXIV., fig. 5.) 
Species. 
Adult: Upper neck (“ruff”) plumbeous, the feathers white at base; tertials, 
secondaries, quills, greater and primary coverts, rump, upper tail-coverts, and tail, 
black, the secondaries grayish exteriorly and edged with white; rest of plumage 
deep vinaceous-buff or pinkish cream-color above, white beneath ; naked skin of head 
and upper neck very brilliantly colored in life with yellow, orange, red, blue, ete. ; 
iris white; bill dull red in dried skins, said to be orange and black in life. Young: 
Entirely plain blackish brown, the bill and naked skin of head dusky. Length 
27.00-34.00, wing 19.00-20.00, tail 9.50-10.00, culmen 1.30-1.40, tarsus 3.60-3.65, 
middle toe 3.00-3.30. Eggs 3.70 X 2.65, plain white. Hab. Whole of tropical America, 
except West Indies, north to southern Arizona? 
G. papa (Liny.). King Vulture.? 
| } Vudtur papa Linn., 8. N. ed. 10, i. 1758, 86. Gypague papa Vieru., Nouv. Dict. xxxvi. 1819, 456. 
