224 
Messrs. Sclater and Salvin on the 
rascens is much more numerous, and occurs abundantly in many 
parts. It is said to build in trees. The Spanish name is ‘ Pavo / 
which is translated as { Turkey ’ by some, and ‘ Peacock ’ by 
other writers on Central America. 
316. Penelope nigra, Fraser, P. Z. S. 1850, p. 246, pi. xxix. 
In the British Museum. Transmitted by Mr. Skinner. 
317. Ortalida yetula (Wagler). Penelope vetula, Wagl. Isis, 
1830, p. 1112; Moore in P. Z. S. 1859, p. 62. 
Transmitted by Mr. Skinner. In Sir William Jardine^s col¬ 
lection. Birds of this genus are common in both the coast- 
regions, and known by the name of e Chacha They inhabit 
the forests, and are always seen on the trees. 
318. Ortalida leucogastra (Gould). Penelope alhiventer, 
Less. Rev. Zool. 1842, p. 174 (nec Wagl.). Penelope leuco¬ 
gastra, Gould, P. Z. S. 1843, p. 105 ; Gould, Voy. Sulphur, Zool. 
p. 48, pi. xxxi. 
This Guan is very abundant in the Pacific coast-region, where, 
in the neighbourhood of the more remote and smaller villages, the 
woods in the early morning resound with its loud continued 
cries. Like Penelope purpurascens, it is usually seen in trees, 
and shows little symptom of alarm on one approaching. The 
time of breeding seems to extend over some period, as young 
birds and fresh eggs were observed simultaneously in the month 
of March. The former appear to run almost immediately on 
becoming free from the shell, and, clinging to the branches of the 
underwood, are nimble in eluding capture. The nest is usually 
placed in a low bush, and is composed entirely of small twigs. 
The eggs, two in number, are of rough texture, and in colour 
pure creamy-white; they meesure, axis 1*25 in., diam. 1*5 in. 
Subfam. Oreophasidin^:. 
319. Oreophasis derbianus, Gray & Mitch. Gen. of Birds, 
pi. 121: O. fronticornis , V. d. Hoeven. 
This bird, one of the most curious as well as the most in¬ 
teresting in Central America, is extremely rare, and its range, as 
far as is at present known, circumscribed within very narrow limits. 
The single volcanic peak 'el Volcan de Fuego* is generally said 
