1870.] MESSRS. SCLATER AND SALVIN ON THE CRACID#. 511 
collection. The names of ten other species are referred to as perhaps 
valid. Six species of this subfamily are here described as new, viz. : 
G. R. Gray. (Of this Synopsis. ) 
Penelope jacquint = Pipile cumanensis. 
Ortalida superciliaris = O. superciliaris. 
O. bronzina = O. ruficauda. 
O. plumbeiceps = O. vetula. 
O. wagleri = O. wagleri. 
O. cinereiceps = O. cinereiceps. 
Mr. Gray’s second subfamily, Cracine, is divided into two genera, 
Crax and Pauzt, the former containing seven, the latter three species. 
Three species of Craz are likewise mentioned, of which no specimens 
are in the national collection. Two species of Crax are described as 
new, viz. C. selateri and C. daubentoni. We mainly agree with, 
and have very nearly followed, Mr. Gray’s discrimination of the 
species of this difficult genus, the principal difference being that we 
have restored to the species which he calls C. dlumenbachit what we 
have endeavoured to show is its older name, C. globicera. 
(1867.) Salvin, in his article on the birds of Veragua, published 
in the ‘ Proceedings’ of this Society, describes a second species of 
the genus Chamepetes, C. unicolor. 
(1868.) Prof. Huxley, in his article “On the Classification and 
Distribution of the Alectoromorpha and Heteromorpha,” published 
in this Society’s “Proceedings,” defines the Alectoromorpha, or 
typical Gallinaceous birds, and shows that they are divisible into 
two primary groups—the Peristeropodes and Alectoropodes, of 
which the former embraces two families, the Cracide and Megapo- 
dide. The exact position of the Cracide in the Systema is thus 
first accurately determined. 
(1869.) Dr. Cabanis, in one of his articles upon the birds of Costa 
Rica, describes as new Ortalida frantzii, which, however, =O. cine- 
reiceps, G. R. Gray (1867). 
(1870.) The third portion of Von Pelzeln’s ‘Ornithologie Bra- 
siliens’ contains a most important addition to our knowledge of the 
Cracip& in the account of the species of this group collected by 
Natterer, altogether 22 in number. Two of these are described as 
new; and a third (Craz mikani) is characterized from specimens in 
the Imperial Cabinet derived from another source. Descriptions 
are likewise given of other, imperfectly known species; and many 
important notes are added, taken either from Natterer’s MS. or 
from v. Pelzeln’s own observation. The subjoined list will show 
the alterations we have ventured to propose in v. Pelzeln’s nomen- 
clature :— 
Orn. Bras. v. Pelzeln. ’ (Of this Synopsis.) 
P. 280. Penelope cristata = Penelope greeyi? 
281. P. nigricapilla = P. jacupeba. 
283. P. natterert = Pipile cumanensis. 
284. P. grayi = P. cumanensis. 
285. Ortalida supereiliaris= Ortalida araucuan. 
