218 
Messrs. Sclater and Salvm on the 
276. Asturina brachyura (VieilL). Buteo brachyurus, 
Vieill. Nouy. Diet. iv. p. 477; Pucheran, R. Z. 1850, p. 86. 
Asturina albifrons, Kaup, Isis, 1847, p. 200, et Contr. Orn. 
1850, p. 67. 
One specimen of this fine species, transmitted by Mr. Skinner, 
is now in the Norwich Museum. 
Subfam. Accipitrin^:. 
277. Geranospiza ctERULESGENs (Vieill.). Sparvius ccerules- 
cens , Vieill. Nouv. Diet. x. 318. Falco gracilis et Falco hemi - 
dactylus , Temm. PL Col. 91 et 3. Ischnosceles niqer. Du Bus. 
Esq. Orn. pi. 16. 
The best authorities now seem to be agreed that there is only 
one species of this form. As that occurs in Southern Mexico 
as well as in South America, there can be no doubt of its also 
being found in Guatemala. 
278. Micrastur gilyicollis (Vieill.). Sparvius gilvicollis , 
Vieill. Micrastur concentricus, auct. 
Transmitted by Mr. Skinner. . 
279. Micrastur rupicollis (Vieill.). Sparvius ruficollis , 
Vieill. Falco xanthothorax , Temm. PI. Col. 92. 
A skin of this bird received from Mr. Skinner is in Salvin’s 
collection. 
280. Micrastur semitorquatus (Vieill.). Sparvius semi- 
tor quatus, Vieill. Falco brachypterus , Temm. Pl. Col. 116,141. 
Falco percontator, Cabot, Boston Journ. iv. 462. 
Examples of this species have been transmitted by Mr. Skin¬ 
ner. Dr. Cabot observed it in Yucatan. 
281. Accipiter puscus (Gm.). (N. A.) 
This species occurs rarely in the Pacific coast-region. Exam¬ 
ples also have been transmitted from Vera Paz. 
282. Accipiter erythrocnemis, Kaup, Jard. Contr. Orn. 
1850, p. 64. 
Transmitted by Mr. Skinner. Nisus chionogaster, Kaup 
(P. Z. S. 1851, p. 41), from Coban, is probably nothing more 
than this species. 
