Mr. P. L. Sclater on the Genus Grallaria. 
441 
pi. 2; Scl. et Salv. Ibis, 1859, p. 119, et Nom. Av. Neotr. 
p. 75; Salvin, Ibis, 1861, p. 354; Scl. Cat. A. B. p. 191. 
Chamceza guatemalensis , Bp. Consp. p. 204. 
Similis prsecedenti, sed crassitie minore, et abdominis colore 
saturatiore distinguenda : long, tota 7*0, alse 4’5, caudse 
1*5, tarsi 2*0. 
Hah. Guatemala. 
Mus. P. L. S. et S.-G. 
This Ant-Thrush was obtained by Mr. Salvin in the forests 
of Yera Paz, in those of Western Guatemala, and also on the 
slopes of the Yolcan de Fuego, where it ascends to a height 
of 8000 feet above the sea-level. In the young bird the head 
and breast are blackish, curiously variegated with fulvous 
centre-spots. 
-f-5. Grallaria princeps. 
Grallaria guatemalensis , Salvin, P. Z. S. 1867, p. 146. 
Grallaria princeps, Scl. et Salv. P. Z. S. 1869, p. 418; Salv. 
P. Z. S. 1870, p. 196. 
Supra oleaginea, plumis nigro marginatis; pileo et collo pos- 
tico valde obscurioribus et cineraceo tinctis; loris et 
oculorum ambitu rufescentibus; alis obscure fuscis, 
extiis et intus castaneo limbatis; cauda omnino fusces- 
centi-castanea : subtus saturate ferruginea, pectore paulo 
obscuriore, gutturis medii plumis nigro variegatis; rostro 
obscure corneo, mandibulse basi albicante; pedibus cory- 
linis : long, tota 6*5, alse 4*3, caudse 1*7, tarsi 1*9, rostri 
a rictu 1*3. 
Hab. Yeragua, Chiriqui ( Arce ). 
Mus. S.-G. 
Obs. Similis G. guatemalensi, sed rostro robustiore, altiore, 
colore corporis superi obscuriore, ventris autem rubiginoso 
saturatiore distinguenda. 
6. Grallaria regulus. 
Grallaria regulus , Sclater, P.Z. S. 1860, p. 66, et Cat. A. 
B. p. 192; Scl. et Salv. Nom. Av. Neotr. p. 196. 
Brunnescenti-olivacea, pileo cinerascentiore; dorsi plumis 
nigro circumcinctis; alis nigricantibus, extus brunneo 
limbatis ; cauda brevissima, unicolore brunnea : subtus 
saturate ferruginea, gutture et pectore nigricantiore per- 
