1870.] MR. O. SALVIN ON THE BIRDS OF VERAGUA. 201 
Cephalopterus glabricollis. 
Calovevora; Calobre. 
Momotus lessoni. 
Chitra; Mina de Chorcha; Bugaba; V. de Chiriqui. 
Momotus martit. 
Calobre. 
Ceryle amazona. 
Calovevora ; Chitra. 
Ceryle cabanisi. 
Calovevora; Calobre. 
Galbula melanogenia. 
Mina de Chorcha; Bugaba; V. de Chiriqui. 
The southern range of this species does not seem to pass the 
district of Chiriqui. Arcé has not sent a single specimen from 
Calobre or any of the neighbouring localities. 
118. MaracopTiLa PANAMENSIS, Lafr. R. Z. 1847, p. 79. 
Mina de Chorcha ; Bugaba; V. de Chiriqui. 
After comparing together about forty specimens of Malacoptile 
from various parts of Central America and Western Ecuador, Mr. 
Sclater and I have come to the conclusion that it is not possible to 
distinguish more than two species within these limits. As already 
hinted in our paper on Panama Birds (P. Z. S. 1864, p. 363), the 
paler-plumaged birds (M. inornata, Du Bus, and M. poliopis, Scl.) 
are females of the rufous forms which we have hitherto referred to 
M. verepacis and M. panamensis. 
In the northern form, for which the term inornata is the oldest 
and must be adopted, the male is distinguishable by the rufous 
colouring extending nearly uniformly over the whole surface below, 
being slightly paler on the lower belly, and bearing very slight 
traces of dark markings on the margins of the feathers. In the 
southern form, for which the name panamensis must be retained, the 
breast alone is clear ferruginous, and is succeeded below by strongly 
mottled plumage, formed by the black lateral margins of each 
feather; the lower belly is pale fulvous, nearly white. These cha- 
racters are still more strongly marked in the specimens from Western 
Ecuador in Sclater’s collection. The females of the two forms are 
so exactly alike that it is not possible to distinguish them. 
Of the northern form (M. inornata) all the specimens we have 
seen are from Guatemala. The birds from Costa Rica, Veragua, 
Panama, and Western Ecuador all belong to the southern form 
(M. panamensis), to which it seems M. costaricensis (Cab. J. f. Orn. 
1862, p. 172) must be united. 
119. Bucco pysont, G. R. Gray ; Scl. Cat. Am. B. p. 269. 
Mina de Chorcha; Bugaba. 
This species, though recorded both from Guatemala and Panama, 
has not yet appeared in the Costa-Rica lists. 
