| OCR Text |
Show 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 martii. 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. Arce has not sent a single specimen from Calobre or any of the neighbouring localities. 118. MALACOPTILA PANAMENSIS, Lafr. R. Z. 1847, p. 79. Mina de Chorcha; Bugaba; V. de Chiriqui. After comparing together about forty specimens of Malacoptilce 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 (31. inornata, D u Bus, and M. poliopis, Scl.) are females of the rufous forms which we have hitherto referred to M. vereepacis 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 characters are still more strongly marked in the specimens from Western Ecuador in Sclater's collection. The females of the two forms are so exactlv 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 D Y S O N I , G. R. Gray; Scl. Cat. A m . B. p. 269. Mina cle Chorcha ; Bugaba. This species, though recorded both from Guatemala and Panama, has not yet appeared in the Costa-Rica lists. |
