FAMILY DENDROCOLAPTIDAE 53 



the nest had no protection from the rain." The single egg, which I 

 have examined in the British Museum (Natural History) is white, 

 with faint gloss, and short subelliptical in form. It measures 23.9 X 

 21.0 mm. (Through error Schonwetter, Handb. Ool. pt. 14, 1967, p. 

 18, lists the size as 28.4x20.8 mm.) I find that male and female 

 skins in the British Museum, collected by Salmon at Remedios, 

 Antioquia, average darker than specimens of C. t. venecnelensis from 

 Venezuela, and are to be identified as the race hrevipennis. Specimens 

 collected for me by M. A. Carriker, Jr., at the Hacienda Belen, on 

 the headwaters of the Rio Nechi about 15 kilometers northwest of 

 Remedios also are the subspecies hrevipennis, so that the ^gg is to be 

 assigned to that race. 



CAMPYLORHAMPHUS PUSILLUS (Sclater) : Brown-billed 

 Scythebill, Trepador Pico de Hoz 



Xiphorhynchns ptisilhis P. L. Sclater, Proc. Zool. Soc. London, pt. 28, August 

 1860, p. 278, footnote. (Bogota, Colombia.) 



Much darker than the related species, with dark brown bill ; 

 slightly smaller. 



Description. — Length 220-240 mm. Adult (sexes alike), crown, 

 sides of head, and hindneck sooty brown to black, streaked narrowly 

 with buff; back and scapulars brown with narrow streaks, mainly on 

 upper back, of pale buff; rump cinnamon-rufous changing to rufous 

 on upper tail coverts ; tail chestnut ; wings also chestnut, in some 

 duller on outer webs, tipped with dusky ; sides of head and neck 

 sooty ; chin and throat buff, the lower feathers edged with sooty black ; 

 rest of f oreneck, breast, and sides brown, lined narrowly with buff ; 

 abdomen usually paler and without streaks ; under tail coverts more 

 or less rufescent, with shaft lines of buff; axillars cinnamon; under 

 wing coverts, and anterior under surface of wing cinnamon-buff. 



The bill in a male collected by D. Koslovsky, J. Sawyer, and D. B. 

 Means March 18, 1967, at Nueva Suiza, Chiriqui, is marked as dark 

 brown. The label of a male in the American Museum of Natural 

 History collected by Austin Paul Smith April 5, 1920, at Aquiares, 

 Costa Rica, lists the maxilla as black, mandible horn color, tarsus 

 dark olive. This is a rare species that ranges north beyond Panama 

 through much of Costa Rica, mainly in the highland forests of the 

 Subtropical Zone. The little on record indicates merely that it has 

 the habit of other species of its family in climbing up the trunks and 

 larger limbs of trees. 



While the two slightly different populations of Panama (with one 



