^>Oi/^ll^ Vol. 60; pp. 149-164 /y, December 31, 1947 PRQCEEDINCS _ . OF THE ~^^^^' BIOLOGICAL SOCIETY OF WASHINGTON TEN NEW SUBSPECIES OF BIRDS FROM VENEZUELA By "William H. Phelps and William H. Phelps, Je. The senior author wishes to thank Dr. John T. Zimmer of the American Museum of Natural History, Dr. Herbert Fried-mann of the United States National Museum, Mr. Rodolphe Meyer de Schauensee of the Academy of Natural Sciences of Philadelphia and Mr. Emmet R. Blake of the Chicago Natural History Museum for their help in the examination of material in their museums. The apparently new subspecies here described are in the Phelps Collection, Caracas, and unless otherwise specified, the specimens listed as examined are in the same collection. Names of colors are capitalized when direct comparison has been made with Ridgway's ''Color Standards and Color Nomenclature." Malacoptila fusca veneznelae, new subspecies Type: From Gerro Yacapana, Eio Orinoco, Territorio Amazonas, Venezuela; altitude 110 meters. No. 39085, Phelps Collection, Caracas. Adult male collected May 19, 1947, by Manuel Castro. (Type on deposit at the American Museum of Natural History.) Diagnosis: The back is darker, blacker, less brownish, than M. f. fusca. Range: Known only from Cerro Yacapana and from Campamento La Cruz on the Yavita-Pimichin portage. Description of Type: Top of head and nape black, the feathers with narrow whitish shaft streaks, more buffy on forehead; back and uropygiura dusky brown, the feathers with wide buffy shaft streaks; lores whitish ; nasal and loral bristles black ; sides of head black ; ear-coverts and gular region with buffy white shaft streaks; a whitish superciliary streak. Chin and sides of throat blackish brown striped with buffy; throat white; breast and sides blackish brown broadly striped with buffy, much paler on abdomen, merging to pale buffy white on vent and under tail-coverts. Eemiges dark Sepia very narrowly edged with buffy, the tertials paler with narrow pale apical shaft streaks; inner edges of remiges narrowly and basally edged with Pale Ochraceous-Buff; upper wing-coverts and axillaries buffy with a streak of dark 33 — Peoc. Biol. Soc. Wash., Vol. 60, 1947 (149) H2