7-4 Proceedings of the Biological Society of Washington. 



brown), with the lateral margin but little paler; and the under wing- 

 coverts and base of the primaries below deeper rusty buff. 



Type, No. 32,186, Collection Carnegie Museum, adult male; La Lajita, 

 Rio Caura, Venezuela, November 3, 1909; M. A. Carriker, Jr. 

 Sclerurus rufigularis fulvigularis, subsp. nov. 



Near Sclerurus rufigularis rufigularis von Pelzeln of northern Brazil, 

 but throat and breast paler (more buffy, less rufescent) and less uniform, 

 with distinct flammulations. 



Type, No. 60,822, Collection Carnegie Museum, adult male; Tamanoir, 

 French Guiana, April 23, 1917; Samuel M. Klages. 



Microxenops milleri guianensis, subsp. nov. 



Similar to Microxenops milleri milleri Chapman, from the headwaters 

 of the Orinoco, with which it agrees in pattern of coloration, but bill more 

 slender, and tail longer; wing-coverts more rusty, and bend of wing and 

 under wing-coverts deeper in tone; pileum darker, with the stripes more 

 rusty and more sharply defined. Wing (type), 66; tail, 38; exposed cul- 

 men, 12; tarsus, 15. 



Type, No. 61,307, Collection Carnegie Museum, adult male; Tamanoir, 

 French Guiana, May 8, 1917; Samuel M. Klages. 



Furnarius leucopus exilis, subsp. nov. 



Similar to Furnarius leucopus agnatus Sclater and Salvin, but decidedly 

 more deeply colored throughout, and wing and bill shorter. Wing (type), 

 89; tail, 52; exposed culmen, 23. 



Type, No. 49,568, Collection Carnegie Museum, adult male, Fundacion, 

 Santa Marta, Colombia, October 11, 1915; M. A. Carriker, Jr. 



Dendrocolaptes certhia medius, subsp. nov. 



Similar to Dendrocolaptes certhia certhia (Boddaert), of Guiana, etc., 

 but under parts obviously paler, less rufescent, with the cross-barring 

 narrower and less distinct. 



Type, No. 69,352, Collection Carnegie Museum, adult male; Benevides, 

 Para, Brazil, September 17, 1918; Samuel M. Klages. 



Veniliornis oleaginus exsul, subsp. nov. 



Similar to Veniliornis oleaginus fumigatus (Lafresnaye and D'Orbigny), 

 but averaging darker, deeper, brownish olive below (in the dark phase), and 

 obviously more uniform. 



Type, No. 38,652, Collection Carnegie Museum, adult male; Sierra 

 Nevada de Santa Marta (6000 feet), Colombia, April 1, 1912; M. A. 

 Carriker, Jr. 



Nyctipolus maculosus, sp. nov. 



Above mottled gray and rusty buff, the pileum with broad and distinct 

 mesial streaks of black, narrowing on the hindneck; scapulars with broad 

 outer margins of ochraceous buff, preceded by a black area; lesser wing- 

 coverts black, with irregular bars and spots of chestnut; middle and greater 

 coverts similar, with terminal spots of buffy or ochraceous buff; primaries 



