laa?.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 527 



(grayish olivebrowu) and much gTeater extent of the exterior portion 

 of the feathers ; farther down the belly and along- sides the markings 

 gradually become still less distinct and more longitudinal, becoming 

 nearly obsolete on flanks and under tail-coverts, the general color of 

 which is light olive-brownish ; under wing coverts deep ochraceous. 

 Bill (both mandibles), legs, and feet dusky horn-color. Length (skin) 

 7.30; wing 3.75, tail 3.25, exposed cuhueu 1.15, bill from nostril .85, 

 tarsus .85. 



14. Dendrocolaptes obsoletus, sp. nov. 



Sp. guar. — Resembling D. certhia (Bodd.), but general color lighter, 

 with much narrower and less distinct dusky bars or lunules on lower 

 parts, etc, ; size somewhat less, bill more slender, and black instead of 

 pale brown. 



Habitat. — Lower Amazon (Diamantina). 



Adult male (Diamantina, Lower Amazon, July 11, 1887 ; 0. B. Riker) : 

 Head, neck, and lower parts light buffy olive, becoming [)aler and more 

 grayish on chin, throat, and cheeks, and more decidedly buffy on pos- 

 terior under parts; back and scapulars deeper, more tawnj", olive, tinged 

 with rust3^ posteriorly. Feathers of pileum and hind-neck each marked 

 with a blackish terminal margin immediately preceded by a much broader 

 indistinct lunule of a paler tint than the ground color ; feathers of back 

 very iudistinctly tipped with blackish, forming scattered, nearly obso- 

 lete bars. Lores dull buffy grayish, the feathers with pale buffy or dull 

 whitish shafts ; auriculars marked with similar but more distinct shaft" 

 streaks and somewhat, though faintly, clouded with dusky ; feathers 

 of chiu and npper throat also with fine and inconspicuous dull buffy 

 whitish shaft-streaks, but otherwise without distinct markings; rest of 

 lower parts marked with very narrow and indistinct lunulate bars of 

 dusky, these becoming obsolete on sides, flanks, and longer under tail- 

 coverts ; under wing-coverts, axillars, and under surface of remiges plain 

 tawny or deep tawny ochraceous. Prevailing color of wings Mars brown, 

 more olivaceous on outer webs of primaries, and changing to clear chest- 

 nut on secondaries and tips of primaries; middle coverts tinged with 

 rusty, and marked with a broad subterminal lunule of dull tawny, in- 

 closed between two narrow blackish lunules, the last (terminal) of which 

 is less distinct. Rump and upper tail-coverts bright rusty ; tail uniform 

 deep chestnut, with shafts nearly black. Bill black, inclining to dark 

 brown on basal half of lower mandible ; feet blackish (dark plumbeous 

 in life). Length (skin) 10.30; wing 4.95, tail 5, exposed culmen 1.45, bill 

 from nostril 1.10, depth through nostril .32, tarsus 1.10. 



15. Zenaida jessieae, Riker, MS." 



Sp. char. — Similar to Z. vinaGeo-rufa Ridgw., but terminal portion 

 of rectrices pale vinaceous, fading into almost white on outer feather, 



*This new speciea is dedicatecT to my wife, who assisted me in making this collec- 

 tion, and who prepared the type specimen.— C. B. R. 



