NO. 1116, PROCEEDINGS OF THE NATIONAL MUSEUM. 553 



culmen to angle of gonys, 0.50 j width of inaudible at base, 0.37; tarsus, 

 1; middle toe, 0.70. 



Immature male.— ISo. 116039, U.S.N.M.; ludefatigable Island, April 

 12; C. II, Townsend. Above liglit grayish olive, tlie-top of the head 

 rather grayer, broadly but rather iudistinctly streaked with dusky, the 

 feathers of the back still more broadly but much less distinctly darker 

 medially. Supraloral region, malar and suborbital regions, and entire 

 under parts dull grayish white, faintly tinged with yellowish buff, 

 especially on chest and breast; the former and sides of the latter 

 broadly but very indistinctly streaked with grayish dusky. Bill dusky 

 horn color, light brown on edge of maxilla and terminal two thirds of 

 inaudible; tarsi and toes brownish black. Length (skin), 5.30; wing, 

 2.90; tail, 1.80; culmen, O.GO, very strongly arched; depth of bill at 

 base, 0.45, from base of culmen to angle of gonys, 0.47; tarsus, 0.90; 

 middle toe, 0.62. 



Adult female. — No. 564, collection of Dr. G. Baur ; James Island, Gala- 

 pagos, August 17, 1891. Above light grayish olive, the pileum obso- 

 letely streaked with darker and the feathers of 

 the back and scapulars darker centrally, produc- 

 ing ail obsolete spotting; rump and upper tail- 

 coverts quite uniform, the latter paler and grayer ; 

 wings and tail dusky brownish gray, the feath- 

 ers with light grayish olive margins, the middle 

 wing-coverts broadly tipped with this color, 

 forming an indistinct baud, the greater coverts y 



more narrowly tipped with a i)aler and some- rig. 6. Head of Cama)%ric7ms 

 what more bufty tint. Lores, orbital region, psutacuius? 



' . [.[, {Tv-pe ot C. lowiisendi.) 



cheeks, and under parts dull grayish buffy 



whitish, tinged with dull buff on sides and flanks, where obsoletely 

 streaked with darker; ear-coverts very pale olive-grayish, shading pos- 

 teriorly into the darker color of the hind neck and below into the dull 

 whitish of the malar region; under wing-coverts white, tinged along 

 edge of the wing with pale yellowish buff. Maxilla cinnamon-brown, 

 becoming dusky at tip and on terminal portion of culmen; mandible 

 buff-yellowish; "iris dark brown;" legs and feet brownish black. 

 Length (skin), 4.70; wing, 2.77; tail, 1.75; culmen, 0.61; gonys, 0.32; 

 width of mandible at base, 0.34; depth of bill at base. 0.45; tarsus, 

 0.90; middle toe, 0.60. 



Immature female. — 'No. 582; same locality, etc., August 18. Different 

 from the preceding only in the wing-markings, both the middle and 

 greater coverts having much narrower and more sharply defined termi- 

 nal margins of buffy whitish, the secoudaries similarly but less dis- 

 tinctly marked. Length (skin), 4.55; wing, 2.64; tail, 1.60; culmen, 

 0.55, gonys, 0.30; width of mandible at base, 0.33; depth of bill at 

 base, 0.44; tarsus, 0.90; middle toe, 0.60. 



An adult female from Jervis Island in Dr. Baur's collection (No. 464, 



