BIRDS OF NORTH AND MIDDLE AMERICA. 483 



on the lower rump; wings and tail dusk}' grayish brown, the feathers 

 with distinct lighter margins (very narrow, and pale olive-gra}' on the 

 primaries), the middle and greater eoyerts tipped with dull l)uff, form- 

 ing two fairly distinct bands; a superciliarj' stripe (disappearing 

 aboye the ear-coyerts), and general color of under parts pale yellowish 

 buff, shaded with brownish along the sides and ilanks, where obsoletely 

 streaked (most distinctly on flanks) with dusky oliyaceous; under wing- 

 coyerts white, tinged, Especially along edge of wing, with pale cream- 

 yellow; maxilla light cinnamon with dusky tip; mandible yery pale 

 brownish buffy; "iris dark brown;'' legs and feet blackish brown; 

 length (skin), 109.22; wing, 63.50; tail, 38.10; culmen, 13.46; gonys, 

 7.3T; width of mandible at base, 7.3T; tarsus, 20.83; middle toe, 14.48.^ 

 Galapagos Archipelago (James and Duncan Islands). 



Camarliiinchiis liicerfus Ridgway, Proc. U. S. Nat. Mus., xviii, no. 1067, Apr. 23, 

 1896, 294 (.Tames I., Galapagos Archipelago; collei'tion of Dr. G. Baur); 

 xix, 1897,560 (monogr. ). 



Geospiza incerta Rothschild and Hartert, Xovit. ZooL, vi, Aug., 1899, 168 

 (James and Duncan islands; (;rit.). 



CAMARHYNCHUS PAUPER Ridgway. 

 SMALL-BILLED GROTJND FINCH. 



Similar to C.psittaculuH and allies, but with the Ijill very much more 

 slender; similar to Cprosthcmelas, but much larger. 



Adult male. — Pileum and hindneck dull blackish brown, indis- 

 tinctly streaked with gra^dsh olive; sides of head nearly plain grayish 

 olive, more dusky on cheeks; throat and chest dull black, broken by 

 occasional streaks of pale olive-buff, this color predominating on chin; 

 rest of under parts very pale olive-buff, inclining to white, the whole 

 breast broadly streaked with blackish, these streaks continued back- 

 ward over sides to flanks, both the latter being light buffy olive later- 

 ally; under tail-coverts decided pale buff; upper parts olive, lighter 

 on rump, the feathers of the dorsal tract much darker centrally, form- 

 ing very broad but rather indistinct dusky streaks; bill entirel}^ deep 

 black; legs and feet brownish black; length (skins), about 114.30- 

 127.00; wing, 71.12-72.3i;> (71.88); tail, 43.18- 3.94 (43.56); culmen, 

 14.73; gonys, 7.37-7.62 (7.49); width of mandible at base, 7.62; depth 

 of bill at base, 9.40; tarsus, 23.11; middle toe, 15.24-16.00 (15.62).' 



^Type, no. 521, Baur coll. (Tring Museum), James Island, Galapagos, Aug. 13, 1891. 



The bird described above is absolutely similar in coloration to C salvini, of Chatham 

 Island, but is nearly as large as C. compressirostris. Ayere these two species found 

 together on the same island, I would be disposed to consider the present bird a 

 hybrid; but manifestly this can not be the case. It is possible that a larger series of 

 specimens would run C. compressirostris and C. incertus together, in which case there 

 would be another form common to the two islands of James and Jervis; but for the 

 present I have to consider them as different. 



^ Two specimens. 



