BIRDS OF NORTH AND MIDDLE AMERICA. 269 
anterior claws large, very strongly curved and acute, that of the 
hallux less strongly curved, shorter than the digit. 
Coloration—Rump, upper tail-coverts, tail, and greater part of 
wings chestnut; back and scapulars brown, olive, or rufescent, the 
former sometimes narrowly streaked with paler, under parts lighter 
brown, more or less distinctly streaked, at least on chest, with 
paler, the throat sometimes dull whitish or buffy. 
Nidification.—Nests in holes of trees; eggs plain white. 
Range.—Costa Rica to Cayenne, southeastern Brazil, Paraguay, 
Bolivia, and Peru. (About twelve species.”) 
KEY TO THE SPECIES OF CAMPYLORHAMPHUS. 
a. Bill light reddish brown. 
b. Streaks on back and chest margined with black. (Western Ecuadér.) 
Campylorhamphus thoracicus (extralimital).> 
bb. Streaks on back and chest without black margins. 
c. Back cinnamon-rufous, under parts dull tawny or ochraceous. (Southwestern 
Brazil; Paraguay.)...-.....- Campylorhamphus rufodorsalis (extralimital).¢ 
cc. Back olive-brown to cinnamon-brown; under parts light buffy brown to olive- 
brown. 
d. Streaks on pileum, hindneck, and chest much broader. 
e. Remiges and rectrices cinnamon-rufous; under parts paler, more buffy, 
brown. (Campylorhamphus trochilirostris.) 
jf. Bill and tail much longer (culmen 69, tail 87 mm.); lower throat more 
broadly streaked. (‘‘Brazil.’’) 
Campylorhamphus trochilirostris major (extralimital).¢@ 
<i Bill and tail much shorter (culmen 55-59, tail 77-83 mm.), the former 
much more slender; lower throat more narrowly streaked. (Bahia to 
lower Amazon Valley, eastern Brazil.) 
Campylorhamphus trochilirostris trochilirostris (extralimital).e 
@ The following have not been examined in this connection: C. thoracicus (Sclater), 
C. lafresnayeanus (D’Orbigny), and C. dorso-immaculatus (Chapman). 
b Xiphorhynchus thoracicus Sclater, Proc. Zool. Soc. Lond., Aug., 1860, 277 (Baba- 
hoyo, w. Ecuadér; coll. P. L. Sclater); Chapman, Bull. Am. Mus. N. H., ii, 1889, 
160 (monogr.).—Xiphornis thoracicus Oberholser, Smithson. Misc. Coll., xlviii, no. 
1579, May 13, 1905, 64.—Xtphorhynchus trochilirostris thoracicus Hartert, Novit. Zool., 
ix, Dec., 1902, 616 (San Javier and Pambilar, n. w. Ecuador). 
¢ Xiphorhynchus rufodorsalis Chapman, Bull. Am. Mus. N. H., ii, no. 3, July 5, 
1889, 160 (Corumb4, Matto Grosso, s. w. Brazil; Coll. Am. Mus. Nat. Hist.).—Xiphornis 
rufodorsalis Oberholser, Smithson. Misc. Coll., xlviii, no. 1579, May 13, 1905, 64. 
@Campylorhamphus trochilirosiris major Ridgway, new subspecies. (Type, no. 
32819, coll. U. S. Nat. Mus.; adult male; ‘‘Brésil;” from Maison Verreaux.) 
€ D[endrocolaptes] trochilirostris Lichtenstein, Abh. Kénigl. Akad. Wissensch. Ber- 
lin, for 1818-19 (1820), 207, pl. 3 (Brazil; coll. Berlin Mus.; type locality given as 
Bahia in next vol., p. 263).—X [iphorhynchus] trochilirostris Maximilian, Beitr. Naturg. 
Bras., iii, 1831, 1140 (excl. syn. part).—Xiphorhynchus trochilirostris Sclater, Cat. 
Birds Brit. Mus., xv, 1890, 159, part; Chapman, Bull. Am. Mus. N. H., ii, 1889, 155 
(monogr.; excl. syn. Dendrocolaptes procurvus Temminck?); Menegaux and Hellmayr, 
Mém. Soc.. Hist. Nat. d’Autun, xix, 1906, 117 (Bahia; crit.; synonymy).—Xiphornis 
trochilirostris: Oberholser, Smithson. Misc. Coll., xlviii, no. 1579, May 13, 1905, 64. 
