( 318 ) 
No. 462. ¢ ad., Calama, 26. viii. 1907.—Wing 62; tail 65; bill 15 mm. 
No. 420. 9 vix ad., Calama, Island of Sta. Barba, 18. viii. 1907—Wing 603 ; 
tail 64; bill 14} mm. 
No. 780. ¢ imm., Allianca, 12. xi. 1907.— Wing 614; tail 66 ; bill 14 mm. 
“ Tris brown, feet grey, bill black, lower mandible pale.” 
Besides the above, 1 have examined the typical examples in the. Vienna 
Museum (a couple from Borba, one from Salto do Girao), an adult female from 
Humaytha, and two males from the Rio Puras (Monte Verde, Bom Lugar: Para 
Museum). ‘The series differs from a very large number of skins of trne 
S. g. gujanensis* by having the under parts nearly uniform rusty buff, with very 
little, if any, whitish admixture along the middle line of the abdomen. In the 
typical race, the foreneck, chest, and sides are buffy brown or pale earthy brown, 
while the middle of the breast and abdomen is extensively creamy white. Although 
single specimens are not always easily to be told, yet the difference is sufliciently 
marked to justify the recognition of S. g. inornata. By the bright coloration of the 
lower parts it slightly approaches S. albilora Pelz.,t but the latter is distinguished 
at a glance by the upper tail-coverts and tertials being cinnamon-rufons like the tail 
(instead of earthy brown like the back). The back, too, is fulvous brown mixed 
with cinnamon (instead of dull earthy brown), and the under surface is decidedly 
deeper ochraceous. : 
S. g. inornata, as here defined, inhabits the tract of country between the 
Madeira Valley (Borba, Calama, Humaytha, Salto do Girao) and the Upper Purts. 
I suspect, however, that the bird from the Rio Jurud identified as S. albilora by 
Prof, Ihering ¢ will also prove to belong to it. 
[166. Synallaxis mustelina Sel. 
Synallaxis mustelina (Natterer MS.) Sclater, Proc. Zool, Soc. Lond. 1874. p. 14 (1874.—Rio Madeira). 
S. cinnamomea (errore !) Pelzeln, Zur Orn. Bras. i. p. 37 (Rio Madeira, below the mouth of the Rio 
Marmellos). 
Rio Madeira : below the mouth of the Rio Marmellos (Natterer). 
In addition to the types (in the Vienna Museum) I have examined four 
adults obtained by Comte de Castelnau at Sarayacu and near Pebas, Eastern 
Pero, in the Paris Museum; a couple from the Upper Ucayali (Bartlett), and 
one adult female from Teffé (Hoffmanns), in the Tring Museum. All have a 
conspicuous blackish loral stripe. S. frenata Snethl.§ is therefore a synonym of 
S. mustelina. | 
167. Synallaxis rutilans amazonica Hellm. 
Synallaxis rutilans amazonica Hellmayr, Nov. Zool. xiv. p. 14 (1 907.--Itaittiba, Tapajéz River) ; 
idem, Jc. p. 52 (Teffé) ; Snethlage Journ. f- Orn. 1908. p. 506 (Bella Vista, right bank of the 
Tapajéz). 
Nos. 6, 33. ¢ ad., d imm., Calama, 8, 13. vi. 1907.—Wing 62, 61; tail 70, 
65 ; bill 12, 13 mm. 
* 9 from Cayenne, 1 § ad. Bartica Grove, Brit. Guiana, 3d 3 Kwata, Surinam, 3d ? Itaitaba, Tapaj6z, 
1 ¢ } Teffé, Amazons,1 g,2 ? ? Caura, 2 ad, from Bogota, ¢ ? Para, ete. 
+ Sitzungsber. Akad. Wiss. Wien (math.-naturwiss. Cl.) xx. 1. p. 160 (1856.—W. Mattogrosso : Cuyabé 
Villa Maria, Engenho do Gama ; cf. Pelzeln, Orn. Bras. i. 1867. p. 37). 
t Revist. Mus. Paul. vi. p. 435. 
§ Journ. f. Orn. 1906. p. 523 (Santarem). 
