( ai8 ) 



No. 462. (J arl., Ciilama, '2(i. viii. 1907.— Wing 62 : tail 65 ; bill 1.") mm. 



No. 420. ? vi.x a.']., Calama, Island of Sta. Barbi, Is. viii. 1007.— Wiiij,' 601 ; 

 tail 64; bill 14i mm. 



No. 780. j imm., Alliaiica, 12. .xi. l'.)07.— Wing OlA ; tail 66 ; bill 14 mm. 



" Iris brown, feet grey, bill black, lower mandible jiale." 



Besides the above, 1 have examined the typical examples in the Vienna 

 Mnsenm (a conple from Borba, one from Salto do (Jirao). an adult female from 

 Hnmaytlia, and two males from the Rio I'nn'is (Monte Verde, Bora Lngar : I'ara 

 Mnsenm). The series ditfers from a very large number of skius of true 

 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 foreueck, chest, and sides are buft'y brown or pale earthy brown, 

 while the middle of the breast and abdomen is e.xtensively creamy white. Altiiough 

 single specimens are not always easily to be told, yet the difference is sufficiently 

 marked to jnstify the recognition of -S'. y. inornata. By the bright coloration of the 

 lower parts it slightly approaches 5. nlbilora Pelz.,t bnt the latter is distinguished 

 at a glance by the upper tail-coverts and tertials being cinnamon-rufous like the tail 

 (instead of earthy brown like the back). The back, too, is fulvous browu mi.xed 

 with cinnamon (instead of dull earthy brown), and the under surface is decidedly 

 deeper ochraceous. 



S. (J. inornata, as here defined, inhabits the tract of country between the 

 Madeira Valley (Borba, Calama, Hnmaytha, Salto do Girao) and the Upper Pnri'is. 

 I suspect, however, that the bird from the Rio Jurna identified as S. alhilora by 

 Prof. Ihering % will also prove to belong to it. 



[166. Synallaxis mustelina Scl. 



Si/iiallax/n iiiit.^lellnu (Natterer MS.) Sclater, Pmr. Zoul. Soc. Lund. 1874. p. 14 (1H74.— Rio Madeira). 

 S. cinnaiiKinieii (errore !) Pelzeln, Ziir 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 

 adnlts obtained by Curate de Castelnau at Sarayacu and near Pebas, Eastern 

 Pero, in the Paris Museum ; a conple from the Upper Ucayali (Bartlett), and 

 one adult female from Teffe (Hoffmanns), in the Tring Mnsenm. All have a 

 conspicuous blackish loral stripe. S. frcnata Snethl. § is therefore a synonym of 

 S. mustelina.'] 



167. Synallaxis rutilans amazonica Ilellm. 



fiiinalhi.i-is ratilam amazonica Hellmayr, Nov. Znol. xiv. p. 14 (IHOT.— Itaitiiba, Tapajriz River); 

 idem, /.<■. p. 52 (Teffe) ; Snethlage Juurn.f. Orii. 1908. p. 50lj (Bella A'ista, ri<;ht bank of the 

 Tapajoz). 



Nos. 6, 33. 6 ad., <? imm., Ualama, 8, 13. vi. l'.)07.— Wing 62, 61 ; tail 70, 

 65 ; bill 12, 13 mm. 



• SI from Cayenne, 1 ^ at\. IS.arlica Grove, llrit.(iuiari:i, ^ J Kwata, Surinam, ^ J Ilailiilw, Tapajuz, 

 1 (J 5 TcfEi, Amazons, 1 (J, 2 J } C'aura, 2 ad. from Iio{,'ota, g J I'ara, etc. 



f Sitzunrjsher. Aluid. Wist. ICtcpt (ma</(.-na<«rHv'.v<. C'/Oxx. 1. p. 1C0(1.S5«.— W. Mattogrosso : Cuyaba 

 Villa Maria, Engcnho do Gania ; cf. I'elzelii, Orn. Uran. i. lHt;7. p. 37). 



J Reriitt. Mux. Paul. vi. p. 43.'>. 



§ Journ.f. Orn. 1900. p. 523 (Santarem). 



