( 320 ) 
The adult males of the latter closely resemble S. v. vulpina, but, as a rule, 
there is more or less of brownish admixture in the fox-red of the nape, while the 
females differ at a glace in having the nape and back olive-brown like the ramp, 
the pileum alone being rufous. In addition to the two type-specimens from Forte 
do Rio Branco (Natterer coll., Vienna Museum) I have before me sixteen skins from 
the middle and upper Orinoco (Altagracia, Maipures, Caicara, Ciudad Bolivar ; 
Cherrie & Klages coll.), four from the Puris River,* and one from the Upper 
Sararé (Geay coll., Paris Museum). In contradiction to a former statement of mine,t 
I find that examples from North Peru (Nauta, Pebas) likewise belong to alopecias 
and not to vulpina. 8S. vulpeculat is, therefore, most probably synonymous with 
alopecias, yet a series from the Ucayali should be examined. 
169. Siptornis gutturata (Lafr. & D’Orb.). 
Anabates gutturatus Lifresnuaye & D’Orbigny, Syn. Av. IT. in May. Zool, cl. ii. p. 14 (1838. — 
Yuracares, N.E. Bolivia); cf. Ménégaux et Hellmiyr, Wém. Soc. d’Hist. Nat. Autun xix. 
1906, p. 76. 
Siptornis gutturata Hellmayr, Nov. Zool. xiv. 1907. p. 364 (Humpytha), 
No. 86. ¢ ad., Calama, 21. vi. 1907. ‘Iris dirty yellowish white, feet green, 
bill black, below grey.” —Wing 70 ; tail 64; bill 16 mm. 
There is no difference between the specimens from the Rio Madeira and others 
obtained on the Rio Negro (S. hyposticta Pelz.) and in Venezuela (Orinoco, Caura). 
[170. Ancistrops strigilatus (Spix). 
Thamnophilus strigilatus Spix, Av. Bras, ii, p. 26, pl. xxxvi. fig. 1 (1825.—Brazil) ; Pelzela, Zur 
Orn. Bras. ii. 1868. p. 78 (Borba). 
Rio Madeira: Borba (Natterer). Mr. Hoffmanns obtained a couple at Teffé, 
Rio Solimoéns,§ and Prof. Ihering received another from the Rio Jurua. || ] 
171. Automolus subulatus subulatus (Spix). 
Sphenura subulata Spix, Av. Bras. i. p. 82. pl. Ixxxiii. fig. 1. (1824.—“ in sylvis flum, Amazonum”), 
No. 196. ¢ ad., Calama, 9. vii. 1907. “Iris dark brown, feet grey, bill black, 
below grey.” —Wing 82; tail 69; bill 21} mm. 
This is the first record from the Rio Madeira, The bird agrees with Spix’s 
type in the Munich Museum, except in being much brighter underneath because the 
latter is extremely faded through exposure to light. The lower parts are clear 
buffy, the inner sides of the breast and the flanks slightly tinged with olive; the 
feathers of the foreneck show obsolete edges of dark olive. 
A. s. assimilis Berl. & Tacz.,{ of Western Ecuador, is easily distinguished by its 
darker, more reddish brown back ; much darker, chestnut-rafous colour of the rump, 
upper tail-coverts, and rectrices; by lacking the narrow buff shaft-lines on the 
* Snethlage, Journ. f. Orn. 1908. p. 13. 
¢ Mém. Soc. d@ Hist. Nat. Autun xix. 1906. p. 75. 
} Sclater & Salvin, P. ZS. 1866. p. 184 (Ucayali, East Peru). 
§ Nov. Zool, xiv, 1907. p. 54. 
|| Revist. Mus. Paul. vi, p. 436. 
‘ a assimilis Berlepsch & Taczanowski, Proc. Zool. Soc. Lond, 1883, p. 561 (Chimbo, Western 
cuador). 
