( 344 ) 
No. 1071. 9 ad., Calama, 10. ix. 1908. “Iris brown.”—Wing 72; tail 63; 
bill 17 mm. 
No. 1049. ¢ ad., Maruins, Machados, 22. vii. 1908. “Iris brown.”—Wing 70 ; 
tail 61; bill 16 mm. 
The males agree in every way with those from Teffé and Humaytha. All have 
the under wing-coverts and the quill-lining broadly white; in none is there any 
white at the base of the interscapular feathers. The female differs slightly from 
Venezuelan specimens of 7. c. glaucus by having the throat rather browner and 
mixed with deep buff, and the under mandible brown instead of whitish. Breast 
and abdomen, too, are a shade deeper ferruginous. Like 7. c. glaucus, it has a 
large concealed white dorsal patch. 
I have examined the ‘specimens from Salto do Girao (Mus. Vindob.) and Rio 
Jurud (Mus. Paulista)—in both cases males only were obtained—and found them 
to belong to persimilis. Miss Snethlage informs me (én Jit.) that the bird recorded 
sn. Tc. hoffmannsi (vide supra) likewise turns out to be persimilis. 
The range of T. c. persimilis is therefore as follows : 
North Brazil : Teffé, Rio Solimdes (Hoffmanns); Rio Madeira: Salto do Girao 
(Natterer), Humaytha, Calama, Maruins, Rio Machados (Hoffmanns); Rio Jurua 
(Garbe); R. Tapajéz, left bank: Itaittiba (Hoffmanns), Villa Braga (Snethlage) ; 
right bank: Bella Vista (Snethlage); Arumatheua, left bank of the R. Tocantins 
(Snethlage).* 
) 210. Pygiptila margaritata (Scl.). 
Myrmeciza margaritata Sclater, Proc. Zool. Soc, Lond. xxii. 1854. p. 253. pl. lxxi. (April 1855.— 
Chamicuros, Eastern Peru), 
Nos. 96, 248, 328. $d ad., o vix ad., Calama, 23. vi., 22. vii., 2. viii. 1907.— 
Wing 73, 70; tail 48, 49; bill 16—174 mm. “Iris dirty white, feet light 
plumbeons, bill black, below greyish blue.” 
Nos. 97, 345, 362, 368. 29%, Calama, 23. vi, 7, 10, 11. viii. 1907.—Wing 
67—69 ; tail 45—47 ; bill 163-174 mm. “ Iris dirty white, feet light plumbeous, 
bill black, below grey.” 
The specimens differ from topotypical Peruvian examples by their rather 
shorter, broader bill. The males have, too, the under wing-coverts uniform dark 
grey, not mixed with white, and the females are decidedly paler rnfescent brown 
on the back. These trifling differences are, however, not likely to be constant. 
P. margaritata is for the first time recorded from the Madeira district. 
Previously it was only known from Eastern Peru, where Bartlett and Hauxwell 
had obtained specimens at Xeberos and Chamicuros, and from Marabitanas, on the 
upper Rio Negro, whence Natterer sent a series to the Vienna Museum. 
211. Pygiptila stellaris (Spix). 
Thamnophilus stellaris Spix, Av. Bras, ii, p. 27, pl. xxxvi. fig. 2, deser. orig. ¢ (1825.—Pard), _ 
T. maculipennis Sclater, Edin. New Philos. Journ. (new ser.) i. p. 247 (1855.—* Quixos in Cisandean 
Ecuador and Peruvian Amazons wk 
Pygiptila maculipennis Pelzeln, Zur Orn. Bras. ii. p. 79 (Salto do Girao, Borba). 
Nos. 359, 372. dd vix ad., Calama, 9, 11. viii, 1907.—Wing 79, 76; tail 
394, 41; bill 183, 21 mm. 
Nos. 93, 213, 360, 371, 419. 2? ad. et imm., Calama, 22. vi., 12. vii., 9, 11, 
18.. viii. 1907.—Wing 74—76 ; tail 38 —40; bill 19—203 mm. 
_* Specimens from the Upper Purds are, however, referable to a new form, related to 7’. c. glawcus Cab. 
