SAA оо ia аа Lisa di Лы vis. MEC 
werd ci ALPINE en a i b Š 
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traceable or is absent altogether, and, as far as I can see, is only visible in winter plumage. Still 
sign of affinity with Turdus leucomelas, though the general aspect 
its occasional presence is another 
The streaks on the throat are more defined than in 
of the bird is very like that of 7. ignobilis. 
T. ignobilis, but are never so distinct as in 7. leucomelas. 
I have examined the following specimens, which I believe to be referable to T. maculirostris :— 
ECUADOR. 
a. Ad. hiem. Rio Napo (Jameson : Jardine Coll.). Seebohm Coll. 
b, c. Ad. sestiv. Balzar Mountains (Illingworth). Salvin-Godman Coll. 
Salvin-Godman Coll. 
d, e. Ad. hiem. . 
f. d ad. hiem. 
Sarayacu (C. Buckley). 
Pallatanga (L. Fraser). 
Sclater Coll. 
Eyton Coll. 
g. Ad. hiem. Pallatanga (L. Fraser). 
h. d ad. hiem. Zamora (L. Fraser). Sclater Coll. 
i. Juv. Е Santa Rita (Villagomez). Salvin-Godman Coll. 
PERU. 
Salvin-Godman Coll. 
k. 9 juv. hiem. Guayabamba, 3800 feet, Aug. 23, 1894 (O. T. Baron). 
: Sclater Coll. 
1. 9 ad. Меш. Chirimoto, Sept. 1880 (J. Stolzmann). 
UPPER AMAZONIA. 
E. Bartlett [C.]. 
m. © ad. hiem. Lower Ucayali. 
n. 9 ad. hiem. Xeberos, June 14, 1866. E. Bartlett [C.]. 
o. 3 ad. hiem. ^ — Yquitos, Oct. 24, 1878 (Н. Whitely). Seebohm Coll. 
BoLIvIA. 
p. Ad. «зіу. Марігі (C. Buckley). Salvin-Godman Coll. 
q. Juv. Baganti (C. Buckley). Salvin-Godman Coll. 
T. maculirostris may therefore be described as a small dark race of T. leucomelas, having a 
yellow bill, but distinguished by its paler ashy-brown breast and flanks and by the feebly indicated 
dusky streaks on the throat. Total length 8:5 inches, culmen 0:9, wing 4:35, tail 8:2, tarsus 1:25. 
Adults and young birds in winter plumage have a blackish bill, and may be distinguished from 
the corresponding plumages of 77. leucomelas by the darker olive-brown of the upper surface, as well 
as by the darker brown colour of the breast and flanks. The streaks on the throat are also much 
less pronounced than in 7. leucomelas. А female measures — Total length 8:5 inches, culmen 0:8, 
wing 4:2, tail 3:2, tarsus 1:15. ў 
There is not so much difference in size between T. maculirostris and Т. leucomelas as would 
appear from the generally smaller appearance of the former species. 
7. leucomelas has the wing varying from 4:8 to 4:85 inches, and there does not seem to be any 
marked differences in the sexes, though the male is slightly the larger. 
In T. maculirostris the males have the wing from 4:9 to 4:5 inches, and the females from 4:15 to 
(в. В. S.J 
4:9 inches. 
