1870.] DR. O, FINSCH ON THE BIRDS OF TRINIDAD, 567 
the description of C. suflavescens, which seems not to be specifically 
separable. 
Of C. wiedii I have lately received specimens from Ceara, in 
Northern Brazil. 
Long. al. eaud. rostr. tars. 
on git gr oll 7 lo!" 
2599 Tipe | tz 10 
2 8 2 1 if 10 (wiedi, Brazil.) 
43. THAMNOPHILUS MAJOR, Vieill.; Scl. P. Z. S. 1858, p. 209 ; 
ej, Cat. p. 172; Taylor, 7. c. p. 85. 
Thamnophilus stagurus, Léot. p. 266. 
Thamnophilus borbe, Pelz. Orn. Bras. i. p. 140. 
An old bird. 
This and two specimens from Guiana agree rather with the cha- 
racters noticed to be differential by Von Pelzelu in 7. bord@ than 
with the true 7’. major, Vieill., of Paraguay. But having before me 
a series of specimens from Brazil and Paraguay, I am not able to 
distinguish the two species exactly. It is true that specimens from 
the northern parts (Guiana) have apparently less white bars on 
the tail, which is shorter, but these characters are variable and not 
constant. 
The Paraguay one has the two outer tail-feathers, except the white 
apical margin, with five broad white marginal patches, which on the 
outermost runs on both webs, nearly forming cross bands; the pri- 
maries have a well-defined white margin on the outer web; on the 
upper wing-coverts are two white cross bands, besides a third formed 
by the white outer margins of the tectrices of the secondaries. The 
Brazilian bird is alike with respect to the markings of the tail-feathers; 
but the white margins on the primaries are much less defined, and 
nearly all the tectrices are tipped with white (as in Spix’s figure, 
t. 32. f.1). It is the same in an old Guiana specimen (Demerara); 
but this one wants the white margins on the primaries almost en- 
tirely, and the white markings on the tail-feathers are narrower and 
on the outermost feather do not run on both webs. The Trinidad bird 
agrees with the latter; but it has the two white cross bands on the 
tectrices and the white margins on the primaries as strongly marked 
as the Paraguay one. In a somewhat younger specimen from 
Guiana the white tips on the tectrices are almost entirely absent, as 
well as the white margins on the primaries, and the two outer tail- 
feathers have seven white spots on the inner web. Two specimens 
from Ceara, in North Brazil, just received, agree with the Paraguay 
one, but the white on the tail-feathers is more defined and extended, 
forming on the two outermost regular bars as broad as the black 
between, the fourth and fifth have six white marginal spots, and 
the two innermost, instead of being uniform as in the Paraguay and 
Guiana birds, have five narrow white marginal spots on both webs, 
besides a white apical spot. 
