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Cruz, Ucayali (E. Bartlett coll.), both in the British Museum; ¢ ad., Teffé, Rio 
Solimoéns, ¢ ad., Humaytha, Rio Madeira, left bank (W. Hoffmanns coll.), in 
Tring Museum; ? ad. Rio Jurud, W. Brazil (coll. E. Garbe), belonging to the 
Museu Paulista ; and three adults from the Rio Parts: ¢ Cachoeira, ¢ Bom 
Lugar, preserved in the Museu Goeldi at Para. 
This series fully corroborates what I said in Nov. Zool. xiv. 1907, p. 40. The 
upper parts are always lighter or darker ‘“ mummy-brown ” (Ridgw. t. iii. fig. 10) ; 
foreneck, breast, and sides “ wood-brown ” (Ridgw. t. iii. fig. 19) or earthy brown 
with a slight rufescent tinge ; the middle of the abdomen is largely white, the under 
tail-coverts white with dark brown bases. The axillaries and under wing-coverts 
are ochraceous buff, or wood-brown washed with pale ochraceous at the tips. 
Sometimes there is a narrow, ill-defined, buff edge along the inner web of the 
remiges, but in most specimens the latter is quite or nearly uniform greyish. 
The young bird (No. 467), when compared with 7. fumigatus in corresponding 
age, shows the distinctive characters even more strongly emphasized than the 
adults. In Nos. 708 and 82 some hairlike filaments are to be seen among the 
normal feathers of the nape. This particularity has also been noticed by 
Lichtenstein in the allied 7. fumigatus.* 
The female of 7. leucops Tacz. bears a striking likeness to T. hauxwelli, but, 
on closer examination, may easily be distinguished by the deep orange under wing- 
coverts, more regular and darker, blackish brown stripes of the throat, and 
especially by the different wing-formula, the third, fourth, and fifth primaries 
being longest, and the second eqnal to the sixth. In 7. hauxwelli, on the other 
hand, the fourth and fifth form the tip, the sixth is but from 2 to 3 mm. shorter, 
while the second falls between the seventh and eighth primaries. 
It is a curious fact that Mr. Hoffmanns should have met with 7. havxwelli 
in the Rio Madeira district, while Natterer, eighty years ago, obtained its ally, 
T. fumigatus, at nearly the same places (vide infra). 
T. hauxwelli has evidently a wide range in Amazonia. Unlike so many other 
Upper Amazonian types, it inhabits the left (Humaytha) as well as the right bank 
(S. Isabel, Calama) of the Rio Madeira. Farther to the west it was obtained by 
Garbe on the Rio Jurns, and by the expeditions of the Goeldi Museum on the 
Upper Parts. Hoffmanns sent a specimen from Teffé, Rio Solimoéns. In Peru 
several naturalists—E. Bartlett, Castelnan & Deville, Hauxwell, and Whitely— 
secured specimens on the banks of the Maraiion, at Iquitos, Pebas, Nauta, Samiria, 
etc. The first-named of these travellers a!so took an example near Santa Cruz, 
on the Ucayali, and Dr. Allen records two specimens from Reyes, on the Rio Beni, 
Northern Bolivia. 
[5. Turdus fumigatus fumigatus Licht. 
Turdus fumigatus Lichtenstein, Verz. Dubl, Berliner Mus. p. 38 (1823.—“ Brasilia”) ; Pelzeln, Zur 
Ornith, Bras, ii. 1868, p. 94 (Engenho do Gama, 8. Vicente, Borba). 
1, 3 ad., Borba, right bank of the Rio Madeira, June 21, 1830 (Natterer 
coll.).—Wing 112; tail 95; bill 20 mm. 
2. 2 ad., Borba, August 3, 1830 (Natterer coll.).—Wing 100; tail 90; bill 
18 mm, 
3. d imm., Engenho do Gama, Mattogrosso, September 1829 (Natterer coll.),— 
Wing 110; tail 90; bill 19 mm. 
* Verz. Dubl. Berliner Mus. 1823, p. 38, No. 438. 
