( 302 ) 
In the Vienna Museum there are, besides a large suite from South-Eastern 
Brazil, an immature male from Borba (March 3, 1830) and an adult male from 
Marabitanas, Rio Negro (April 4, 1831). These three skins agree, in colour and 
size, with topotypes from Cayenne. Birds from Southern Brazil (Bahia, Rio, Sao 
Paulo, Parana) are somewhat lighter above, especially the cap paler and less sooty, 
and the bill is, as a role, horn-colour instead of black. They are entitled to the 
name M. ferox cantans Pelz.* 
126. Myiarchus tuberculifer tuberculifer (Lafr. & D’Orb.). 
Tyrannus tuberculifer Lafresnaye & D’Orbigny, Syn. Av. i. in May. Zool. el. ii. p. 43 (1837,— 
Guarayos, Eastern Bolivia); cf. Hellmayr, Nov, Zool, xiii. 1906. pp, 323-4 (crit.). 
No. —. 6 vix ad., Marmellos, 24. xii. 1907. “Iris greyish brown, feet and 
bill black.”—Wing 75; tail 72; bill 17 mm. ; 
In addition, I have examined in the Vienna Museum an adult male obtained 
by Natterer at Borba, March 1, 1830, which had been overlooked by Pelzeln in his 
report. Both represent typical tuberculifer as defined by me (l.c.). 
127, Tyrannus melancholicus melancholicus Vieill. 
Tyrannus melancholicus Vieillot, Nouv. Dict, xxxv. p. 84 (1819.—ex Azara: Paraguay). 
No. 525. Av. jr., Calama, 7. ix. 1907. “Iris brown, feet and bill black.” 
128. Muscivora tyrannus (Linn.). 
Muscicapa Tyrannus Linnaeus, Syst. Nat. xii, 1. p. 325 (1766.—ex Brisson: “Canada (errore !) et 
Cayenna”’), 
_ Musczivora tyrannus Hellmayr, Nov. Zool. xiv. p. 358 (Humaytha). 
No. 440. ¢ ad., Calama, 22. viii. 1907. 
Nos. 435, 436. 29? ad., Calama, 20. viii. 1907, “ Iris brown, feet and bill 
black.” 
(129. Piprites chloris chlorion (Cab.). 
[Pipra chloris Temminck, PI. col. 172. fig. 2 (1822. —Brésil, se. Ypanema, S. Paulo).] 
Hemipipo chlorion Cabanis, Arch, Naturg. 13. i. p. 234 (1847.—Cayenne), 
Piprites chlorion Pelzeln, Zur Orn. Bras. ii. p. 126 (part, : Borba, Salto Girao ; Engenho do Gama, 
Rio Guaporé), 
An adult male from Borba, obtained by Natterer in August 1830, belonging to 
the Vienna Museum, agrees with a male from Quonja, Brit. Guiana, October 12, 
1887 (H. Whitely coll., Mus. H. v. Berlepsch), in the coloration of the lower parts : 
throat and under tail-coverts clear yellow, breast pale cinereous, middle of the 
abdomen very pale yellowish ; but it has the grey of the nape slightly mixed with 
olive-green, and the rectrices more conspicuously tipped with yellowish white, A 
female from Cussary, a village on the south bank of the Amazons opposite Monte 
Alegre, is exactly like the one from Borba except in having the nape olive-green 
like pileum and back, without any grey. Its very dark, nearly blackish, bill seems 
to be a sign of immaturity. 
The two males from Salto Girao, farther up the Rio Madeira, and Engenho do 
Gama, on the Rio Gnuaporé, in the Vienna Museum, have the cinereous breast 
distinctly washed with pale yellow, the abdomen brighter yellow, and the bill 
* Myiarchus cantans Pelzeln, 1.c, pp. 117, 182 (1868.—Rio de Janeiro, Ypanema, Curitiba) 
