( 393 ) 
333. Malacoptila rufa (Spix). 
Bueco rufus Spix, Av. Bras, i. p. 52. pl. xl. fig. 1 (1824.—“in sylvis fl. Amazonum ”), 
Malacoptila rufa Hellmayr, /.c. p. 400 (Humaytha). 
Nos. 565,564. of  ad., Jamarysinho, 16. ix. 1907.—Wing 91, 92; tail 69, 67; 
bill 24, 26 mm. 
Nos. 797, 798, 801. d imm., ? , Allianca, 22, 23. xi. 1907.—Wing 91—93; 
tail 66—70 ; bill 24—27 mm. 
No. 893. ? ad., Marnins, 31. v. 1908.—Wing 93; tail 65; bill 25 mm. 
“Tris red or reddish brown, feet grey or greyish brown, bill black, base of 
lower mandible yellowish.” 
The specimens are identical with the type in the Munich Museum. J. rufa 
ranges all over Amazonia from Eastern Peru to Para. 
(334. Monasa morphozus peruana Scl. 
[ Bueco morphoeus Hahn, Végel aus Asien, etc. Lief. xiv. pl. 2 (1823.—‘ Brasilien ”’).] 
Monasa peruana Sclater, Proc. Zool, Soc, Lond. xxiii. 1855, p. 194 (Jan. 1856.—in Peruvia 
orientali in regionibus fl. Amazonum superioris: Chamicurros [Hauxwell]). 
Monasa leucops Pelzeln, l.c. p. 22 (part.: Borba; Rio I¢anna). 
Right bank: Borba (Natterer). 
The three females obtained by Natterer at Borba, as well as another from 
the Rio Icanna (upper Rio Negro), in the Vienna Museum, are, in every respect, 
similar to examples from the Rio Napo, East Ecuador, in the Munich Museum. 
The series differs from M. m. morphoeus, of East Brazil (Rio de Janeiro to 
Para), in smaller white chin-spot, lesser amount of white about the forehead, and 
generally smaller size (wing 122—127, tail 116—122 mm).} 
335, Monasa nigrifrons (Spix). 
Bucco nigrifrons Spix, Av. Bras. i. p. 53. pl. xli. fig. 2 (1824.— in sylvis flum. Solimoéns oh 
Monasa nigrifrons Pelzeln, l.c. p. 22 (Borba). 
No. 219. ¢ ad., Calama, 13, vii. 1907. “Iris reddish brown, feet black, bill 
clear red.”—Wing 123 ; tail 115; bill 33 mm. 
Identical with the type. Specimens from Eastern Ecuador (Rio Napo) are 
rather darker, more of a blackish grey, though not always so. 
(336. Nonnula rubecula cineracea Scl. 
[Bucco rubecula Spix, Av. Bras. i. p. 51. pl. xxxix. fig. 1 (1824.—“ prope pagum Malhada, fluminis 
St. Francisci proximum,” Southern Bahia, E. Brazil).] 
Nonmula cineracea Sclater, Proc. Zool. Soc. Lond. 1881. p. 778 (1881.—Rio Javarri). : 
Monasa rubecula (nee Spix) Pelzeln, /.c. p. 23 (part.: Borba, Rio Madeira ; Marabitanas and Rio 
Iganna, upper Rio Negro). 
Right bank: Borba (Natterer). : 
Dr. Lorenz having kindly forwarded to me the whole of Natterer’s series, 
T am enabled to state that the Amazonian specimens obtained by this celebrated 
naturalist belong to the pale race described by Dr. Sclater from a single example 
in the British Museum. An adult female from Borba, June 9, 1830, in the 
Vienna Museum, agrees with the type in all essential particulars, except that 
the bill is not quite so long, and the back slightly more tinged with brownish. 
Both differ from a good series of NV. r. rubecula (from Bahia, 8. Paulo, Goyaz, and 
Paraguay) by lacking the whitish patch below the eye (the cheeks and ear-coverts 
