( 279.) 
(La Merced, Chanchamayo ; Kalinowski leg.) by its much smaller size, shorter as 
well as deeper bill, and by having the sides slightly more brownish grey, less 
purely cinereous. From WN, s. sordida the Maruins bird may be distinguished by 
the dull brownish grey (instead of deep buff or ochraceons buff) sides and flanks, 
white (not deep buff) under tail-coverts, more olive-grey (less greenish) upper 
parts, etc. 
Additional material is required to establish the status of the Madeira form. 
62, Arremon silens (Bodd.). 
Tanagra silens Boddaert, Tabl. Pl. enl. p. 46 (1783.—ex D’Aubenton, Pl. enl. 742 : Cayenne). 
No. 790. ¢ juv., Allianca, 16. xi. 1907.—Wing 72; tail 59 ; bill 13 mm. 
No. 579. ? ad., Jamarysinho, 21. ix. 1907.—Wing 71; tail 56 ; bill 134 mm. 
“Tris brown, feet yellowish grey (light grey), bill black.” 
Agreeing, in size and coloration, with Pard examples. 
63. Saltator maximus (P. L. 8. Miill.). 
Tanagra maxima P.L. 8. Miller, Natursyst. Suppl. p. 159 (1776.—ex D’Aubenton, Pl. enl. 205: 
Cayenne). 
Saltator magnus auct, 
No. 707. ? ad., S. Isabel, Rio Preto, 16. x. 1907. 
“ Tris brown, feet grey, bill black.” 
; 64. Saltator coerulescens azarae D’Orb. = 
[Saltator coerulescens Vieillot, Nouv. Dict. xiv. p. 105 (1817.—ex Azara, no. 81: Paraguay). } 
Saltator Azarae D’Orbigny, Voyage Amér. mérid., Oiseaux, p. 287 (betw. 1838 and 1847, part. : 
Moxos, Eastern Bolivia ; cf. Hellmayr, Nov. Zool. xiii. 1906. pp. 314-5); Pelzeln, Zur Orn. 
Bras. iii. 1869, p. 219 (part. : Borba). 
No. 1071. ? ad., Calama, 10, ix. 1908. “ Iris brown, feet grey, bill black.”— 
Wing 99; tail 88; bill 184 mm. 
Agrees with Peruvian specimens. The upper parts and sides of the head are 
very dark slate-grey, the outer webs of the remiges scarcely paler; the foreneck 
and breast dingy cinereous, passing into buff in the middle of the abdomen; the 
lower tail-coverts deep ochraceous. 
S. c. azarae inhabits North-Eastern Bolivia (Moxos), Brazilian Amazonia 
from the Madeira Valley westwards, Pern, Eastern Ecuador, etc. Farther to the 
south, on the Rio Guaporé (Villa Bella de Mattogrosso), etc., the typical race, 
S. c. coerulescens, is met with ; while in North-Eastern Brazil (Marajé, Mexiana, 
Amapa) another close ally, S. c. mutus Scl., takes its place. . Cf. Nov. Zool. xiii, 
pp. 314-15. 
[65. Schistochlamys atra (Gm.). 
Cf. Nov. Zool. xiv. p. 353 (Humaytha), 
Left bank : Humaytha (Hoffmanns). 
Widely distributed in South America. ] 
66. Pitylus grossus (Linn.). 
Loxia grossa Linnaeus, Syst. Nat, xii. 1. p. 307 (1766.—“ America”: ex Brisson ; we substitute 
Cayenne as type locality). 
Pitylus grossus Pelzeln, J.c. p. 220 (Borba). 
Nos. 75, 337. dd ad., Calama, 19. vi., 5. viii. 1907. “Iris brownish, feet 
black, bill bright red.” —Wing 98, 96 ; tail 90 mm, 
