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278. Chlorestes notatus (Reich). 
Trochilus notatus Reich, Magazin des Thierreichs (Erlangen) 1. iii. p. 129 (1795.—based on Richard 
& Bernard, Cat. Ois. env. de Cayenne par M. le Blond in Act, Soc. Hist. Nat, Paris 1. i, 1792. 
p. 117. No. 48 ; Cayenne), 
Hylocharis coerulea Pelzeln, lc. p. 33 (Borba). 
Chlorestes caeruleus Hellmayr, l.c. p. 396 (Humaytha). 
Nos. 686, 701. 33 ad., Sz Isabel, 16. x., 12. x, 1907,—Wing 49—50; tail 31; 
bill 16, 17 mm. ; 
Nos. 665, 666, 672, 699, 702. 3d juv., 2%, 8. Isabel, 10, 11, 15, 16. x. 1907. 
Nos. 817, 818, 845, 868. 3o ad., Marmellos, 16, 17, 21, 25. xii. 1907—Wing 
49—50 ; tail 29—30 mm, 
Nos. 815, 823. 3 jav., 2, Marmellos, 16, 18. xii. 1908. 
“Tris and feet black, bill black, below red or greyish red.” 
279. Thalurania balzani E. Sim. 
Thalurania balzani E, Simon, Nov, Zool. iii. p. 259 (1896.—“ Yungas de Bolivie ”); Hellmayr, Jc. 
xiv. 1907. p. 396 (Borba) ; Snethlage, Journ. f. Ornith. 1908, p- 514 (Campinho, Villa Braga : 
left bank of Tapajéz), : 
T. furcata furcatoides (nec Gould) Hellmayr, Nov. Zool. xiv. 1907. p. 24 (Itaittiba, left bank of 
Tapajéz). : 
No. 107. 3 perad., Calama, 25. vi. 1907.—Wing 52; tail 32; bill 193 mm. 
Nos. 131, 138, 459, 471, 472. 2 fere ad. et imm., Calama, 29, 30. vi., 26, 27. 
vill. 1907.—Wing 51—53; tail 31—32 ; bill 18—20 mm. 
Nos. 650, 674, 698. 3 vix ad., oo imm., 8. Isabel, Rio Preto, 9, 11, 15. x. 
1907.—Wing 50—53 ; tail 31 —32; bill 20 mm. 
No. 450. ¢ juv., Calama, 26. viii. 1907.—Wing 54; tail 31; bill 164 mm. 
No. 931. ¢ ad., Maruins, R. Machados, 14. vi. 1908.—Wing 53; tail 32; 
bill 204 mm, 
. _ Nos. 15, 692. 22 ad., Calama, S. Isabel, 10, vi., 13. x. 1907.—Wing 49, 51; 
tail 28; bill 19, 20 mm. 
Nos. 916, 957. 29 ad., Marnins, 9, 26. vi. 1908.—Wing 49, 50; tail 29, 30; 
bill 20 mm. 
No. 808. ? ad., Allianca, 30. xi, 1907.—Wing 49; tail 28}; bill 19 mm. 
“Tris, bill, and feet black.” 
Identical with specimens from Eastern Bolivia (Beni River). The males have 
the under tail-coverts pure white, and in fully adult birds the interscapular region 
when viewed from in front looks very dark, almost blackish. The form found on 
the left bank of the Rio Tapajéz is likewise T. balzani, The females taken at 
Itaittiba by Mr. Hoffmanns were erroneously determined as 7. f. furcatoides, but 
Miss Snethlage has lately obtained, in the same region, an adult male. 7. sémoni 
Hellm., from Teffé, Rio Solimoéns, while agreeing with 7. dalzani in the small 
size, in the dark coloration of the interscapulium, ete., differs at a glance by having 
the under tail-coverts steel-black with white edges. Cf. Nov. Zool. xiv. 1907. 
pp. 77-8. 
The range of 7. balzani is as follows :-— 
Eastern Bolivia : Salinas, Reyes (Maxwell Stuart ; Tring Museum). Central 
Brazil, Amazonia: Jalama, S. Isabel, Borba, Allianca, Rio Madeira; Maruins, 
Rio Machados (Hoffmanns) ; Itaittiba (Hoffmanns), Campinho, Villa Braga (Sneth- 
lage), left bank of Rio Tapajoéz, 
