( 422 ) 
* 
[439. Creciscus viridis viridis (P. L. S. Miill.). 
Railus viridis P. L. S. Miiller, Natursyst. Suppl. p. 120 (1776.—ex D’Aubenton, Pl. enl. 368: 
Cayenne). 
Creciscus v. viridis Hellmayr, Nov. Zool. xiv. p. 412 (Humaytha), 
Left bank: Humaytha (Hoffmanns). Natterer obtained it at the sugar-mill 
of Captain Gama, on the Rio Guaporé, as well as near Para.*] 
440. Heliornis fulica (Bodd.). 
Colymbus fulica Boddaert, Tabl. Pl. enl. p. 54 (1783.—ex D’Aubenton, Pl. enl. 893: Cayenne). 
No. — . dad. 8. Isabel, Rio Preto (no date). “Iris brown, feet black and 
white, bill black, lower mandible grey.” —Wing 140; tail 95; bill 30 mm. 
441. Kurypyga helias (Pall.). 
Ardea Helias Pallas, Neue Nord. Beytr. ii. p. 48. pl. iii. (1781.—“ Brasilien ”). 
No. 550. 2 ad., Jamarysinho, 14. ix, 1907.—Wing 211; tail 160; bill 50 mm. 
No. 1036. 3 ad., Maruins, Rio Machados, 19. vii. 1908—Wing 218; tail 160; 
bill 54 mm. 
“Tris yellow or pale red, feet greyish brown, bill black, below yellow.” 
Similar to Guianan and Venezuelan specimens. 
[442. Psophia leucoptera Spix. 
Psophia leucoptera Spix, Av. Bras. ii, p. 67. pl. Ixxxiv. (1825.—“in sylvis campestribus fl. Rio 
Negro”—errore! We substitute left bank of Rio Madeira) ; Pelzeln, /.c. p. 299 (Cachoeira 
das Pederneiras) ; Hellmayr, Nov. Zool. xiv. p. 412 (Humaytha), 
Left bank of the Rio Madeira: Pederneiras (Natterer), Haumaytha (Hoffmanns). 
Ranges to Bolivia and Peru. On the right side of the Madeira it is replaced by 
the next species. ] 
443. Psophia viridis Spix. 
Psophia viridis Spix, Av. Bras, ii. p. 66, tab. Ixxxiii. (1825.—Villa Nova on the Amazons hee 
Nos. 996, 997. $3 ad., Maruins, 11, 14. vii. 1908. “Iris brown, feet greenish 
yellow, bill green or greyish green.” — Wing 273, 280; tail 125, 130; bill 37 mm. 
Nos. 974, 999. oo imm,, Maruins, 6, 11. vii. 1908. “ Iris brown, feet 
greenish yellow, bill green or greyish green.” —Wing 255, 280; tail 130; bill 
34, 384 mm. 
Nos. 988, 998. @ ad., 2 imm., Maruins, 9, 11. vii, 1908. “ Iris brown, feet 
greenish yellow or greyish, bill greyish green.”—Wing 275, 265; tail 125, 110 ; 
bill 36 mm. 
These specimens agree with Spix’s type in the Munich Museum. The series 
presents some variation in the colour of the mantle and inner secondaries. Some- 
times these parts are chiefly dark brown with but little admixture of green, while 
in other specimens the green is predominating. This variation appears to be purely 
individual, for it does not depend on age or sex. 
* Porzana cayanensis Pelzeln, Zur Orn. Bras. iii, p. 316.—Other 
likely to occur on the Rio Madeira are; 
Thyrorhina schomburghi (Cab.), etc., all of w 
Guaporé, 
species of the family Rallidae 
Amaurolimnas concolor (Gosse), Neocrex erythrops (Scl.), 
hich were obtained by Natterer on the banks of the Rio 
