501 
On the Ibises of the Genus Theristicus. 
39. Rallus calrulescens Gin.; Sharpe, Cat. B. Brit. 
Mus. xxiii. p. 25 (1894). 
a } $ ad. N’gong, Masailand, Nov. 30, 1898. 
40. Crex crex (Linn.); Sharpe, Cat. B. Brit. Mus. xxiii. 
p. 82 (1894). 
a, $ imm. Nairobi, Masailand, June 2, 1899. 
I have seen occasional specimens of this species in No¬ 
vember and April. 
41. Tympanistria tympanistria (Temm.); Salvad. Cat. 
B. Brit. Mus. xxi. p. 504 (1893). 
No. 143, ? . N'gong, Dec. 29, 1898. 
[The presence of some rufous secondaries, mottled with 
black vermiculations, indicates that the specimen is imma¬ 
ture, and the forehead and chest are grey, with ochreous 
margins to the feathers of the latter part.—R. B. S.] 
42. Francolinus hildebrandti Cab.; Sharpe, Ibis, 1892, 
p. 552. 
a, $ ad. N'gong, Masailand, Nov. 30, 1898. 
This Francolin is of much wider distribution than 
F. schuetti, and, along with Pternistes infuscatus , may be 
found both on the bare plains and in dense forest. 
43. Francolinus schuetti Cab.; Ogilvie Grant, Cat. B. 
Brit. Mus. xxii. p. 170 (1893). 
a , ? ad. N'gong, Masailand, Oct. 2, 1898. 
Nesting. Bill and feet coral-red. Very common in jungle 
and in the farms adjacent to forest. I have never seen this 
species on the open bare plains. 
XXIX.— On the Ibises of the Genus Theristicus. 
By T. Salvadori, F.M.Z.S. 
[Plates IX. & X.] 
When Signor Festa and I were working together at the 
great Ecuadorian collection made by the former, we easily 
recognized that the specimens of the genus Theristicus 
collected by Festa at Vallevicioso, not far from the paramos 
ser. vn.— vol. vi. 2 m 
