310 oTiDro^. 



p. 543 (Machako's) ; Emin,J.f. 0. 1891, p. 58 (Steppes of Ugogo) ; 

 Heichen. t. c. p. 142 (Nianguira). 

 Otis senegalensis (nee V.). Salvad. Ann. Mus. Genov. (2) i. p. 258 

 (1884). 



Adult. Similar to T. ccerulescens, but having the under surface of 

 the body white ; the long under taU-coverts sandy buff, barred with 

 blackish and minutely freckled with sandy buff: " bill horny whitish, 

 the tips of both mandibles horn-brown, flesh-coloured at the base ; 

 iris pale yellow " (G. A. Fischer). Total length 22 inches, 

 culmen 1-65, wing 12-5, tail 5-2, tarsus 4'3. 



Hab. From Shoa in N.E. Africa to Masai-land. 



(i,b. c? 2 ad. sk. Efat, Shoa, April {Sir W. C. India Museiun. 



Harris). 



3. Trachelotis senegalensis *. 



Otis senegalensis, Vieill. Enc. M&th. i. p. 333 (1819) ; Heugl. Orn. 



N. O.-Afr. ii. pt. i. p. 959 (1873 : S. Senaar ; Fazogl ; S. Kordofan) ; 



Antin. ^ Salvad. Viagg. Bogos, p. 140 (1873). 

 Otis rhaad, Rilpp. Mus. Senckenb. ii. p. 230, Taf. 15 (1837) ; StricM. 



P. Z. S. 1850, p. 220 (Kordofan). 

 Eupodotis senegalensis. Gray, Gen. B. iii. p. 533 (1845, pt.) ; Hartl. 



Orn. W.-Afr. p. 206 (1857 : Casamance) ; Graij,Hand-l.B. i. p 8, 



no. 9924 (1871). 

 Lissotis senegalensis, Reichenb. Handb., Gall. tab. ccliii. fig. 2164 



(1848). 

 Trachelotis rhaad, Bp. C. B. xliii. p. 416 (1856). 

 Chlamydotis senegalensis, LicM. Nomencl. p. 88 (1854). 

 Lissotis semitorquata, Hetigl. Syst. Uebers. p. 53 (1856 : Steppes of 



Schiluk coimtry, and on the Bahr El Abiad). 



Adult (type of species). General colour above sandy rufous, 

 obscured with coarse mottlings of brown on the back and scapulars, 

 and with finer dusky vermiculations on the hind neck and upper 

 mantle ; all the wing-coverts pale sandy rufous, the greater coverts 

 and bastard-wing feathers broadly tipped with black ; primary- 

 coverts and quills black, the former with sandy-rufous bases to the 

 feathers ; the primaries white or pale tawny on the inner webs, this 

 increasing largely towards the inner primaries, but not so developed 

 on the secondaries, which appear almost entirely black, the innermost 



* Otis rhaad. 

 The Rhaad or Saf-saf, Shaw, Trav. # Obs. Barbara/, pi. ii. p. 252, fig. 2 



(1738). 

 Le Rhaad, Buff. Hist. Nat. Ois. ii. p. 61 (1771). 

 Rhaad Bustard. Lath. Gen. Syoi. ii. pt, 2, p. 855 (1783). 

 Otis rhaad. Lath. Ind. Orn. ii. p. 660. 



The old writer Shaw figures the " Houbara" very distinctly, and his " Rhaad " 

 has generally been referred to Otis senegalensis. This, however, is by no means 

 clear, and I think the species intended by Shaw is just as likely to have been 

 Ckoriotis arabs. 



