5. HETEROTETRAX. 297 



coverts ; primary-eovprts and quills blackish at the enrls and tawny 

 at the l)ases, the primaries being of the latter colour for the greater 

 part of their length, the outer secondaries tawny at the bases and 

 crossed with black bars, the inner ones having the tawny bases 

 mottled with black ; innermost secondaries like the back ; tail- 

 feathers ash}', tinged with sandy buff like the upper tail-coverts, 

 and somewhat freckled with blackish, crossed by a narrow bar of 

 black some little distance from the end of the tail ; crown of head, 

 occijjut, and nape ashy, freckled with tiny blackish vermiculations, 

 as also the sides of the face and ear-coverts ; on the nape a con- 

 cealed spot of black feathers ; chin greyish white, this colour 

 skirting the throat ; centre of throat black, forming a triangular 

 patch which extends in a narrow line down the lower throat ; sides 

 of neck, fore neck, and under surface of body, including the flanks, 

 ashy brown, very finelj- vermiculated with blackish lines ; centre of 

 breast and abdomen uniform creamy white ; under tail-coverts like 

 the flanks and vermiculated in the same manner ; under wing- 

 coverts for the most part creamy buff like the quill-lining, the 

 small coverts round the edge of the wing ashy with blackish vermi- 

 culations ; the axillaries resembling the flanks. Total length about 

 '20 inches, culmen 1'5, wing 12'5, tail O'G, tarsus 3"1. 

 Hab. South Africa. 



a, b. Ad. sk. South Africa. Sir A. Smith [C.]. 



(Types of species.) 

 c, d. Ad. sk. South Africa. Mi-s. Sterling [P.]. 



2. Heterotetrax rueppeUi. 



Otis rueppelli, Wahlh. J.f. O. 1857, p. 1 ; Finsch ^- Hartl. Tog. 



Ostnfr. p. 610, note (1870); Ileuffl. Om. h\0.-Afr. ii. pt. 1, 



p. 904, note (1873) ; Bovage, Om. Am/ola, p. 419, note (1881) ; 



S/iarjH-, ed. Lagnrd's B. S. Afr. p. 643 ("l8!^4). 

 Otis picturata, Haiti. P. Z. S. 1865, p. 88, pi. vi. (Benguela) ; Mont. 



t. c. p. 90; Fimch ^- Hurtl. Vog. Ostafr. p. 619, note (1870). 

 Eupodotis rueppelli, Grag, Iland-l. B. iii. p. 8, no. 9935 (1871); 



Gunieg in Anderss. B. Dam. Ld. p. 259 (1872: Gt. Namaqua and 



S. Dauiara). 

 Eupodotis picturata, Gray, Hand-l. B. iii. p. 8, no. 9925 (1871). 



Adult (type of 0. picturat(i). Similar to II. vir/orsi, but very 

 much paler and with a good deal of blue-grey on the head ; sides of 

 neck also blue-grey, divided by a broad line of black, which extends 

 on to the lore neck and joins the black patch on the centre of the 

 throat ; sides of the face for the most part white ; a large patch of 

 white on the cheeks extending backwards and joining below the 

 black patch, the latter being united to a narrow eyebrow ; ear- 

 coverts with a black patch ; under surface of body from the fore 

 neck downwards white, including the under wing-coverts and quill- 

 lining. Total length about 20 inches, culmen 1"G, wing I'Jo, 

 tail 53, tarsus 3'3. 



Hub. South-western Africa. 



