322 PRIONOPID-E. 



feather, this being entirely white, with the exception of the base of 

 the inner web, which is black ; head deep pearly grey, darker in 

 front of the eye, the frontal feathers whiter, and recurved over the 

 nostrils ; round the hind neck a white collar ; sides of face whitish 

 washed with grey, with a cresceutic ring of black behind the ear- 

 coverts ; entire under surface of body white, the chin mottled with 

 greyish tips to the feathers ; flanks greyish streaked with white ; 

 tmder wing-coverts black ; " bill black ; eye-wattle orange ; legs 

 flesh-colour; iris bright lemon-yellow'' (Andersson). Total length 

 7'8 inches, culmen O-So, wing 4-2o, tail 3*5, tarsus 0"95. 



Adult female. Exactly similar to the male. Total length 7"-4 

 inches, wing 4-25, taU 3-55, tarsus 0'9. 



Young. Similar to the adults but browner, especially on the 

 crown, which is ashy brown, deepening towards the nape, the 

 feathers of the hind nock edged with ashy brown. A specimen 

 with remains of nestling-plumage, shows that, as in the other species, 

 this is brown above, with whitish edgings to the feathers. 



Hab. South Africa. 



a. Ad. St. South Mrica, (Sir A. Smitli). S.Afi-ican Museum. 



(Type of species.) 



b. Ad. St. South Afi-ica. Sir A. Smith [C.]. 

 e. Ad. sk. South Africa (Sir A. Smith). Purchased. 



d,e. (S 2 ad. sk. Transvaal ( T. Ai/res). E. B. Sharpe, Esq. 



f,ff,h. Imm.sk. Tete, Zambesi. Dr. Kirk [C.l. 



t. Ad. St. Tete, Zambesi. Dr. Kirk [C.J. 



k. c? ad. sk. Ovaqueuyama, Damara Land, K. B. Sharpe, Esq. 



June 6, 1867 ( C. J. Andersson). 

 I. 2 ad. sk. Ovaquenyama, Mav 23, 1867 E. B. Sharpe, Esq. 



(C. J. A.). 

 wi.Juv.sk. Oodonsa, Ovampo Land, Jan. E. B. Shai-pe, Esq. 



22, 1867 (C. J. A.), 

 n, o. c? 2 ad. sk. Galuugo, Angola, Aug. 30 E. B. Shai-pe, Esq. 

 (Sala). (C/-. Sharpe, P. Z. 



S. 1870, p. 148.) 

 p. Ad. sk. Angola. J. J. Monteiro, Esq. 



[C.]. (Cf. Ibis, 

 1862, p. 327.) 



Type. 



19. SIGMODUS. 



Sigmodus, Finsch ^ HaHl. Vog. Ostafr. p. 364, 1870 (ex 



Bp.*) S. caniceps. 



Range. Confined to Africa. 



Keg to the Sjiecies. 



a. Back black, the head grey ; fi-ontal crest grey or 

 orange, not black like the crown. 

 a'. Frontal tuft whitish or whitish grey. 



a". Chin and ear-coverts pearly gi-ey ; abdomen 



deep tawny or chestnut rti/iventris, p. .323. 



* In none of the places where Prince Bonaparte mentions S. caniceps does 

 he give the characters of the genus ; the above-named authors are the first to 

 do so, as far as I can determine. 



