83 [Vol. xix. 



the feathers dark brown, and most of them with whitish 

 edges; uj3per tail-coverts pale rufous-cinnamon^ with whitish 

 edges and without dark brown middles. Eectrices blackish- 

 brown with white tips, the middle pair ashy grey edged with 

 buff. Underside pale isabelline, throat whitish. Wing 86 mm. 



Hab. Okahokahana, on the Etosha Saltpan in Southern 

 Ovampoland, German S.W. Africa. 



Type in the Tring Museum : adult, No. 2580. Okahoka- 

 hana, 35. vii. 1880: A. W. Eriksson coll. 



Obs. This is the palest form of the C. albofasciaia-grou]). 

 Of C. albnfasciata arenaria we have a specimen from Aris, 

 kindly compared with the type by Professor Reichenow, 

 and there are skins in the British Museum of this distinct 

 form from various localities in Great Namaqualand, collected 

 by C. J. Andersson. 



Certhilauda albofasciata obscurata, subsp. n. 



Adult male. Feathers of the back uniform deep brown, 

 almost black, with whitish margins (not rufous-brown with 

 dark brown middles). Upper tail-coverts rufous, the longer 

 ones with or without a longitudinal blackish mark towards the 

 tip ; pileum somewhat blacker than in C. a. albofasciata. 

 Rectrices dark brown, all except the middle pair having 

 white tips from 5 to 9 mm. in length and being narrowly 

 margined with grey. Remiges and undersurface as in 

 C. a. albofasciata, but with the chest more or less distiuctly 

 spotted with black. " Jris burnt-sienna; bill slate-grey, 

 lower mandible bluish-grey with pinkish rami; feet brownish 

 flesh-colour.^' Wing 88-90 mm. 



Hab. Angola (Bulu-bulu in the Bihe district. Sambo in 

 Benguella, collected by Dr. Ansorge ; Bailuudu in Benguella, 

 collected by Mr. C. Hubert Pemberton). 



Type in the Tring Museum: ^, No. 14.3. Bulu-bulu, 

 30. ix. 1904 : W. J. Ansorge coll. 



Obs. This new subspecies is very different from its dark 

 South African representative, C. a. albofasciata, and is, 

 so far as we are aware, by far the darkest form of this 

 group. 



