ON BIRDS FROM S. W. AFRICA. 65 NOTE XVI. ON A NEW COLLECTION OF BIRDS FROM SOUTH WESTERN AFRICA. BY J. BÜTTIKOFER. (Plate 4). Shortly after ray previous paper on South African Birds had left the press, our Museum received a new collection from Mr. van der Keilen, who seems still to stay at his head-quarters in the Colony of Boers at Humpata, in the Upper Cunene region. This recent collection contains the considerable number of 267 birds-skins, representing 103 different species , 49 of which are not contained in his former consignments and thus not mentioned in my pre-vious list. Of these 49 species , which in this paper will be marked with an asterisk , two proof to be new to science. All the birds are collected during the first trimester of 1888, and the only locality mentioned is Gain bos, in the Upper Cunene region. The aforesaid 49 species added to those of the former consignments , the species we hi-therto received from that country will reach the con-siderable number of 180. 1. A q uil a rap ax (Tenim.). — Two females, one of which (N°. 429) has the upper surface, sides of head and neck and the breast very dark, with but few longi-tudinal stripes of fawn-color. Notes from ilie Leyden Museum , Vol. XJ. 5
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