THE ANNALS AND MAGAZINE OF NATURAL HISTORY. [EIGHTH SERIES.] No. 36. DECEMBER 1910. LXI. — On a large Collection of Fishes made by Dr. W. J. Ansorge in the Quanza and Bengo Rive?'S, Angola. By G. A. Boulenger, F.R.S. (Published by permission of the Trustees of the British Museum.) The collection ou which I have the pleasure to report is one of the largest and most interesting which it has been my privilege to work out. It consists of over 1100 specimens, excellently preserved in spirit, and representing 52 species, 30 of which appear to be new to science. Very little was previously known of the fish-fauna of the rivers of Angola, and the present collection is of the greatest importance from the point of view of geographical dis-tribution, as it shows the affinities of these fishes to be more with East Africa than with the Congo and Gaboon, at least so far as the Cyprinids are concerned, several of the species here described as new having their nearest allies in Abyssinia and neighbouring parts of East Africa. The Bynni group of Barbus, to which seven species are added, is, in the present state of our knowledge, unrepresented in the Congo, and very scantily in the other rivers emptying in the Atlantic, The remarkable genus Xenopomatichthys, of which a uevy Ann. & Mag. N. Hist. Ser, 8. Vol, vi. 36
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