THE AXNALS 



AKD 



MAGAZINE OF NATURAL HISTORY. 



[EIGHTH SERIES.] 

 No. 36. DECEMBER 1910. 



LXI. — On a large Collection of Fishes made by Dr. IV. J. 

 Ansorge in the Quanza and Bengo Rivers, Angola. By 



G. A. BOULENGER, F.R.S. 



(Published by permission of the Trustees of the British Museum.) 



The collection ou wliicli 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 Byimi 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 remark;ible genus Xenopomatichthys, of which a new 



Ann. d- Mag. N. Ilht. 8er. 8. Vol. vi. 36 



