152 



CHAPTER IX. 



THE FISHES OF LAKE TANGANYIKA. 



As will have been seen in the preceding chapters, the 

 fishes that have been recently discovered in Lake Tan- 

 ganyika consist of 87 different species, of which 74 are 

 new to science. Of these latter, four were originally 

 collected by Captain Hore, 21 by the Lemaire Expedition 

 and the officials of the Congo Free State, the remaining 

 49 being collected by myself and my colleagues during 

 the first and second Tanganyika Expeditions. For 

 the elaborate and careful working out of this somewhat 

 unique series we have been entirely indebted to Mr. 

 Boulenger, of the British Museum, who published two 

 fully illustrated reports on them in the transactions of 

 the Zoological Society.* In the present work I have 

 consequently merely incorporated Mr. Boulenger's original 

 descriptions accompanied by reproductions of Mr. Green's 

 careful and accurate drawings of the most conspicuous 

 genera and species. 



In what follows the fishes have been arranged in their 

 natural order, and only the descriptions of the few forms 

 found in Tanganyika, which like Polypterus were already 

 well known, being omitted. 



* For references to these and other papers containing descriptions of the fishes 

 collected during the Tanganyika expeditions by Mr. Boulenger, see bibliography of the 

 expeditions at the end of the volume. 



