34 Mr. G. A. Boulenger on the 



it is distinguishable by its paler colour, larger ears, and 

 practically white tail. 



In naming it after Mr. Loveridge I wish to bear testimony 

 to the enthusiasm which resulted in the preparation of a small 

 mammal collection during the difficulties incidental to a 

 trying campaign. 



8. Grammomys sp. 



<?. 198. 



This specimen has unfortunately lost its bulla?, so that its 

 determination is doubtful ; but it is probably referable to 

 G. surdaster, Thos. & Wr. 



V. — A List of the Freshwater Fishes of Sierra Leone. 

 By G. A. Boulenger, F.R.S. 



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



When describing some new fishes discovered by Mr. N. W. 

 Thomas in these 4 Annals' in 1915 (ser. 8, vol. xv. p. 202), I 

 observed that the exploration of the freshwater fauna of 

 Sierra Leone had not received much attention, and that ihe 

 number of species of fishes with which I was then acquainted 

 amounted only to eighteen. Thanks to further collections 

 made shortly after by Mr. Thomas and quite recently by 

 Mr. A. F. "Wingate, the number has now risen to fifty-eight, 

 and it is of interest to give a list of all the species which can 

 now be recorded : — 



Polypteridae. 



Polypterus palmas, Ayres. 



Lepidosirenid.se. 



Protopterus annectens, Ow. 



MormyridaB. 



Petrocephalus simus, Sauv. 

 Isichthys henryi, Gill. 

 Marcusenius brachistius, Gill. 

 Gnathonemus mento, Blgr. 

 thomasi, Blgr. 



