330 DR. A. GtTNTHER ON [l^OV. 18, 



Several specimens of this species, originally described from 

 Cameroon, The largest measures 190 millim. 



Depth of body 14 to 17 times in total length, length of head 

 8g or 9 times. Length of head 4 to 4| times in distance from 

 snout to vent, 1^ to twice as great as its distance from 

 first dorsal spine ; a prseorbital and 2 or 3 prfeopercular spines. 

 Dorsal XXYIII-XXXI, 110-130; anal II, 110-130. The 

 coloration varies : some specimens are nearly uniform brown, 

 with an ill-defined dai-ker lateral band, others are spotted with 

 darker or with lighter ; a series of alternating dark and light 

 bars may be present at the base of the anal fin. 



EXPLANATION OF THE PLATES. 



Plate XXVIII. 



Fig. 1. Frotopterus annectens, j'oung, p. 325. 



2. Fetrocephahis ansorgii, p. 325. 



3. Sarbus nigeriensis, p. 327. 



Plate XXIX. 



Pig. 1. Si/Hodotitis melanopierus, p. 327. 



2. Pelmatochromis jjellegrini, Tp. 328. 



3. Mastacembelus loennbergii, p. 329. 



3. Last Account of Fishes collected by Mr. R. B. N. Walker, 

 C.M.Z.S., on the Gold Coast, By Dr. A. Gunther, 

 F.R.S., V.P.Z.S. 



[Received November 7, 1902.] 

 (Plates XXX.-XXXIII.i & Text-fig. 62.) 



Shortly after the publication of my pi'evious paper on Fishes 

 from the Gold Coast (Proc. Zool. Soc. 1899, pp. 716-732), 

 Mr. Walker paid another visit to that district. On this occasion 

 he travelled into Ashantee, visited Lake Busum-chi, and followed 

 the River Enon on a portion of his return journey. He did not 

 long survive the fatigues of this, his last, voyage. 



It was his intention to supply me with full particulars as 

 regards the stopping-places at which he obtained the fishes ; and 

 I was all the more anxious to obtain this information, as some of 

 the places are small and not important enough to be shown on 

 any of the most recent maps of the country. Fortunately he was 

 careful in labelling the bottles with the names and sometimes 

 with the positions of the localities, although not always in a very 

 legible manner ; and supplementing this source of information 

 with what I can gather from his letters, I am able to supply the 

 following list : — 



1. River Atesu, 



2. River Ibbi, and 



1 For explanation of the Plates, see p. 339. 



