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180 LÖNNBERG, NOTES ON FISHES COLLECTED IN THE CAMEROONS. 



I have counted the number of rays in the vertical fins and 

 found theni as foUows 



in the first dorsal 11 in the second dorsal 14 in the anal 11 



V » >/ » 10 -■ » » 



» » » » 11 » » >; 



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It seeras thus to be rather constant: 

 D. 11—14; A. 11. 



The tirst ray of the first dorsal fin is often more or less 

 produced. This is the case with two thirds (the 6 last ones), 

 including the largest of the above mentioned specimens. 



As this fish has been found in Sierra Leone, Liberia and 

 other places in West Africa it was not astonishing to find it 

 among Mr. Sjöstedts fishes from the Canieroons. 



Eleotris Büttikoferi Steindachner. 



Fishes, which I have classified as belonging to this species, 

 were caught in a muddy rivulet running through the farm of 

 Bonge to the river Meme. 



It seems to be a rather variable species, so that specimens 

 caught in exactly the same place are difFerent in some respects, 

 for instance, in one specimen of 11 cm. length there are only a 

 few scattered scales between the bind margin of the eye and the 

 hind margin of the praeoperculum on one side and none on the 

 other. The same specimen has a rather short and bumped nose 

 the length of which is contained 4 times in that of the head. 

 The length of the head is contained a little more than three 

 times in the total length to the base of the caudal fin. The 

 number of scales and other characteristics are the same as 

 Steindachner gives (»Die Fische Liberias», Notes Leyden Mus. 

 Vol. XVI, N:o I & II, 1894, p. 29) and therefore I regard this 



