from the Ogowe River and Old Calabar. 267 



This specimen, as well as an adult in the British Museum, 

 has no vomerine teeth, whilst two short groups are present in 

 the second of the British Museum specimens, which is inter- 

 mediate in size between the two former. 



Freshwater Fishes. 



Gobius ceneofuscus. 



Gobius ceneofuscus, Peters, MB. Berl. Akad. 1852, p. 681, and Reise n. 



Mossamb., Flussf. p. 18, Taf. iii. fig. 1 ; Giinth. Fish. iii. p. 61. 

 Gobius ceneofuscus, var. guineensis, Peters, MB. Berlin. Akad. 1876, 



p. 248. 

 Gobius tajasica, Steind. Not. Leyd. Mus. xvi. p. 25 (not synon.). 



A Goby which seems to be very common in the freshwaters 

 of Liberia and the Cameroon River, and is abundant in the 

 Ogowe River, where numerous examples were obtained by 

 Miss Kingsley at Kondo-Kondo, is identical with the species 

 discovered by Peters in the Zambeze, but not, as Dr. Stein- 

 dachner thinks, with the West- Indian G. banana, which has 

 considerably smaller scales on the tail. G. ceneofuscus, there- 

 fore, belongs to the freshwater fauna of Tropical Africa, 

 extending right across the continent. 



Gobius lateristriga, A. Dum. Arch. Mus. x. p. 247, pi. xxi. 

 fig. 1, if not identical with this species, is, at any rate, closely 

 allied to it ; unfortunately the author has omitted to describe 

 the scales, dentition, and other important characters. 



Periophthalmus Koelreuteri, var. papilio, Bl. Schn. 



Common on the West Coast, and attracting the notice of 

 every traveller by its semiterrestrial habits and by the 

 astonishing rapidity with which it leaps, frog-like, over the 

 mud-flats of the littoral. 



Island of Corisco (Steindachner, SB. Wien. Akad. 1869, 

 lx. p. 945). 



Eleotris senegalensis. 



Eleotris (Culius) senegalensis, Steind. SB. Wien. Akad. 1869, lx. p. 949, 

 Taf. ii. figs. 1, 2. 



Ascends the Ogowe River, specimens having been obtained 

 at Kondo-Kondo. 



Mastacembelus cryptacanth us. 



Mastacembelus cn/ptacanthus,Gunth. P. Z. S. 1867, p. 102 ; Ann. & Mag. 



Nat. Hist. 1867, xx. p. 110. 

 Mastacembelus Marchei, Sauv. Bull. Soc. Philom. 1876, p. 94, and N. 



