268 Dr. A. Giinther on Reptiles and Fishes 



Arch, Mus. iii. 1880, p. 36, pi. i. fig. 1 ; Steind. Not. Leyd. Mus. 

 xvi. p. 31 ; Denkschr. Wien. Ak. 1879, xli., " Ueber einige aeue . . . 

 Fisch.," p. 16. 



Lambarene. 



Mugil falcipinnis, C. V. 



Warri (Niger delta). 



OpMoceplialus ohscurus, Gtlir. 



Lambarene and Kondo-Kondo. 



Figured in Petherick's ' Travels,' 1869, ii. pi. ii. fig. B. 



Ctenopoma, Ptrs. 



From an examination of a much greater number of speci- 

 mens than were at my disposal some years ago I have come 

 to the conclusion that the variation in the characters of the 

 species is of a limited extent, and that a greater number of 

 species exist than I was formerly inclined to admit. Neither 

 is the distinction of this genus from Spirohranchus so sharp 

 as was supposed, the armature of the opercles not being 

 equally developed in all species, and very young Ctenopomas 

 apparently lacking it. At present I divide the specimens 

 before me under the following specific names : — 



I. A very distinct space between anal and caudal 

 fins. 



A. Large scales on the back, above the lateral 



line. 



1. Maxillary extending beyond the centre 



of the eye. 



17 15 9 



D. — 9 — . A. g. Subopercular armature 



strong 1. multispine, Ptrs. 



2. Maxillary extending to below the centre 



of the eye. 



D. yHjo- A. '— gn- Subopercular arma- 

 ture strong 2. gaboriense, sp. n. 



3. Maxillary not extending to below centre 



of the eye. 



a. D. — g — . A. ^zi\i)- Suboperculum 



not serrated 3. ncmum, sp. n. 



17 11 



b. D. -g-. A. Yo. Suboperculum ser- 



rated 4. congicum, Blgr.* 



B. Small scales on the back, above the lateral 



line 5. inicrolepidotum, Gthr. 



* Ann. & Mag. Nat. Hist. 1887, xix. p. 148. 



