AUCHENOGLANIS. 



373 



Brown above, with ill-defined large round darker spots above the lateral 

 line and a longitudinal dark band below it ; belly whitish, rayed fins 

 without spots. 



Fig. 28 S. 



Auchenoglanis altqiiiuds. 

 Type. f. 



Total length 210 miilim. 



South Cameroon (Ja River, Congo System). 



1. Type. Ja R. at Esamesa. 



G. L. Bates, Esq. (C.) 



5. AUCHENOGLANIS BALLAYI. 



Pimelodus halaiji, Sauv. Bull. Soc. Pliilom. (7) iii. 1878, p. 98, and N. Arch. Mus. 



(2) iii. 1880, p. 44 ; Vaill. Bull. Soc. Pliilom. (8) vi. 1894, p. 77. 

 Pimelodus guirali, Thomin. Bull. Soc. Pliilom. (7) x. 1886, p. 162. 

 Auchenoglanis ballayi, Bouleng. Poiss. Bass. Congo, p. 295 (1901 ). 

 Auchenoglanis pulcher, Bouleng. Proc. Zool. Soc. 1902, i. p. 267, pi. xxix. fig. 2. 



Depth of body 4 to 5^ times in total length, length of head 3 to 3^ 

 times. Head moderately depressed, 1-g- to 1^ times as long as broad, its 

 upper surface smooth or feebly rugose ; operculum with more or less 

 distinct radiating stria? ; occipital process small, longer than broad, 

 narrowly but distinctly separated from the feebly developed interneural 

 plate ; snout pointed, j or a little more than \ length of head ; eye 

 supero-lateral, 7 to 10 times in length of head, 2 to 3 times in inter- 

 orbital width ; mouth small, nearly terminal, with thick papillose lips ; 



