CHILOGLANIS. 479 



B. Dorsal with 6 or 7 branched rays ; 

 depth of body 4 to 4| times in total 

 length ; caudal peduncle about twice 

 as long as deep ; base of adipose fin 

 equal to or a little less than its 

 distance from dorsal 5. C. niloticus, Blgr., p. 483. 



II. Maxillary barbel not or but scarcely longer than eye ; depth of body 5 to 

 6 times in total length ; adipose fin not more than ^ its distance from 

 dorsal. 

 Anal with 7 branched rays ; interorbital space 



greater than diameter of eye 6. C. brevibarbis, Blgr., p. 484. 



Anal with 5 or 6 branched rays ; interorbital 

 space not or but little greater than diameter 

 of eye 1. C. batesii, Blgr., p. 485. 



1. CHILOGLANIS DECKENII. 



Peters, Mon. Berl. Ac. 1868, p. 599, pi. ii., and Decken's Reise O.-Afr. iii. p. 144 

 (1869) ; PfefF. Thierw. O.-Afr., Fische, p. 38, fig. (1896) ; Bouleng. Ann. & 

 Mag. N. H. (7) vi. 1900, p. 521. 



Synodontis eurystomus, Pfeff. Jahrb. Hainb. Wiss. Anst. vi. 1889, p. 14, and x. 

 1893, p. 31, pi. i. fig. 5. 



Fig. 357. 



Chiloc/lanis declenii. 

 Type, after Peters (I. c). 



Body slightly depressed in front, compressed behind, its depth 5^ to 

 6^ times in total length. Head strongly depressed, a little longer than 

 broad, its length 3 to 3-£ times in total length ; eye directed upwards, in 



