314 



SILLTRID.E. 



head ; band of prsemaxillary teeth 6 times as long as broad, as broad as 

 and close to the crescentic band of vomerine teeth ; nasal barbel about 

 -j length of head ; maxillary barbel 2£ times length of head, extending 

 beyond root of ventral ; inner mandibular barbel f length of head, 

 outer f . Dorsal I 8, longest branched ray nearly as long as head ; 

 last ray above inner ray of ventral. Adipose fin 5 times as long 



Fig. 249. 



Bagrus ubangensis. 

 Type (A. M. C). $ 



as deep, much longer than rayed dorsal and twice and ^ its distance 

 from the latter. Anal 11, 7 rays branched. Pectoral § length of head, 

 its spine strong and feebly denticulate on inner edge. Caudal deeply 

 forked, both lobes prolonged into filaments. Caudal peduncle scarcely 

 longer than deep. Brown above, with a few black dots, whitish beneath ; 

 a large blackish spot behind the shoulder. 



Total length 300 millitn. 



Ubanghi. — Type in Congo Museum, Tervueren. 



15. CHRYSICHTHYS. 



Bleek. Act. Soc. Sc. Ind.-Neerl. iv. 1858, p. GO, and Nederl. Tijdschr. Dierk. i. 



1863, p. 95 ; Giintb. Cat. Fish. v. p. 70 (1864) ; Bouleng. Poiss. Bass. 



Congo, p. 277 (1901), and Fish. Nile, p. 333 (1907). 

 Melanodactylus, Bleek. Nederl. Tijdschr. Dierk. i. 1863, p. 95. 

 Chrysobagrus, Bouleng. Ann. Mus. Congo, i. p. 290 (1899). 



Body moderately elongate, feebly compressed. Dorsal and anal fins 

 short, the former consisting of a spine and 5 or 6 branched rays and 

 followed by an adipose fin. Pectorai fin with a spine. Ventral fin 



