SYJ\ T ODONTIS. 



363 



4. SYNODONTIS VICTOKLE. 



(Plate LXVIL fig. 1.) 



Boulenger, Ann. & Mag. N. H. (7) xvii. 1906, p. 438. 



Body moderately compressed, its depth four to four and a half times in the total 

 length, the length of the head three and a half to four times. Head once and one- 

 third as long as broad, as deep as broad, granulate above, the snout smooth ; frontal 

 fontanelle narrow; snout rounded, as long as the postocular part of the head; eye 

 superolateral, its diameter five and one-third to six times in the length of the head, 

 twice and one-third to twice and a half in the width of the interorbital region, which 

 is slightly convex ; occipital region convex. Lips moderately developed ; prsemaxillary 

 teeth forming a short and broad band ; movable mandibular teeth one-third the 

 diameter of the eye, 19 to 21 in number. Maxillary barbel with a narrow marginal 

 membrane at the base, nearly as long as the head, extending to the base of the 

 pectoral spine ; mandibular barbel with slender simple branches, the outer inserted a 

 little further back than and nearly twice as long as the inner. Gill-opening not 

 extending below the base of the pectoral fin. Occipito-nuchal shield simply convex, 

 rugose and pitted, once and one-fourth to once and one-third as long as broad, ending 

 in two blunt points. Humeral process covered with granular asperities, once and a 

 half as long as broad, acutely pointed, not extending as far back as the occipito-nuchal 



Measurements (in millimetres). 



1. 2. 



Total length (without caudal) 225 192 



Greatest depth 56 43 



Length of head 65 48 



Width of head 47 36 



Length of snout 27 20 



Diameter of eye 11 9 



Interorbital width 27 21 



Width of mouth 16 13 



Maxillary barbel 64 49 



Outer mandibular barbel 33 29 



Inner mandibular barbel 19 15 



Length of dorsal spine ? 38 



Basal length of dorsal fin 30 26 



„ „ adipose fin 64 46 



Greatest depth of adipose fin 16 9 



Length of pectoral spine ? 43 



1. Buganga. 2. Entebbe. 



