420 SILUEIDjE. 



developer] ; prsemaxillary teeth forming a short and broad band ; 

 movable mandibular teeth ^ diameter of eye, about 30 in number. 

 Maxillary barbel not fringed, as long as head, reaching middle of 

 pectoral spine ; outer mandibular barbel twice as long as inner, with a 

 few simple, obtuse branches at the base ; outer mandibular barbel with 

 short, mostly bifid branches. Gill-opening not extending downwards 

 beyond root of pectoral spine. Occipito-nuchal shield rough like the 

 occiput, simply convex, hardly longer than broad, with obtusely pointed 

 posterior processes. Humeral process narrow, pointed, rugose, distinctly 

 keeled, extending as far back as occipito-nuchal process. Dorsal I 7 ; 

 spine a little shorter than head, striated, smooth in front, feebly serrated 

 behind. Adipose dorsal 4 times as long as deep, 1^ times as long as its 

 distance from rayed dorsal. Anal IV 7, rounded. Pectoral spine a 

 little longer than dorsal, strongly serrated on both sides. Ventral not 

 reaching anal. Caudal with moderately deep notch. Caudal peduncle 

 as long as deep. Brown with large darker round spots ; smaller spots 

 on the ventral, anal, and caudal fins ; large spots forming two series 

 across the dorsal fin. 



Total length 75 millim. 



Ubanghi. — Type in Congo Museum, Tervueren. 



16. SYNODONTIS MULTIPUNCTATUS. 



Bouleng. Tr. Zool. Soc. xv. 1898, p. 24, pi. viii. and 1899, p. 95, and Poiss. Bass. 

 Congo, p. 313 (1901). 



Depth of body nearly equal to length of head, 3 j to 31 times in total 

 length. Head a little longer than broad, strongly granulate above from 

 between the eyes ; snout rounded, as long as or slightly longer than 

 postocular part of head ; eye supero-lateral, 4 to 4J times in length of 

 head, 1-| to 2 times in interorbital width ; lips moderately developed ; 

 pisemaxillary teeth forming a short and broad band ; movable man- 

 dibular teeth barely ^ diameter of eye, 15 to 20 in number. Maxillary 

 barbel not margined, as long as or a little longer than head, reaching 

 between base and middle of pectoral spine; mandibular barbels with 

 long slender branches without ramifications, outer twice as long as 

 inner. Gill-opening not extending downwards beyond base of pectoral 

 spine. Occipito-nuchal shield granulate, tectifbrm, about 1^ times as 

 long as broad, posterior processes pointed. Humeral process granulate, 

 acutely pointed, at least twice as long as broad, not extending quite so 

 far back as occipito-nuchal process. Dorsal I 7 ; spine straight, a little 



