RYX0D0NT1S. 



447 



37. SYNODONTIS GUTTATUS. 



Giinth. Ann. & Mag. N. H. (3) xv. 1865, p. 452 ; Vaill. N. Arch. Mas. (3) viii. 

 1896, p. 140 (part.). 



Depth of body 5 times in total length, length of head 4 times. Head 

 If times as long as broad, strongly rugose from between the eyes ; 

 snout acutely pointed, 1\ times postorbital part of head ; eye supero- 

 lateral, 8J times in length of head, 3 times in interorbital width ; lips 

 moderately developed ; prsemaxillary teeth forming a broad crescentic 

 band ; movable mandibular teeth \ diameter of eye, 30 in number. 

 Maxillary barbel not margined, nearly f length of head, not reaching 

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



Fisr. 335. 



_ 



s^s-- * . >vMS 





-«-?-: 





Synodontis guttahts. 

 Type. 



i 



6" 



simple branches, inner with ramified branches. Gill-opening not 

 extending downwards beyond root of pectoral spine. Occipito-nuchal 

 shield rugose like the occiput, convex, 1^ times as long as broad, with 

 obtuse posterior processes. Humeral process not keeled, much longer 

 than broad, acutely pointed, not extending quite so far back as occipito- 

 nuchal process. Dorsal I 7 ; spine f length of head, striated, smooth 

 in front, very feebly serrated behind. Adipose dorsal 3 times as long as 

 deep, a little shorter than its distance from rayed dorsal. Anal III 8, 

 pointed in front. Pectoral spine as long as dorsal, granulate on outer 

 border, feebly seriated on inner border. Caudal deeply notched. Caudal 



