SYNODONTIS. 



429 



back, and adipose fin; fins grey or olive, with numerous small round 

 black spots ; fringe of maxillary barbels black. 



Total length 195 millim. 



White Nile. 

 1. One of the types. 



Goz abu Gumah. 



L. Loat, Esq. (C). 



24. SYNODONTIS NIGRiTA. 



Cuv. & Val. Hist. Poiss. xv. p. 265, pi. ccccxli. (1840); Giinth. Cat. Fish. v. 

 p. 214 (18G4); Steind. Sitzb. Ak. Wien, lxi. i. 1870, p. 535; Vaill. N. Arch. 

 Mus. (3) viii. 1896, p. 149, & vii. pi. xiii. fig. 1 ; Werner, Sitzb. Ak. Wien, 

 cxv. i. 1906, p. 1141 ; Bouleng. Fish. Nile, p. 366, pi. lxxi. fig. 1 (1907). 



Hemisynodontis nigrita, Bleek. Nederl. Tijdschr. Dierk. i. 1863, p. 55. 



Depth of body 3 to 3f times in total length, length of head 3 to 3J 



Fig. 322. 



Jm** 



Synodoniis nigrita. 

 White Nile (F. N.). § . 



times. Head a little longer than broad, rugose, granulate above from 

 between the eyes ; snout rounded, as long as postocular part of head ; 

 eye supero-lateral, 4 to 5-^ times in length of head, 1^ to 2\ times in 

 interorbital width ; lips moderately developed ; prsemaxillary teeth 

 forming a short and broad band ; movable mandibular teeth not more 

 than \ diameter of eye, 30 to 35 in number. Maxillary barbel with a 

 broad marginal membrane in its basal third, 1 to If times length of 

 head, reaching between anterior and posterior fourth of pectoral spine ; 

 outer mandibular barbel about twice as long as inner, both with short, 



