472 



SILUKID^E. 



nuchal process. Dorsal I 7 ; spine feebly curved, not serrated, as long 

 as head, with a very long filamentous prolongation. Adipow dorsal 

 24 times as long as deep, originating immediately behind rayed dorsal. 

 Anal IV 8, pointed. Pectoral spine as long as head, not quite reaching 

 ventral, feebly serrated on outer edge, strongly on inner. Ventral 

 pointed, reaching origin of anal. Caudal deeply forked upper lobe 

 much produced. Caudal peduncle a little deeper than long Pale 

 greyish brown above and on the sides, black beneath ; fins grey ; barbels 

 whitish. 



Fig. 353. 



If i I ] ', 



-^ 



Synodontis res upina t us. 

 Type (P. Z. S. 1904). \. 



Total length 260 millim. 

 Upper Niger. 

 1. Type. Lokoja. 



J. S. Budgett, Esq. (P.)- 



56. SYNODONTIS BATENSODA. 



Synodontis mem.bratw.ceus, part., I. Geoflr. Descr. Egypte, Poiss. p. 297 (1827) ; 



Cuv. & Val. Hist. Poiss. xv. p. 258 (1840) ; Steind. SiUb. Ak. Wien, lxi. i. 



1870, p. 536. 

 Synodontis batensoda, Rtipp. Fortsetz. Beschr. n. Fische Nil, p. 6, pi. iii. fig. 2 



(1832) ; Bouleng. Ann. & Mag. N. H. (7) viii. 1901, p. 12, and Fish. Nile, 



p. 380, pi. lxxiv. (1907). 

 Br achy synodontis batensoda, Bleek. Nat. Tijdsohr. Dierk. i. 1863, p. 55. 



