APPENDIX C. 
225 
Eutropius. 
Very similar to Schilbe. A very small adipose fin; a short dorsal 
fin with a pungent spine ; anal fin long^ terminating at some dis- 
tanee from the caudal^ which is forked. Barbels eight : one to each 
maxillary, one to each posterior nostril, and two to each mandible ; 
the mandihulary barbels are placed one behind the other. The 
palatine teeth are present, and form, together with those of the 
vomer, a horseshoe-like hand. Nostrils open, not prolonged into 
tubes, situated at some distance from each other. Head covered 
with skin. The upper jaw is the longer. Ventral with six rays. 
Eutropius niloticus^ Rupp. {Schilbe.) 
D. 1/6. A. 58—60. P. 1/9. V. 6. 
The height of the body is contained nearly four times in the 
total length (without caudal) , the length of the head five times and 
a half. The greatest width of the head equals its length without 
snout. The upper jaw is the longer : cleft of the mouth twice as 
broad as deep. Nasal and anterior mandihulary barbels short; 
maxillary barbels much longer than the posterior of the mandibles, 
not extending to the base of the pectoral. The diameter of the eye 
is one-fifth or one-sixth of the length of the head. The dorsal fin 
is situated entirely before the ventral, the width of its base being 
equal to that of the latter. Its height equals the length of the 
head ; spine slender, serrated posteriorly. The anal fin terminates 
at some distance from the caudal. Caudal deeply forked, with the 
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VOL. II. 
