226 
TEAYELS IN CENTEAL AFEICA. 
lobes pointed. Pectoral spine rather broad^ strongly serrated^ ter- 
minating at a rather considerable distance from the ventral. A 
blackish spot at the origin of the lateral line. Common in all parts 
of the river ; grows to a length of twelve inches ; bad eating. 
SiLURANODON. 
Similar in form to Schilbe. One short dorsal fin without pun- 
gent spine ; no adipose fin ; the anal fin terminates close by the 
caudalj which is forked. Barbels eight : one at the nostrils^ one to 
each maxillary^ and four behind the chin^ the roots of the latter 
being nearly in the same transverse series. No teeth in the jaws 
or on the palate. Eyes behind and below the angle of the mouth. 
Neck not elevated. Ventral composed of six rays. 
Siluranodon auritus, Geoff. 
D. 5. A. 80. P. 1/9. V. 6. 
The nasal and maxillary barbels are shorter than those on the 
chin^ which are one-third or one-fourth longer than the head. 
Pectoral spine rather strongs serrated^ and nearly as long as the 
first ray. Silvery. 
This fish must be very scarce;, as I have not been able to obtain 
an example. Geoffroy St. Hilaire says that it is called by the Arabs 
Schilbe oudney^ the latter word being spelt oued denne by Valen- 
ciennes. 
