APPENDIX C. 
263 
and sometimes witli a small blackish spot on the root of the caudal. 
Very common ; does not exceed four inches in length. 
Barilius. 
M. de Joannis has described three small Cyprinoids which appear 
to belong to this genus. He found them near Thebes, and they 
Barilius niloticiis. 
have not been rediscovered since his time. Copies of the figures 
Barilms tJiehensis. 
given by him are here added, in order to direct the attention of 
