482 



PROCEEDINGS OF THE ACADEMY OF 



[Oct., 



brownish. Side of head silvered. Iris deep reddish-dusky. Length 

 3^^ inches (caudal damaged). 



Owing to Cope's imperfect figure I have substituted the accompany- 

 ing one, made from the type. 



Stethaprion chryseum Cope. Fig. 60. 



Proc. Acad. Nat. Sci. Phila., 1871 (1872), p. 261. Type, No. 8,030, A. N. 



S. P. Ambyiacu River. John Hauxwell. Cope, Proc. Amer. Philos. 



Soc. PMla., XVII, 1877-78 (May 17, 1878), p. 692. Peruvian Amazon. 

 Prof. J. Orton. 



Width of head 2 in its length ; interorbital space 2| in head, measured 

 from tip of upper jaw. Gill-rakers 9 + 13. Color in alcohol more 



• Fig. 60. — Stethaprion chryseum Cope. 



or less uniform brown. In most respects similar to the preceding 

 Length 2|| inches (caudal damaged). Type. 



In Part I of this paper a number of figures have been blurred by the printer, 

 and as this may cause confusion in their comparison I give a list with explana- 

 tions. 



