CHALCEUS ROTUNDATUS. 



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" Caput mediocre, supra latum, lateraliter subcompressum. 

 Oculi magni, laterales. Os mediocre, transversum, apertum, 

 quadratum ; mandibula prominens. Dentes acuti, minutissimi 

 in parv'is ossibus maxillaribus lateralibus et in serie anteriore 

 ossium inter-maxillarium totum labium superius ia medio susti- 

 nentium ; in mandibula et in serie posteriore ossium inter- 

 maxillarium, dentes maximi, multicuspides, cuspide medio 

 majori, magis prominente. Lingua papillosa. Membrana bran- 

 chiostega radiis 4 gracilibus. Corpus latmn, compressum, 

 squamis magnis obductum. Pinnse mediocres, analis latis- 

 sima." 



Chalceus rotundatus. 



Schomh. Draicings^ No. 54. 



L. Geral, Araisiri. 



C. rotundatus. 



This fish seems nearly allied in general form, and 

 in the position of the fins, to the C. angulatus of 



o 



