1869.) pR. A. GUNTHER ON NEW FISHES FROM PERU. 425 
Cua&rosTtoMus HETERACANTHUS. (Figs. 3 & 4.) 
Di 1/7. +A. 5). LG. lat. 22. 
Head much depressed, longer than broad, its length being more 
Fig. 3. 
Chetostomus heteracanthus. 
Fig. 4. 
Chetostomus heteracanthus. 
