98 Evermann and Goldsborongh — Fishes from Canal Zone. 



Astyanax Jischeri. 



3. Cheirodon insi^nis Steindachner. 



Head 3.8 in length; depth 3; eje 2.6 in head; snont 4; interorl)ital 1 

 in eye; dorsal 10; anal 20; scales 6-34-4, 7 pores on right side and 10 

 on left. 



Body short, greatly compressed, the dorsal and ventral outlines nearly 

 evenly arched, the dorsal somewhat the more strongly; lii'ad short, snout 

 blunt. Teeth in a single row in each jaw, each with about 5 equal cusps, 

 and two smaller ones differing in this respect very markedly from Astyanax 

 in wliicli tlie cusps consist of a central large one with one or two small 

 lateral ones on either side. Scales rather large, lateral line incomplete, 

 the pores usually develoj)ed only on 6 to 12 scales. Fins well developed, 

 the height of the dorsal somewhat greater than l(>ngtli of he;id, tliat of the 



