eigenmann: the cheirodontin^. 



69 



Origin of dorsal a little nearer caudal than tip of snout, its height a little less 

 than the length of head; adipose fin well-developed; caudal lobes about as long 

 as head; base of anal about equal to snovit and eye, considerably' less than the length 

 of the caudal peduncle; origin of anal below, or a little behind, the base of the 

 last dorsal rays, first developed ray of the anal extending beyond the tip of the 



Fig. 22. Cheirodon annw McAtee. Interhaemal spines of &. 



Fig. 23. Cheirodon annce McAtee. a, premaxillary ; b, maxillary; c, portion of mandible; d, portion of 

 the interhffimals of c?. 



last ray; ventrals extending to, or a little short of, origin of anal, pectorals to, or a 

 little short of, ventrals. 



Thirteen interhsemals on the caudal peduncle of the female, extending four- 

 tenths to base of last anal ray. The spines very strong, with broad lateral processes 

 in the male, extending a little further toward the anal. Scales mostly removed. A 

 distinctly silvery lateral band. 



36. Cheirodon insignis Steindachner. (Plate XVII, fig. 2.) 

 Cheirodon insignis Steindachner, Fisch-Fauna Cauca & Fliisse bei Guayaquil, 1880, 



p. 22, pi. VI, fig. 3 (Cauca); Eigenmann and Eigenmann, Proc. U. S. Nat. 



Mus., Vol. XIV, 1891, p. 54; Eigenmann, Reports Princeton Univ. Exped. 



Patagonia, Vol. Ill, 1910, p. 429; Evermann & Goldsborough, Proc. Biol. 



Soc. Washington, Vol. XXII, p. 98 (Tabernilla, Atlantic slope of Panama 



Canal Zone). 

 Cheirodon gorgonce Evermann & Goldsborough, I. c. p. 99. Below the dam at Gorgona, 



Canal Zone.^- 



^ This species is said to differ from insignis "in the larger eye, the fewer anal rays and the shghtly shorter 

 dorsal rays" as weU as in the teeth. The differences found may be tabulated as shown at foot of p. 70: 



