466 Mr. C. T. Regan on the Fishes of 



13. Gephyrocharax chocoensis, Eigenm. 

 14. Parastremma sadina, Eigenm. 



15. Rceboides guatemalensis, Giinth. 

 R. San Juan [Palmer). 



Gastropelecidse. 



16. Thoracocharax brevis, Eigenm. 

 R. San Juan {Palmer). 



Xiphostomatidaa. 



17. Luciocharax strialus, Bouleng. 

 R. San Juan (Palmer). 



Anostomidae. 

 18. Curimatus lineopunctatus, Bouleng. 

 R. Tamana (Palmer). 



Sternarcliidae. 

 19. Sternopygus csquilabiatus, Humboldt. 

 R. Condoto (SpurreH) . 



Gymnotidae. 

 20. Gymnotus carapo, Linn. 

 R Condoto (Spurred). 



Pimelodidae. 

 21. Pimelodella eutcenia, sp. n. 



Depth about 5^ in the length, length of head 4 to 4§. 

 Diameter of eye 3g to 4£ in length of head, nearly equal to 

 interorbital width. Head 1£- as long as broad; snout a 

 little longer than postorbital part of head ; width of mouth 

 ^ width of head ; maxillary barbel extending to middle of 

 anal fin. Dorsal 1 7 ; spine nearly smooth, i to § length of 

 head ; adipose fin 3^ to 3^ in length of fish. Anal 11-12. 

 Pectoral spine | length of head ; inner edge weakly denticu- 

 lated. Pel vies inserted behind dorsal, not reaching anal. 



