404 DE. GtJNTHER ON THE FISHES OF CENTRAL AMERICA. 



B. The fresh waters north of the Lakes of Managua and Nicaragua, em})tying into the 

 Atlantic. — To this province belong the fishes collected in the Rio Usumacinta [U.] (and 

 in its tributaries Rio de Santa Isabel, Rio Chisoy, and Rio San GeronimoX in the Rio 

 Motao-ua [M.], and in the Rio Cahabon (Yzabal) [Y.]. 



Eleotris dormitatrix — 



Ayonostoma nasutuin U. 



Heros parma — 



• spilurus — 



aureus — 



motaguensis — 



microphthalmus — ■ 



oblongus — 



augiilifer — — ^- 



salvini U. — 



irregularis U. — — 



godmanni — 



Arius assimilis — 



melanopus — 



Amiurus meridionalis U. 



Pimelodus godmanni U. 



motaguensis — 



salviui U. 



polycaulus U. 



Tvtragonopterm paiiuinetiftis — 



brevimanus U. 



Clialcinopsis dentex l^- 



I'unduhis labialis U- 



Belouesox bebzanus Honduras, Bebze. 



PcEciba chisoyensis U- — — 



Xiphophorus heUeri U. — — 



Selerognatbus meridionabs U. — — 



Carapus fasciatiis — ^i- — 



C. Lake Pet en. — The fish-fauna of this limited district is so pecuharly developed, 

 that we cannot hesitate to describe it as a separate province. 



Heros margaritil'er. 



melauurus. 



urophthalmus. 



aflBnis. 



friedricbsthabi. 



salvini (in common \\ itli 



vinco B). 

 intermedius. 



Peteuia splcndida. 

 Pimelodus petenensis. 

 Tctragonopterus petenensis. 

 Belonesox (in common with province 



B). 

 Poecilia petenensis. 

 Molbenesia petenensis. 

 Cliaitoessus petenensis. 



