Author: (Myers, 1942)
FBname: Rio pearlfish
Comments: Occurs in small freshwater temporary pools in floodplains of streams and lagoons.  These  pools are shallow with compact, soft reddish brown muddy bottom and dry twice a year, during winter, usually from July to August, and during summer, usually from February to March.  During dry season, all fish die and eggs undergo in diapause within the substrate.  Eclosion happens at the onset of wet season, usually March-April and September-October  (Ref. 42934).  This species was introduced in California (Ref. 4357).  Bottom spawner, 4 months incubation.  Is easy to maintain in the aquarium (Ref. 27139).