Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
South America: Patos lagoon basin and adjacent coastal plains in southern Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.4 cm SL male/unsexed; (Ref. 81223)
The type locality is located in an open vegetation at the boarder of a forest and is a shallow pool, about 5-10 cm deep, with orangish hyaline water (Ref. 81223). A female-biased sex ratio (2.38 : 1, female : male) has been reported for this species (Ref. 92020).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Costa, W.J.E.M. and L.E.K. Lanés, 2009. Rivulus riograndensis, a new aplocheiloid killifish from Southern Brazil (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 20(1):91-95. (Ref. 81223)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
Special reports
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