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Atlantirivulus riograndensis (Costa & Lanés, 2009) |
| Family: | Rivulidae (Rivulines), subfamily: Rivulinae | |||
| Max. size: | 3.39 cm SL (male/unsexed) | |||
| Environment: | benthopelagic; freshwater | |||
| Distribution: | South America: Patos lagoon basin and adjacent coastal plains in southern Brazil. | |||
| Diagnosis: | ||||
| Biology: | 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). | |||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 07 November 2018 Ref. (130435) | |||
| Threat to humans: | harmless | |||