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Heterandria formosa (Girard, 1859) Least killifish |
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photo by
Slaboch, R. |
| Family: | Poeciliidae (Poeciliids), subfamily: Poeciliinae | |||
| Max. size: | 3.6 cm TL (male/unsexed) | |||
| Environment: | benthopelagic; freshwater; brackish; pH range: 7 - 8; dH range: 9 - 19, non-migratory | |||
| Distribution: | North America: occurs only in the USA from Cape Fear River drainage in North Carolina to southern Louisiana. | |||
| Diagnosis: | ||||
| Biology: | Adults inhabit heavily vegetated standing to slow-flowing fresh and brackish water. They feed on worms, crustaceans and plant matter (Ref. 7020). A truly viviparous fish (Ref. 45952). | |||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 14 February 2012 Ref. (130435) | |||
| Threat to humans: | harmless | |||