Fundulus catenatus (Storer, 1846)
Northern studfish
photo by Brill, J.

Family:  Fundulidae (Topminnows and killifishes)
Max. size:  20 cm TL (male/unsexed)
Environment:  benthopelagic; freshwater, non-migratory
Distribution:  North America: USA: upper East Fork White River system in Indiana; upper Salt and Kentucky River drainages in Kentucky; upper Green, middle and lower Cumberland, and Tennessee River drainages; west of Mississippi River ; southwestern Mississippi in Mississippi and Gulf Slope drainages.
Diagnosis:   
Biology:  Inhabits margins, pools and backwaters of creeks and small to medium rivers. Most commonly found in shallow sandy backwaters of clean rocky creeks. 18 cm max TL (Ref. 5723). Adult feeds on aquatic insect larvae and snails (Ref. 10294). Not a seasonal killifish. Is very difficult to maintain in aquarium (Ref. 27139).
IUCN Red List Status: Least Concern (LC); Date assessed: 30 January 2012 Ref. (130435)
Threat to humans:  harmless


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