Lucania parva
Lucania parva (Baird & Girard, 1855)
Rainwater killifish
Lucania parva
photo by Terceira, A.C.

Family:  Fundulidae (Topminnows and killifishes)
Max. size:  7 cm TL (male/unsexed)
Environment:  pelagic-neritic; freshwater; brackish; marine; depth range 0 - 2 m, anadromous
Distribution:  Western Atlantic: Massachusetts and northern Gulf of Mexico to Florida Keys in USA and northeastern Mexico. Ascends Rio Grande and Pecos River in Texas and New Mexico in USA (Ref. 5723).
Diagnosis:  Dorsal soft rays (total): 11-12
Biology:  Adults inhabit vegetated quiet water and usually swims several inches below surface of water. They feed on larval crustaceans (mainly cyclopoid and harpacticoid copepods), mosquito larvae, small worms, and mollusks (Ref. 79012). Not a seasonal killifish. Is difficult to maintain in aquarium (Ref. 27139).
IUCN Red List Status: Least Concern (LC); Date assessed: 09 January 2019 Ref. (130435)
Threat to humans:  harmless


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