The rainwater killifish, (Lucania parva) is a species of fish in the Fundulidae

Fundulidae

Fundulidae is the family of topminnows and North American killifishes. The 46 species are native to North America as far south as Yucatan, and to the islands of Bermuda and Cuba, occurring in both freshwater and marine environments....

 family. Its range is from Massachusetts

Massachusetts

The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...

 in the north to Yucatán

Yucatán

Yucatán officially Estado Libre y Soberano de Yucatán is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided in 106 municipalities and its capital city is Mérida....

 in the south.

Synonyms

Cyprinodon parvas (Baird and Girard in Baird 1855:345)

Lucania venusta (Evermann, 1899)

General

Rainwater killifish is an amphidromous fish. It can be found in freshwater, brackish, and marine habitats. It usually prefers quiet, vegetated waters, away from the surface area. Maximum length is approximately 7 cm, but it usually grows to about 5 cm.

External links

• Information on the species at Zipcodezoo
• Nice article on Rainwater killifish with lots of good references