Common name: Butterfly Splitfin
Synonyms and Other Names: butterfly goodeid
available through www.itis.gov
Identification: Miller and Fitzsimons (1971); Sanford (1995) - photo.
Size: 10 cm.
Native Range: This species is confined to a very small area, the Río Ameca basin, on the Pacific Slope of western Mexico (Miller and Fitzsimons 1971).
Hydrologic Unit Codes (HUCs) Explained
Puerto Rico &
Interactive maps: Point Distribution Maps
Table 1. States with nonindigenous occurrences, the earliest and latest observations in each state, and the tally and names of HUCs with observations†. Names and dates are hyperlinked to their relevant specimen records. The list of references for all nonindigenous occurrences of Ameca splendens are found here.
Table last updated 2/27/2023
† Populations may not be currently present.
Means of Introduction: Probably an aquarium release.
Status: Reported from Nevada. Records are more than 25 years old and the current status is not known to us.
Impact of Introduction: The impacts of this species are currently unknown, as no studies have been done to determine how it has affected ecosystems in the invaded range. The absence of data does not equate to lack of effects. It does, however, mean that research is required to evaluate effects before conclusions can be made.
References: (click for full references)
Courtenay, W., Jr. - Florida Atlantic University, Boca Raton, FL.
Courtenay, W. R., Jr., and J. E. Deacon. 1983. Fish introductions in the American southwest: a case history of Rogers Spring, Nevada. Southwestern Naturalist 28:221-224.
Deacon, J. E., and J. E. Williams. 1984. Annotated list of the fishes of Nevada. Proceedings of the Biological Society of Washington 97(1):103-118.
Miller, R. R., and J. M. Fitzsimons. 1971. Ameca splendens, a new genus and species of Goodeid fish from western Mexico, with remarks on the classification of the Goodeidae. Copeia 1971(1):1-13.
Robins, C. R., R. M. Bailey, C. E. Bond, J. R. Brooker, E. A. Lachner, R. N. Lea, and W. B. Scott. 1991b. World fishes important to North Americans exclusive of species from the continental waters of the United States and Canada. American Fisheries Society Special Publication 21. American Fisheries Society, Bethesda, MD. 243 pp.
Revision Date: 3/31/2020
Peer Review Date: 4/15/2009
Fuller, P., 2023, Ameca splendens Miller and Fitzsimons, 1971: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=718, Revision Date: 3/31/2020, Peer Review Date: 4/15/2009, Access Date: 3/27/2023
This information is preliminary or provisional and is subject to revision. It is being provided to meet the need for timely best science. The information has not received final approval by the U.S. Geological Survey (USGS) and is provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the information.