Common name: Tonguetied Minnow
available through www.itis.gov
Identification: Smith (1985); Page and Burr (1991); Jenkins and Burkhead (1994).
Size: 16 cm.
Native Range: Three disjunct areas of upper Ohio River basin; upper Allegheny River drainage, New York and Pennsylvania; upper New River drainage, West Virginia, Virginia, and North Carolina; and Great Miami and Little Miami River systems, Ohio; also in upper Genesee River (Lake Ontario drainage), New York and Pennsylvania (Page and Burr 1991).
Although the Tonguetied Minnow is generally regarded as native to the Monongahela system, Ohio River drainage, of West Virginia, Stauffer et al. (1995) indicated its presence in that water body may have been the result of a past introduction.
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 Exoglossum laurae are found here.
Table last updated 2/27/2023
† Populations may not be currently present.
Means of Introduction: Unknown; possible bait bucket release.
Status: Based on information given in Stauffer et al. (1995), this species is apparently established, possibly introduced, in Monongahela drainage, West Virginia.
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.
Revision Date: 4/30/2018
Peer Review Date: 6/23/2000
Nico, L., 2023, Exoglossum laurae (Hubbs, 1931): U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=529, Revision Date: 4/30/2018, Peer Review Date: 6/23/2000, Access Date: 3/21/2023
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.