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| NAS - Nonindigenous Aquatic Species |
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Common Name: bridle shiner
Taxonomy: available through 
Identification: Smith 1985; Page and Burr (1991); Jenkins and Burkhead (1994).
Size: 6.5 cm.
Native Range: St. Lawrence-Lake Ontario drainage, southern Quebec, eastern Ontario, and New York; Atlantic Slope drainages from southern Maine to Santee River, South Carolina (Page and Burr 1991; Jenkins and Burkhead 1994).
Nonindigenous Occurrences: A single specimen collected from Tucker Creek, Craven County, in the Neuse drainage in 1964 (Jenkins and Zorach 1970) in North Carolina, may have been introduced (Menhinick 1991).
Means of Introduction: Unknown.
Status: Reported in North Carolina.
Impact of Introduction: Unknown.
Remarks: Rather than an introduction, the Neuse drainage record may represent a native occurrence. According to Jenkins (personal communication), the unusual distribution may be explained as a species that was once more widespread and is now widely extirpated. This species has since been identified even farther south, in the Santee River, South Carolina, from collections taken in 1954 (Jenkins and Burkhead 1994), adding credence to the argument that it may once have had a wider distribution and now exists in refugia.
Jenkins and Burkhead (1994) noted that the bridle shiner is very delicate and is an unlikely bait bucket release candidate.
Voucher specimen: North Carolina (CU 52932).
Other Resources:
FishBase Fact Sheet
Author: Leo Nico
Revision Date: 12/5/2003 Citation for this information:
Leo Nico. 2009. Notropis bifrenatus. USGS Nonindigenous Aquatic Species Database, Gainesville, FL.
<http://nas.er.usgs.gov/queries/FactSheet.asp?speciesID=585> Revision Date: 12/5/2003
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