endemic to a single nation
Regularity: Regularly occurring
Type of Residency: Year-round
Global Range: Ozarkian areas of Missouri, Arkansas, Oklahoma, and Kansas, in Red and Arkansas river drainages and independent tributaries of Mississippi River (Lee et al. 1980); locally common in northwestern part of range (Page and Burr 1991).
Length: 7 cm
Catalog Number: USNM 143
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Preparation: Dry Osteological Specimen
Collector(s): H. Mollhausen
Year Collected: 1854
Locality: 20 miles west of Choctaw Agency, United States, North America
Habitat and Ecology
Habitat Type: Freshwater
Comments: Common in pools and quiet runs of creeks and small rivers over sandy, gravelly, or rocky bottoms. Schools in mid-water or near bottom. Spawns possibly in swift riffles.
Non-Migrant: No. All populations of this species make significant seasonal migrations.
Locally Migrant: No. No populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).
Locally Migrant: No. No populations of this species make annual migrations of over 200 km.
Life History and Behavior
Molecular Biology and Genetics
Barcode data: Pimephales tenellus
Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.
See the BOLD taxonomy browser for more complete information about this specimen and other sequences.
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Download FASTA File
Statistics of barcoding coverage: Pimephales tenellus
Public Records: 5
Specimens with Barcodes: 6
Species With Barcodes: 1
IUCN Red List Assessment
Red List Category
Red List Criteria
National NatureServe Conservation Status
Rounded National Status Rank: N4 - Apparently Secure
NatureServe Conservation Status
Rounded Global Status Rank: G4 - Apparently Secure
Reasons: Currently stable. See information for subspecies PARVICEPS.
Total adult population size is unknown but relatively large.
Trend over the past 10 years or three generations is uncertain but likely relatively stable or slowly declining.
Comments: Localized threats may exist, but on a range-wide scale no major threats are known.
Names and Taxonomy
Comments: Includes P. callarchus, formerly regarded as a distinct species (Lee et al. 1980). NOR chromosomal data support monophyly of the four extant species of Pimephales and suggest that the genus Pimephales belongs in a monophyletic assemblage with, among others, the cyprinid genera Cyprinella and Opsopoeodus (Li and Gold 1991); Coburn and Cavender (1992) also indicated that these three genera are phylogenetically closely related.