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The shoal chub (Macrhybopsis hyostoma) is a species of freshwater ray-finned fish belonging to the family Leuciscidae, the shiners, daces and minnows.[2] It occurs in Mississippi River drainages from eastern Ohio to southern Minnesota and Nebraska south to Louisiana. Its preferred habitat is sand and gravel runs (shoals) of small to large rivers.[3]

In their breeding condition, males develop horny nuptial tubercles on the pectoral fins, and both sexes produce a sandpaper-like texture which is present across the surface of the head and much of the body.[4]

References

  1. ^ NatureServe (2013). "Macrhybopsis hyostoma". IUCN Red List of Threatened Species. 2013: e.T202151A18229392. doi:10.2305/IUCN.UK.2013-1.RLTS.T202151A18229392.en. Retrieved 18 November 2021.
  2. ^ a b Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Macrhybopsis". Catalog of Fishes. California Academy of Sciences. Retrieved 14 March 2025.
  3. ^ Froese, Rainer; Pauly, Daniel (eds.). "Macrhybopsis hyostoma". FishBase. November 2017 version.
  4. ^ Amanda K. Pinion; Kevin W. Conway (July 2019). "Tuberculation of Macrhybopsis hyostoma (Teleostei: Cyprinidae)" (PDF). Ichthyol. Explor. Freshw. 29 (1): 45–55. doi:10.23788/IEF-1095. ISSN 0936-9902.

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