Obovaria olivaria

Obovaria olivaria is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. It is commonly referred to as hickorynut.[4]

Obovaria olivaria

Apparently Secure  (NatureServe)[2]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Unionida
Family: Unionidae
Genus: Obovaria
Species:
O. olivaria
Binomial name
Obovaria olivaria
(Rafinesque, 1820)
Synonyms[3]
List
    • Amblema olivaria Rafinesque, 1820
    • Amblema olivaria subsp. dilatata Rafinesque, 1820
    • Amblema olivaria subsp. fasciolaris Rafinesque, 1820
    • Margarita (Unio) ellipsis (I.Lea, 1827)
    • Margaron (Unio) ellipsis (I.Lea, 1827)
    • Obovaria (Pseudoon) ellipsis (I.Lea, 1827)
    • Unio ellipsis I.Lea, 1827
    • Unio pealei I.Lea, 1871

The species is native to eastern North America. It is found in the drainages of the Ohio River, the St. Lawrence River, and the Great Lakes. It is known to use only sturgeons as larval hosts.[5]

Although the species is considered of least concern by the IUCN, it is considered endangered across much of its native habitat. The species is especially threatened near the Great Lakes and in Canada.[2][5] According to NatureServe, the hickorynut is presumed to be extirpated in Kansas, Alabama and Ohio and may have been extirpated from Nebraska and Pennsylvania.[2]

References
  1. Cummings, K.; Cordeiro, J. (2012). "Obovaria olivaria". IUCN Red List of Threatened Species. 2012: e.T15022A547105. doi:10.2305/IUCN.UK.2012.RLTS.T15022A547105.en. Retrieved 16 November 2021.
  2. NatureServe (3 March 2023). "Obovaria olivaria". NatureServe Biodiversity Location Data accessed through NatureServe Explorer. Arlington, Virginia: NatureServe. Retrieved 7 March 2023.
  3. "Obovaria olivaria (Rafinesque, 1820)". Global Biodiversity Information Facility. Retrieved 7 March 2023.
  4. "Obovaria olivaria (Hickorynut)". Michigan Natural Features Inventory. Michigan State University. Retrieved 7 March 2023.
  5. Bucholz, Jamie R.; Sard, Nicholas M.; VanTassel, Nichelle M.; Lozier, Jeffrey D.; Morris, Todd J.; Paquet, Annie; Zanatta, David T. (2022-01-26). "RAD‐tag and mitochondrial DNA sequencing reveal the genetic structure of a widespread and regionally imperiled freshwater mussel, Obovaria olivaria (Bivalvia: Unionidae)". Ecology and Evolution. 12 (1): e8560. doi:10.1002/ece3.8560. ISSN 2045-7758. PMC 8794720. PMID 35127054.


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