https://www.fws.gov/rivers/species/northern-riffleshell-epioblasma-torulosa-rangiana
Northern Riffleshell (Epioblasma torulosa rangiana) | U.S. Fish & Wildlife Service
The northern riffleshell is a small to medium size (up to 3 inches long) freshwater mussel that was listed as endangered, without critical habitat, in 1993 (58...
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https://species.wikimedia.org/wiki/Leptosiropsis_torulosa
Leptosiropsis torulosa - Wikispecies
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