Helisoma trivolvis Say 1817 (snail)
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Gastropoda - Heterostropha - Planorbidae
Alternative combination: Planorbis trivolvis
Belongs to Helisoma according to G. Willett 1937
Sister taxa: Helisoma dongdawusuensis, Helisoma llanerensis
Ecology: epifaunal
Distribution:
• Quaternary of United States (8: California, Kansas, Texas collections)
Total: 8 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.