Lindholm W.A. (1932). On the finding of the American species Helisoma trivolvis Say (Gastropoda, Planobidae) in the Pleistocene deposits of the Kolyma River [= О нахождении американского Helisoma trivolvis Say (Gastropoda, Planorbidae) в плейстоцене р. Колымы]. <em>Trudy Komissii po izucheniyu proizvoditel'nykh sil AN SSSR. Seriya yakutskaya.</em> 11: 65–73. [In Russian]. page(s): 69, figs 1-4 [details] Available for editors [request]
original descriptionLindholm W.A. (1932). On the finding of the American species Helisoma trivolvis Say (Gastropoda, Planobidae) in the Pleistocene deposits of the Kolyma River [= О нахождении американского Helisoma trivolvis Say (Gastropoda, Planorbidae) в плейстоцене р. Колымы]. <em>Trudy Komissii po izucheniyu proizvoditel'nykh sil AN SSSR. Seriya yakutskaya.</em> 11: 65–73. [In Russian]. page(s): 69, figs 1-4 [details] Available for editors [request]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Fossil range Pleistocene [details] Type locality Russia, Republic of Yakutia, Kolhyma River basin, the Quaternary deposits in the Omolon River mouth [details]
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