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Thapsia usambarensis Verdcourt 1982
urn:lsid:organismnames.com:name:355950
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228
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Thapsia usambarensis Verdcourt 1982
Verdcourt 1982. Notes on east African land and freshwater snails, 12-15. Zoologische Mededelingen (Leiden), 56(18) 1982: 217-236