original description
Müller, O. F. (1774). Vermium terrestrium et fluviatilium, seu animalium infusorium, Helminthicorum, et testaceorum, non marinorum, succincta historia. vol 2: I-XXXVI, 1-214, 10 unnumbered pages. Havniae et Lipsiae, apud Heineck et Faber, ex officina Molleriana., available online at https://www.biodiversitylibrary.org/page/12893715
page(s): 187-188 [details]
From editor or global species database
Taxonomic remark Glöer (2002) considered this taxon as a synonym of Valvata piscinalis antiqua.
Anistratenko and Anistratenko (2001: 139) cited the opinion of Ya.I.Starobogatov,
that Valvata piscinalis var. fluviatilis Colbeau, 1859 is a synonym of Cincinna contorta.
Most European malacologists under the name Valvata fluviatilis identified separate
species, for which Starobogatov Starobogatov in Anistratenko and Anistratenko (2001:
139) proposed a new name Cincinna (Cincinna) falsifluviatilis [Haszprunar, 2014: 32] [details]
Taxonomy The type specimens of Nerita contorta are lost, and thus the taxonomic identity of this taxon will, probably, remain unclear [details]
Type material Lost [details]