Contectiana Bourguignat, 1880

Anistratenko, V. V., Furyk, Yu. I., Anistratenko, O. Yu. & Degtyarenko, E. V., 2019, A Review Of Species Diversity, Distribution And Ecology Of Freshwater Gastropod Molluscs Inhabiting The Ukrainian Transcarpathian, Vestnik Zoologii 53 (5), pp. 349-374 : 358

Genus Contectiana Bourguignat, 1880

Type species: Cyclostoma contectum Millet, 1813

In literature the name Contectiana is usually ranking as subgenus of Viviparus or its synonym and thus Cyclostoma contectum Millet, 1813 is respectively called “ Viviparus contectus ” meaning close relationships with Viviparus viviparus (e. g. Falkner et al., 2001; Welter-Schultes, 2012). However, “ viviparus ” and “ contectus ” clearly differentiate from each other not only in conchology ( Zilch, 1955) but in morphology of embryo shell ( Riedel, 1993; Ryabceva, Anistratenko, 2012; Glöer, Georgiev, 2014), caryology ( Rainer, 1963; Pavluchenkova, 1997; Andriichuk, Garbar, 2015) and radula morphology ( Falniowski et al., 1996; Anistratenko et al., 2013). In our opinion the data available allow to reclassify “ contecta ” into its own genus, Contectiana .