See text Plectotropis is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Camaenidae.
[1] Plectotropis is a substitute name for Thea Albers, 1850, junior homonym of Thea Mulsant, 1846.
Martens designated Helix elegantissima L. Pfeiffer, 1849 as type species, which was not originally included in Thea.
[1]