Polygyratia Gray, 1847

Salvador, Rodrigo Brincalepe & Cavallari, Daniel Caracanhas, 2020, Taxonomy and distribution of enigmatic " helicoid " Polygyratia Gray, 1847 (Gastropoda, Stylommatophora), Zoosystematics and Evolution 96 (1), pp. 91-101 : 91

Genus Polygyratia Gray, 1847

Polygyratia Gray, 1847: 173; Gude 1920: 59; Thiele 1931: 679; Morretes 1949: 163; Zilch 1960: 603; Richardson 1985: 262; Parkinson et al. 1987: 65; Salgado and Coelho 2003: 172; Schileyko 2006: 1844; Simone 2006: 247; Breure and Araujo 2017: 121; MolluscaBase 2018; Salvador 2019: 95.

Ophiogyra Albers, 1850: 91; Albers 1860: 94.

Type species.

Helix Polygyrata Born, 1778, by monotypy.

Included species.

P. polygyrata (Born, 1778).

Diagnosis.

Shell planispiral, multi-whorled and large for family. Body whorls marked by three angulations: one dorsal, one median and one basal. Aperture large (for family), rounded, with reflected peristome. Presence of short internal (not visible from aperture) parietal and palatal lamellae on body whorl. Aperture without barriers.

Description.

As P. polygyrata below.

Remarks.

The name Ophiogyra was introduced by Albers (1850), who likely was not aware of the new name established by Gray just a few years prior. The only species included by Albers (1850) in the new genus was Ophiogyra polygyrata . Thus, Ophiogyra is an objective junior synonym of Polygyratia .