Bivalvia | Cardiida | Cardioidea | Cardiidae | Didacna protracta

nominal species Adacna protracta Eichwald, 1841

Adacna protracta Eichwald, 1841 = Didacna protracta

Eichwald, 1829. Zool. Spec. Rossiae 1: 283, pl. 5, fig. 9 [as ‘Cardium protractum’].
Eichwald, 1841. Nouv. Mém. Soc. Imp. Nat. Moscou 7: 280, pl. 40, figs. 10-11.

Taxonomic Opinions

= Didacna protracta (Eichwald, 1841) — Wesselingh et al., 2019: 48.

= Didacna protracta (Eichwald, 1841) — Vinarski & Kantor, 2016: 72.

= Didacna protracta protracta (Eichwald, 1841) — Kantor et al., 2010: 283.

= Didacna protracta (Eichwald, 1841) — Zhadin, 1965: 294, fig. 324.

+ Cardium catillus Eichw. — Grimm, 1877: 58.