Bivalvia | Sphaeriida | Sphaerioidea | Sphaeriidae | Sphaeriinae | Sphaerium ryckholtii

nominal species Cyclas stricta Normand, 1854

Cyclas stricta Normand, 1854 = Sphaerium ryckholtii

Normand, 1854. Cycl. Dépt. Nord. 5: 3.

Taxonomic Opinions

= Musculium (s.s.) strictum (Normand, 1854) — Vinarski & Kantor, 2016: 96.

= Musculium strictum (Normand, 1854) — Kantor et al., 2010: 297.

+ Sphærium ryckholtii Normand, 1844 — Prime, 1895: 44.

+ Sphærium ryckholtii Normand — Prime, 1870: 157.