Bivalvia | ... | Unionidae | Unioninae | Unionini | Unionina | Unio crassus

nominal species Unio diptychus Bourguignat in Locard, 1889

Unio diptychus Bourguignat in Locard, 1889 = Unio crassus

Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 143 [37], 201 [95].
‘Surault’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 169.
Type(s): POSSIBLE SYNTYPE MNHN_22192, La Loire à Ingrandes.

Taxonomic Opinions

+ Unio crassus Philipsson in Retzius, 1788 — Lopes-Lima et al., 2024: suppl. append. 2, p. 7.

+ Unio crassus batavus (Maton & Rackett, 1807) — Haas, 1969: 50.

+ Unio crassus batavus (Maton & Rackett, 1807) — Haas, 1940: 131.

+ Unio batavus Maton et Rackett — Germain, 1931: 727.

+ — Simpson, 1914.

= Unio (Batavusiana) diptychus Surrault in Locard, 1889 — Germain, 1904: 258.

= Unio (Groupe de l’U. batavus) diptychus Surrault — Locard, 1893: 169.

= Unio diptychus (Surrault) Locard, 1889 — Westerlund, 1890: 78.

= Unio (Batavusiana) diptychus Surrault, Nov. sp. — Locard, 1889: 143.