Bivalvia | ... | Unionidae | Unioninae | Unionini | Unionina | Unio mancus
Locard, 1889. Contr. Faune Malacol. Franc. 13: 157 [51], footnote. [nomen nudum]
(intro'd as intra-sp. of Unio requienii Michaud, 1831; homonym of Unio elongata Lamarck, 1819)
= Unio (Requieniana) requieni var. elongata Loc. — Locard, 1889: 157.