nominal species Unio dugasti Morlet, 1892
 Morlet, 1892, J. de Conch. 40: 86.
Morlet, 1893, J. de Conch. 41: 156, pl. 6, fig. 4.
Type(s): FIGURED SYNTYPE MNHN_MP_0043, [no locality available - Asia].
= Ensidens sagittarius Taxonomic Opinions
+ Ensidens ingallsianus Lea, 1852 — (IUCN, 2012)
= Ensidens ingallsianus dugasti — (Kittivorachate & Yangyuen, 2004)
= Ensidens ingallsianus dugasti (Morelet, 1892) — (Brandt, 1974)
+ Ensidens (s.s.) sagittarius (Lea, 1856) — (Haas, 1969)
+ Nodularia (s.s.) sagittaria (Lea, 1856) — (Simpson, 1914)
+ Ensidens (s.s.) sagittarius (Lea, 1856) — (Haas, 1913)
+ Unio (Nodularia) sagittarius Lea — (Dautzenberg & Fischer, 1908)
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