Bivalvia | ... | Unionidae | Gonideinae | Rectidentini | Contradentina | Lens lugens

Drouët & Chaper, 1892. Mém. Soc. Zool. France 5: 148, pl. 5, figs. 4-6.
Drouët, 1893. J. de Conch. 41: 43.
Type(s): SYNTYPES MNHN_IM_2000-1774, Borneo.
+ Lens lugens (Drouët & Chaper, 1892), comb. nov. — Pfeiffer et al., 2021
+ Contradens ascia (Hanley, 1856) — Haas, 1969
= Contradens ascia sacellus [sic] (Drouet & Chaper, 1892) — Haas, 1924
= Nodularia (s.s.) sacellus [sic] (Drouet & Chaper, 1892) — Simpson, 1914
= Contradens dimotus saccellus (Drouet & Chaper, 1892) — Haas, 1913
= Nodularia (s.s.) sacellus [sic] (Drouet & Chaper, 1892) — Simpson, 1900
= Unio saccellus Drouet et Chaper — Drouët, 1894
= Unio saccellus Drouet et Chaper — Drouët & Chaper, 1892