Bivalvia | ... | Unionidae | Unioninae | Unionini | Unionina | Unio crassus
Colbeau, 1868. Ann. Soc. Malac. Belgique 3: 106, pl. 4, fig. 3.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807)
= Unio (sec. Hyridella) batavus vr. belgicus Colb. — Paetel, 1890
+ Unio batavus var. incurvatus Colb. — Westerlund, 1890
+ Unio (Groupe de l’U. crassus) incurvatus Colbeau — Locard, 1882
= Unio batavus var. belgicus J. Colb. — Colbeau, 1868