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nominal species Unio pictorum var. niger de Joannis, 1859

Unio pictorum var. niger de Joannis, 1859 = Unio tumidus

de Joannis, 1859. Ann. Soc. Linn. Maine-et-Loire 3: 294, pl. 12, fig. 2.
(intro'd as intra-sp. of Mya pictorum Linnaeus, 1758; homonym of Unio (Elliptio) nigra Rafinesque, 1820)

= Unio tumidus

Taxonomic Opinions

+ Unio (s.s.) tumidus Retzius, 1788 — Vinarski & Kantor, 2016

+ Unio tumidus tumidus Retzius, 1788 — Haas, 1969

+ Unio tumidus tumidus Retzius, 1788 — Haas, 1940

+ Unio tumidus Philippson — Germain, 1931

= Unio (Rostratiana) niger de Joannis, 1858 — Germain, 1904

= Unio (Groupe de l’U. maximus) niger de Joannis — Locard, 1893

= Unio (pictorum var.) niger Joannis — Westerlund, 1890

= Unio (Rostratiana) niger de Joannis — Locard, 1889

= Unio (Groupe de l’U. rostratus) niger de Joannis — Locard, 1882

= Unio pictorum var. niger Nobis — de Joannis, 1859