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nominal species Unio pictorum var. compressus de Joannis, 1859

Unio pictorum var. compressus de Joannis, 1859 = Unio mancus

de Joannis, 1859. Ann. Soc. Linn. Maine-et-Loire 3: 295, pl. 12, fig. 7.
(homonym of Unio compressus Sowerby, 1829; intro'd as intra-sp. of Mya pictorum Linnaeus, 1758; renamed Unio joannisi Locard, 1882)

Taxonomic Opinions

+ Unio requieni Michaud — Germain, 1931: 737.

+ Unio (Joannisiana) joannisi Bourguignat in Locard, 1882 — Germain, 1904: 274.

+ Unio (Joannisiana) joannisi Bourguignat in Locard — Locard, 1889: 163.

+ Unio (Groupe de l’U. Gallicus) joannisi Bourguignat, 1880, Mss. — Locard, 1882: 296.

= Unio pictorum var. compressus Nobis — de Joannis, 1859: 295, pl. 12, fig. 7.