Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio crassus nominal species Unio litoralis Pfeiffer, 1821
Pfeiffer, 1821, Natur. Deutsch. Land Sussw. Moll. 1: 117, pl. 5, fig. 12.
Rossmässler, 1853, Z. Malak. 10: 92.
Mörch, 1863, Vidensk. Medd. Naturhist. Foren. Kjöben. (17-22): .
(misidentified reference to Unio littoralis Cuvier, 1798; error for Unio littoralis Cuvier, 1798)
= Unio crassus Taxonomic Opinions
+ Crassiana crassa crassa (Philippson in Retzius, 1788) — Kantor et al., 2010
+ Crassiana crassa crassa (Philipsson in Retzius, 1788) — Kantor & Sysoev, 2005
+ Batavusiana (Crassunio) crassa (Philippson, 1788) — Stadnichenko, 1984
+ Margaritana crassa (Retzius, 1788) — Simpson, 1914
+ Margaritana crassa (Retzius, 1788) — Simpson, 1900
+ Unio pseudolitoralis Clessin, 1875 — Westerlund, 1890
+ Unio crassus var. maximus Kobelt, 1872 — Kobelt, 1884
+ Unio batavus var. crassus Retz. — Clessin, 1877
+ Unio batavus var. pseudo-litoralis Clessin — Clessin, 1877
+ Margaron (Unio) litoralis [sic] (Drap.) — Lea, 1870
+ Unio (Lymnium) crassus — Drouët, 1857
+ Unio (Lymnium) crassus Philipss. — Moquin-Tandon, 1855
+ Unio crassus Retz. — Küster, 1854
+ Margaron (Unio) litoralis [sic] (Drap.) — Lea, 1852
+ Margarita (Unio) litoralis [sic] Lam. Pfeif. Des Moul. Grat. — Lea, 1838
+ Margarita (Unio) litoralis [sic] (Lamarck, 1801) — Lea, 1836
+ Unio crassus Retz. — Rossmässler, 1835
+ Unio crassus Retzius, 1788 — Menke, 1830
+ Unio crassus Retzius, 1788 — Menke, 1828
+ Unio crassus Retzius — Nilsson, 1822
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