nominal species Unio lagnysicus ‘Bourguignat’ of Authors

Unio lagnysicus ‘Bourguignat’ of Authors = Unio crassus

‘Bourguignat’ of Authors.
Locard, 1889. Contr. Faune Malacol. Franc. 13: 127 [21].
Westerlund, 1890. Fauna Paläarct. Binnenconch. 2(7): 84.
Locard, 1893. Coqu. Eau Douce Saumâtre France: 154.
Dumas, 1895. Rev. Sci. Bourbonnais, Suppl.: 47.
Rochebrune, 1903. Bull. Mus. Nation. Hist. Natur. 9: 389.
Kobelt & Haas, 1910. Icon. Land- und Süssw.-Moll. 17: 37.
(error for Unio lagnisicus Bourguignat in Locard, 1882)