. . . . "Unio littoralis var. umbonatus" . "930087" . _:b76571251 . _:b76571251 "1067486" . _:b76571251 "WoRMS id" . . "Rossm\u00E4ssler, 1844" . . "1067486" . _:b76571251 . "Unio littoralis var. umbonatus Rossm\u00E4ssler, 1844" . "Unio littoralis var. umbonatus" . _:b76571251 . . . . .