"Hattemann, 1859" . . . "Unio crassus courtillieri Hattemann, 1859" . "Unio crassus courtillieri" . . "Unio crassus courtillieri" . _:b75637578 . "163421" . . "Unio crassus courtillieri" . . _:b75637578 "9534182" . . _:b75637578 . _:b75637578 "GBIF id" . _:b75637578 . . . "9534182" .