Taxonomic revision of the rudist bivalve genus Joufia Boehm (Hippuritida, Radiolitidae), Upper Cretaceous, Mediterranean Tethys

The rudist genus Joufia Boehm is characterized by radially oriented canals within the calcitic outer shell layer of the left valve. The type species, J. reticulata, has multiple rings of canals. However, a single ring of such canals is observed in the left valves of some other nominal radiolitid genera. One such is Kuehnia serbica Milovanovic?, recognized herein as a species of Joufia, to which we also re-assign Parasauvagesia cappadociensis Cox.