Comments on Christian de Muizon's paper: le polyphyletisme des Acrodelphidae, odontocetes longirostres du Miocene europeen. (The polyphyletism of the Acrodelphidae, longirostral Odontoceti of the European Miocene), 1988. Investigations on Cetacea, 22 1989: 378-398. 383 [Zoological Record Volume 126]