Dicrocoeliidae (Trematoda: Digenea) of Australian mammals with description of Dicrocoelium antechini n.sp., Athesmioides aiolos n.g., n.sp. and Platynosomum burrman n.sp. Systematic Parasitology, 21(3) 1992: 211-222. 212 [Zoological Record Volume 129]