AN ELECTROPHORETIC COMPARISON OF PHYSALOPTERA-RUDOLPHI, 1819 (NEMATODA, PHYSALOPTERIDAE) FROM 2 SPECIES OF AUSTRALIAN BANDICOOT (MARSUPIALIA, PERAMELIDAE)

An electrophoretic study was conducted on nematodes of the genus Physa loptera that occur in the stomachs of two species of Australian bandic oot, Perameles nasuta and P. gunnii. Each nematode was genetically cha racterised at 28 enzymes encoding a presumptive 30 loci. No fixed gene tic differences were detected between the nematodes in P. gunnii from two localities. A comparison of nematodes from the two host species, h owever, revealed fixed genetic differences at 15 (50%) loci. This sugg ests that each host species is infected by a different species of Phys aloptera.