PREPTETOS AND NEOPREPTETOS (DIGENEA, LEPOCREADIIDAE) FROM AUSTRALIAN MARINE FISHES

The genera Preptetos Pritchard, 1960 and Neopreptetos Machida, 1982 ar e redefined. The following species are described and/or recorded from marine fishes. From the Great Barrier Reef: Preptetos caballeroi Pritc hard, 1960 in Naso annulatus, N. brevirostris and N. vlamingii; P. xes uri (Yamaguti, 1940) in Zebrasoma veliferum and Z.scopas; Preptetos ca nnoni Barker, Bray et Cribb, 1993 in Siganus doliatus and S. fuscescen s; Preptetas luguncula sp. n. in Naso unicoris (type-host); P. impar s p. n. in Lutjanus erythropterus (type-host) and L. malabaricus; Neopre ptetos arursettae Machida, 1982 in Pomacanthus semicirculatus; and N. kurochkini (Toman, 1989) in Chaetodontoplus meredithi. From southweste rn Australia: Preptetos rotto sp. n. in Nelusetta ayraudi (type-host), Neosebastes pandus, Oplegnathus woodwardi and Pagrus auratus. The new combination Preptetos trulla (Linton, 1907) (originally Distormum the n Lepocreadium) is made and the species Lepocreadium areolatum (Linton , 1900) is considered likely to belong in Preptetos.