Two new lepidapedine lepocreadiids, Austroholorchis procerus sp. n. and Lepidapedella sillaginodesi gen. n., sp. n., are described from the teleost Sillaginodes punctata taken near Kangaroo Island, South Australia. Austroholorchis procerus is distinguished from its congeners by its elongate shape, the extent of the vitelline fields, the confluence of vitelline fields between the testes and the length of the hindbody. Lepidapedella sillaginodes is distinguished from most lepidapedine genera by the delimited external seminal vesicle (also interpretable as the proximal part of a bipartite cirrus-sac). The new genus is distinguishable from its closest relative, Lepidapedon, by the narrow internal male duct, the position of the ovary adjacent to the ventral sucker, by muscular features associated with the metraterm and the distribution of the uterus. Some general features of digenean parasites in sillaginid fishes are discussed.
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