Rhopalotrema: Didymozoidae), a new genus from Australian platycephalid fishes (Digenea: Didymozoidae), a new genus from Australian platycephalid fishes

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Abstract

Rhopalotrema n. g. is erected to accommodate two new species of didymozoid collected from platycephalid fishes from South-east Queensland, Australia and is assigned to the subfamily Didymozoinae. Rhopalotrema elusiva n. sp. is described from the fins of Platycephalus fuscus and R. pterygionastes n. sp. is described from the fins of P. indicus. The new genus is similar to Neometadidymozoon, but is distinguished from it by the structure of the testes, which are convoluted and extend from near the anterior end of the hindbody to a point only a short distance into the forebody. The two new species are distinguished from each other by their size and the size and shape of the oral sucker and pharynx.

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