Some Monogenoideans of the Family Diplectanidae Bychowsky, 1957 from Australian Teleost Fishes

Abstract

1. Four new species of the genus Diplectanum Diesing, 1858 are described. These are D. cupatum sp.nov. from the gills of both Epinephelus merra Bloch and E. fasciatus (Forskål), D. plectropomi sp.nov. from the gills of Plectropomus maculatus (Bloch), D. summanae sp. nov. from the gills of E. summana (Forskål), and D. vagampullum sp.nov. from the gills of E. merra Bloch. 2. Latericaecum gen.nov. and Monoplectanum gen.nov. are proposed to contain L. pearsoni sp.nov. and M. australis sp.nov. collected from the gills of Sphyraena obtusata Cuvier & Vallenciennes and Sillago ciliata respectively. Calydiscoides gen.nov. is proposed to contain C. australis sp.nov. from the gills of Lethrinus chrystostomu Richardson together with C. difficilis (Yamaguti, 1953) comb.nov., C. duplicostatus (Yamaguti, 1953) comb.nov. and C.flexuosus (Yamaguti, 1953) comb.nov. 3. Lepidotrema angusta (Johnston & Tiegs, 1922) Price, 1937 and L. bidyana Murray, 1931 are redescribed from fresh materials from the type hosts and the generic diagnosis is emended from a study of these specimens, new specimens of L. tenue Johnston & Tiegs, 1922, and named material of L. therapon Johnston & Tiegs, 1922.