Euzetia occultum n. g., n. sp (Euzetiinae n. subf.), a monocotylid monogenean from the gills of Rhinoptera neglecta (Rhinopteridae) from Moreton Bay,Queensland, Australia

Euzetia occultum n. g., n. sp. (Monogenea: Monocotylidae) is described from the gills of the Australian cownose ray Rhinoptera neglecta Ogilby collect ed in Moreton Bay, Queensland, Australia. Euzetia has one central and ten p eripheral loculi, which is similar to species in Decacotyle Young, 1967. Ho wever Euzetia is distinguished from other genera in the family by the prese nce of an additional loculus on either side of the central loculus. Because Euzetia does not fit into any of the six existing subfamilies in the Monoc otylidae Taschenberg, 1879, as currently recognised, we propose the Euzetii nae n. subf. to accommodate the new genus. Euzetia occultum is described an d illustrated fully. This is the first published record of a monocotylid fr om a species of Rhinoptera Cuvier.