title: A new species of Halacarsantia Wolff, 1989 (Crustacea, Isopoda, Asellota, Santiidae) from Wistari Reef, southern Great Barrier Reef, Australia.
abstract: Halacarsantia acutasp. n. is described from Wistari Reef, Capricorn Group, southern Great Barrier Reef, the first record of the genus from Australia. The new species differs from its congeners in having antenna flagellum composed of 8 articles; epipod apically acute, without setae, broad maxilliped endite and pereopod 1 basis with a short projection. A key to species of the genus is provided.
authors.affiliation: Kitakyushu Museum of Natural History and Human History, Kitakyushu 805-0071 Kitakyushu, Japan.
authors.forename: Michitaka
authors.initials: M
authors.lastname: Shimomura
authors.forename: Niel L
authors.initials: NL
authors.lastname: Bruce