A new genus and species of eusirid amphipod, Haliogeneia crosnieri, is described from south-eastern Australia. It appears to be most closely related to the southern temperate and subantarctic genus Gondogeneia J. L. Barnard, 1972. Haliogeneia crosnieri n. sp. has highly modified gnathopods and has only been found in association with the abalone Haliotis rubra Leach.
Crustacea, Amphipoda, Eusiridae, Haliogeneia, new genus, new species, commensal, Mollusca, Gastropoda, Haliotis, temperate Australia.