Crustacea, Decapoda, Axiidea, Thalassinidea, Axiidae, Acanthaxius, Allaxius, Ambiaxius, Australocaris, Axiopsis, Bouvieraxius, Calastacus, Calaxius, Dorphinaxius, Eiconaxius, Michelaxiopsis, Oxyrhynchaxius, Pilbaraxius, Paraxiopsis, Planaxius, Platyaxius, Scytoleptus, taxonomy, new genus, new species