The status of this name is currently under review by the ICZN (case 3267). This is the commercial marron, originally endemic to southwestern Western Australia, but widely used in aquaculture in southern Australia and now feral in many areas. Previously known as Cherax tenuimanus, this name has been shown to apply only to a small population from the Margaret River (Austin & Ryan 2002), and the main commercial marron now has the new name C. cainii. Recent work has shown high hybridization rates between the two, and cast doubt their status as distinct species (see de Graaf, Lawrence & Vercoe, 2009, Crustaceana, 82:1469-1476).
Austin, C.M., Ryan, S.G., 2002. Allozyme evidence for a new species of freshwater crafish of the genus Cherax Erichson (Decapoda: Parastacidae) from the south-west of Western Australia., Invertebrate Systematics, Vol. 16: 357-367.