Diagnosis. (After Watling, 1991). Carapace anteroventral corner rounded or subacute; ocular lobe medially, incompletely subdivided; pseudorostral lobes separated; antenna 1 peducnle article 2 process missing; uropodal peduncle longer than pleonite 6.
Remarks. This is the first mention of the genus from Australia, previously known from deep waters of both sides of the Atlantic, Indian Ocean (South African coast) and Antarctica. Two new species present in Australian Museum collection are added to the five already known.