Remarks
This genus has been revised by Bowman (1973) and WeigmannÂHaass (1989), and includes three species, with a circumpolar distribution in the Antarctic Ocean. Very little is known about the biology of these species. To what extent adults are parasitic, or commensal, is not known although their morphology suggests a parasitic existence (Laval, 1980). Libertini and Lazzaretto (1993) provide some information on the karyotype morphology of H. dilatata Stebbing, 1888.
Species: Hyperiella antarctica Bovallius, 1887; H. dilatata Stebbing, 1888; H. macronyx (Walker, 1906).