Abstract
Flabellirhynchia australensis n.sp. is described from two localities in eastern Ellsworth Land, Antarctica. At one locality it is associated with Middle Bajocian ammonites. Its position in Flabellirhynchia is based on comparison with F. concinna Crickmay. Another rhynchonellid, closely allied to Rhactorhynchia or Cymatorhynchia, is also recorded.