 In both instances, there is not enough material currently to erect species.Stiff-tailed ducks dominate the fauna with "Manuherikia lacustrina", "M. minuta", "M. douglasi", "Dunstanneta johnstoneorum" and a further undescribed species of "Manuherikia".Only one species of shelduck "Miotadorna sanctibathansi", though common, was present in the St Bathans fauna.