Children (11 direct children, 11 direct and indirect children):
Bathyacmaea jonassoni
Bathyacmaea nipponica
Bathyacmaea secunda
Bathyacmaea subnipponica
Bathyacmaea tertia
Bathyacmaea lactea
Bathyacmaea becki
Bathyacmaea austrina
Bathyacmaea brevidentata
Bathyacmaea kanesunosensis
Bathyacmaea kimberleyae