Children (11 direct children, 11 direct and indirect children):
Arcinella arcinella
Arcinella cornuta
Arcinella brasiliana
Arcinella californica
Arcinella carinata
Arcinella cruda
Arcinella hawaiensis
Arcinella laysana
Arcinella sandalina
Arcinella spinosa
Arcinella thaanumi