Helicarionidae
Melloconcha alma (Iredale, 1944)
Melloconcha delecta Iredale, 1944
Melloconcha flavescens (Iredale, 1944)
Melloconcha grata Iredale, 1944
Melloconcha miranda (Iredale, 1944)
Melloconcha prensa Iredale, 1944
Melloconcha rosacea (Iredale, 1944)