Mollusca (Phylum) > Gastropoda (Class) > Neritimorpha (Subclass) > Cycloneritida (Order) > Hydrocenoidea (Superfamily) > Hydrocenidae (Family)
Hydrocenidae | |
Genus: Georissa | map > |
Georissa purchasi (Pfeiffer, 1862) Height 2mm, Width 1mm, Land North and South Islands, and Three Kings Islands |