Posticobia norfolkensis

Posticobia norfolkensis is an extinct species of freshwater snail, an aquatic gastropod mollusc in the family Tateidae. This species was endemic to Norfolk Island.

Posticobia norfolkensis
Conservation status
Extinct  (IUCN 2.3)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Family:	Tateidae
Genus:	Posticobia
Species:	†P. norfolkensis
Binomial name
†Posticobia norfolkensis (Sykes, 1900)