Photo 3080018, (c) memopob, some rights reserved (CC BY-NC), uploaded by memopob

Attribution © memopob
some rights reserved
Uploaded by memopob memopob
Source iNaturalist NZ
Associated observations

Photos / Sounds

Observer

memopob

Date

February 29, 2016

Place

Anapai Bay (Google, OSM)

Description

Distinguishable by having one twin rib which is always prominent on the periphery of the shell. Glossy purple-brown interior.
These are air breathing pulmonates living high in the intertidal zone.
Very common.

Sizes