Calloria inconspicua (G.B. Sowerby II, 1846)
This is not a Mollusc. Other non-Molluscan Phyla (Echinodermata, Brachiopoda etc) have been included to help identify species that may be mistaken for Mollusca, but actually are not.
Brachiopoda (Phylum) > Rhynchonellata (Class)
> Terebratulida (Order)
> Terebratellidae (Family)
> Calloria (Genus)
Throughout New Zealand, including Chatham Islands, 0-40 metres