Chamaesipho brunnea Moore, 1944
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 are not.
Arthropoda (Phylum) > Crustacea (Subphylum) > Hexanauplia (Class) > Thecostraca (Subclass) > Sessilia (Order) > Chthamalidae
(Family) > Chamaesipho
(Genus) > brunnea (Species)
North Island and Chatham Islands
Marine, Endemic, In spray zone on the open coast