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.
Chamaesipho columna (Spengler, 1790)
|Classification:||Arthropoda (Phylum) > Crustacea (Subphylum) > Hexanauplia (Class) > Thecostraca (Subclass) > Sessilia (Order) > Chthamalidae (Family) > Chamaesipho (Genus)|
|Distribution:||Intertidal on open coasts|
Note: Localities are approximate, and represent only some of the known localities for the species.