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.
Austromegabalanus nigrescens (Lamarck, 1818)
|Classification:||Arthropoda (Phylum) > Crustacea (Subphylum) > Hexanauplia (Class) > Thecostraca (Subclass) > Sessilia (Order) > Balanidae (Family) > Austromegabalanus (Genus)|
Note: Localities are approximate, and represent only some of the known localities for the species.