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Besides several small, marine groups, the phylum of molluscs (Mol- lusca) contains three large, well-known classes, that of the
Unparalleled disjunction or unexpected relationships? Molecular phylogeny and biogeography of Melanopsidae (Caenogastropoda: Cerithioidea), with the description of a new family and a new genus from the ancient continent Zealandia - Neiber -