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Nacellidae (limpets)

Nassariidae – Nassariinae (mud-snails)

Naticidae – Naticinae (necklace-shells and sand-snails)

Naticidae – Sininae (sinum-snails)

Neilonellidae (neilo-clams)

Neoleptonidae (neolepton-clams)

Neritidae – Neritinae (nerites)

Newtoniellidae – Ataxocerithiinae (false-creepers)

Newtoniellidae – Eumetulinae (false-creepers)

Nucinellidae (nucinellid-clams)

Nuculanidae – Ledellinae (nut-shells)

Nuculanidae – Nuculaninae (nut-shells)

Nuculidae (nutlet-shells)