narrow false-turrid (Mitromorpha angusta)
narrow nutmeg-shell (Pepta stricta)
narrowed thracia (Thraciopsis angustata)
narrower tusk-shell (Gadila angustior)
necklace pyramid-shell (Koloonella moniliformis)
needle-like pyramid-shell (Turbonilla acicularis)
nenea turrid (Splendrillia nenia)
nesting mussel (Musculus impactus)
nest-shaped urchin-snail (Melanella cunaeformis)
New Holland cuttlefish (Sepia novaehollandiae)
New Holland spindle-shell (Fusinus novaehollandiae)
New Zealand neilo (Neilo australis)
New Zealand saddle-oyster (Pododesmus zelandicus)
New Zealand screw-shell (Maoricolpus roseus)
New Zealand venus (Venerupis largillierti)
neztalia shipworm (Bankia neztalia)
niceteria top-shell (Carinastele niceteria)
nipple urchin-snail (Melanella mamilla)
nippled false-creeper (Specula mammilla)
nippled sinistral-creeper (Obesula mamillata)
nippled volute (Ericusa papillosa)
nodded siphon-shell (Williamia radiata nutata)
non-southern condyl-clam (Condylocardia notoaustralis)
notched acteon (Acteon retusus)
Novar rice-shell (Alvania novarensis)
nymph olive (Cupidoliva nympha)