octopus, club pygmy (Octopus warringa)
octopus, football (Ocythoe tuberculata)
octopus, frilled pygmy (Octopus superciliosus)
octopus, gloomy (Octopus tetricus)
octopus, Maori (Octopus maorum)
octopus, pale (Octopus pallidus)
octopus, pelagic (Amphitretus pelagicus)
octopus, persephone (Opisthoteuthis persephone)
octopus, pluto (Opisthoteuthis pluto)
octopus, southern blue-ringed (Hapalochlaena maculosa)
octopus, southern keeled (Octopus berrima)
octopus, southern sand (Octopus kaurna)
octopus, southern white-spot (Octopus bunurong)
olive, Brazier’s (Belloliva brazieri)
olive, Edith’s (Amalda edithae)
olive, margined (Amalda marginata)
olive, nymph (Cupidoliva nympha)
olive, oblong (Amalda oblonga)
olive, obtuse (Amalda obtusa)
olive, spindle-shaped (Amalda petterdi)
olive, wheat (Belloliva triticea)
olive, white-zoned (Belloliva leucozona)
orbitestellid, bluish (Microdiscula charopa)
orbitestellid, Iredale’s (Orbitestella iredalei)
orbitestellid, May’s (Orbitestella mayi)
otter-shell, common (Lutraria rhynchaena)
oyster, Pacific (Crassostrea gigas)