Pneumatophore, [300] f., [307] f.

Pneumatopyles, [309]

Pneumotaxy, [23]

Pocillon, [223]

Pocillopora, [375], [402], [402];

P. septata, [402]

Pocilloporidae, [401]

Podium, [428];

of Ophiothrix fragilis, [479] f., [487];

of Holothuria nigra, [561];