Verrucella and Ophiurid, [357];
Pteroeides and Crab, [361];
Ptilosarcus and Hydroid, [361];
Zoantharia and Zooxanthellae, [373] f.;
Adamsia and hermit crabs, [377], [381];
Melia and Sea-anemone, [378];
Stoichactis and Amphiprion, [378];
Pocilloporidae and Hapalocarcinus, [402];
in Zoanthidae, [405]
—see also Zoochlorella, Zooxanthella