| Keywords:
cnidarians, hydrozoans, hydroida, athecata, capitata, velellidae,
blue sea stars, tentacles, gastrozooids, nematocysts, colony,
zooxanthellae, mollusca, gastropoda, gastropods, opisthobranchia,
nudibranchia, nudibranchs, cerata, marine biology, predators,
pleuston, macroplankton, surface drifters |