remus, echoscope, macartney, nuwc, litron, nekton, funa, micrologic, subocean, terma, ontic, gyrocompass, septentrio, porifera, relume, inertial navigation system, kazak, energid, integrant, asterion, aegir, blueshift, orthogon, heptagon, belimed, sonobuoy, smit, echo sounder, etas, submersible, adventus, amarantus, aeromechanical, evolvent, scandent, alveolus, fluxion, pipelayer, ignis, boatbuilder, goosander, quickset, xer, interpoint, skyjack, bathyscaphe, minesweeping, reflectent, forerun, nautic, sounding rocket, auspex, biocentric, microphage, histogen, clavis, discoverture, sikorsky, nodality, aerometric, biokinetics, tessella, nereus, logistic support, ceyx, amphion, stylemark, deme, auriga, synectics, apel, surface ship, sunseeker, skysail, squalus, thorite, workboat, offshore rig, towage, aerodyne, basen, nuclear propulsion, algor, oceanographic, implex, mxl, dowl, megadyne, arium, bavaria, millipore, talaria, ichor, scotian, wiss, csel, flying colours, trema, marum, sigmatron, transfreight, conoscenti, hydroids, alga, flagellates, corals, protozoan, algae, amoebae, anemones, bivalve, protozoans, arthropods, ciliates, copepods, diatoms, dinoflagellates, fossils, gastropods, invertebrate, invertebrates, lichens, crinoid, multicellular, sessile, bisexual, anthropoid, asexual, celled, polyp, swimming, assimilated, comatose, crustacean, depressed, exploited, inbred, jellyfish, mesomorphic, planktonic, anemic, annelid

hydra, sertularian, siphonophore

class hydrozoa, genus sertularia, hydrozoa, sertularia

cnidarian, coelenterate

hydrozoan