Cnidarians, BOX-ZOA

The phylum Cnidaria is made up of more than 9,000 living species, mostly marine animals. Corals, jellyfish, sea anemones, and sea fans are all cnidarians.
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Cnidarians Encyclopedia Articles By Title

box jellyfish
box jellyfish, (class Cubozoa), any cnidarian (or coelenterate) belonging to the class Cubozoa. The class is made......
Cassiopea
Cassiopea, genus of marine jellyfish constituting the order Rhizostomeae (class Scyphozoa, phylum Cnidaria) and......
Chrysaora
Chrysaora, genus of marine jellyfish of the class Scyphozoa (phylum Cnidaria) that is found in all temperate and......
cnidarian
cnidarian, any member of the phylum Cnidaria (Coelenterata), a group made up of more than 9,000 living species.......
coral
coral, any of a variety of invertebrate marine organisms of the class Anthozoa (phylum Cnidaria) that are characterized......
Cystiphyllum
Cystiphyllum, extinct genus of solitary corals found as fossils in Silurian and Devonian marine rocks (the Silurian......
Favosites
Favosites, extinct genus of corals found as fossils in marine rocks from the Ordovician to the Permian periods......
freshwater jellyfish
freshwater jellyfish, any medusa, or free-swimming form, of the genus Craspedacusta, class Hydrozoa (phylum Cnidaria).......
Gonionemus
Gonionemus, genus of small marine hydrozoans (order Limnomedusae, phylum Cnidaria). The conspicuous jellyfish stage......
Halysites
Halysites, extinct genus of corals found as fossils in marine rocks from the Late Ordovician Period to the end......
Heliophyllum
Heliophyllum, genus of extinct coral found as fossils in Devonian marine rocks (the Devonian Period began 416 million......
horn coral
horn coral, any coral of the order Rugosa, which first appeared in the geologic record during the Ordovician Period,......
Hydra
Hydra, genus of invertebrate freshwater animals of the class Hydrozoa (phylum Cnidaria). The body of such an organism......
Hydractinia
Hydractinia, genus of marine hydrozoan polyps (phylum Cnidaria), a group of invertebrate animals with a thin tubelike......
hydroid
hydroid, any member of the invertebrate class Hydrozoa (phylum Cnidaria). Most hydroids inhabit marine environments,......
immortal jellyfish
immortal jellyfish, (Turritopsis dohrnii), species of tiny, translucent, jellyfish-like invertebrate animals of......
Irukandji jellyfish
Irukandji jellyfish, any of at least 16 species of box jellyfish (class Cubozoa) known for their transparency,......
jellyfish
jellyfish, any planktonic marine member of the class Scyphozoa (phylum Cnidaria), a group of invertebrate animals......
lion’s mane jellyfish
lion’s mane jellyfish, (Cyanea capillata), marine jellyfish of the class Scyphozoa (phylum Cnidaria) found in the......
Liriope
Liriope, genus of small marine jellyfish of the class Hydrozoa (phylum Cnidaria). Its medusoid body is characteristically......
Lophophyllum
Lophophyllum, extinct genus of solitary marine corals found as fossils especially characteristic of the Late Carboniferous......
medusa
medusa, in zoology, one of two principal body types occurring in members of the invertebrate animal phylum Cnidaria.......
millepore
millepore, (Millepora), any of a genus of invertebrate marine animals comprising the order Milleporina (phylum......
moon jelly
moon jelly, (genus Aurelia), genus of marine jellyfish of the order Semaeostomeae (class Scyphozoa, phylum Cnidaria)......
nematocyst
nematocyst, minute, elongated, or spherical capsule produced exclusively by members of the phylum Cnidaria (e.g.,......
Obelia
Obelia, genus of invertebrate marine animals of the class Hydrozoa (phylum Cnidaria). The genus, widely distributed......
organ-pipe coral
organ-pipe coral, (genus Tubipora), any of a genus of marine animals of the class Anthozoa (phylum Cnidaria). The......
planula
planula, free-swimming or crawling larval type common in many species of the phylum Cnidaria (e.g., jellyfish,......
polyp
polyp, in zoology, one of two principal body forms occurring in members of the animal phylum Cnidaria. The polyp......
Portuguese man-of-war
Portuguese man-of-war, (Physalia physalis), species of jellylike marine animals of the order Siphonophora (class......
purple sail
purple sail, (genus Velella), any of a genus of floating marine animals usually classified in the order Siphonophora......
sea anemone
sea anemone, any member of the invertebrate order Actiniaria (class Anthozoa, phylum Cnidaria), soft-bodied, primarily......
sea fan
sea fan, (genus Gorgonia), any member of a genus of invertebrate marine animals of the suborder Holaxonia (class......
sea pansy
sea pansy, any of certain colonial marine animals of the sea pen (q.v.) group (order Pennatulacea, phylum Cnidaria).......
sea pen
sea pen, any of the 300 species of the order Pennatulacea, colonial invertebrate marine animals of the class Anthozoa......
sea whip
sea whip, any of several genera of corals of the order Gorgonacea (phylum Cnidaria), characterized by a long, whiplike......
Streptelasma
Streptelasma, extinct genus of corals, existing as single animals rather than colonial forms and found as fossils......
Stromatoporida
Stromatoporida, extinct order of corals found as fossils in marine rocks of Cambrian to Cretaceous age (542 million......
Tabulata
Tabulata, major division of extinct coral animals found as fossils in Ordovician to Jurassic marine rocks (488......
tube anemone
tube anemone, (genus Cerianthus), any of a group of invertebrate marine animals of the class Anthozoa (phylum Cnidaria)......
zoanthid
zoanthid, any member of the order Zoanthidea, a group of about 300 species of marine animals of the class Anthozoa......