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| an alternative name for the invertebrate phylum Coelenterata, giving emphasis to the stinging structures as characteristic of the phylum. |
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| the phylum comprising the comb jellies. |
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| the explosive cell containing one giant secretory organelle or cnidae that define the phylum Cnidaria |
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| an organ in coelenterates consisting of a minute capsule containing an ejectable thread that causes a sting. |
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| a sedentary type of animal form characterized by a more or less fixed base, columnar body, and free end with mouth and tentacles, especially as applied to coelenterates. |
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| a saucer-shaped or dome-shaped, free-swimming jellyfish or hydra. |
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| a prominence that develops into a new individual, sometimes permanently attached to the parent and sometimes becoming detached; gemma. |
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| asexual reproduction by division into segments, as in tapeworms and jellyfishes |
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| a hairlike sensory process projecting from the surface of a cnidoblast, believed to trigger the discharge of the nematocyst. |
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| a segment, bone, cell, etc., resembling a handle. |
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| The expanded basal portion of the stalk of certain sessile organisms |
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| any of several parts or organs of the mouth, as the labrum of a crustacean. |
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| functions in both digestion and the distribution of nutrients and particles to all parts of the body |
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| one of the classes of c[oe]lenterates, including the Hydroidea, Discophora, and Siphonophora. |
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| The class of the C[oe]lenterata which includes the corals and sea anemones. The three principal groups or orders are Acyonaria, Actinaria, and Madreporaria. |
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| coelenterates in which the polyp stage is absent or at least inconspicuous: jellyfishes |
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| Box jellyfish; are cnidarian invertebrates distinguished by their cube-shaped medusae. |
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| an anatomical structure of "true" sea jellies (or Scyphozoans), which belong to the class Scyphozoa. |
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| any of various slender, flexible processes or appendages in animals, especially invertebrates, that serve as organs of touch, prehension, etc.; feeler. |
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| any of various symbiotic yellow-green or yellow–brown algae in the cytoplasm of certain radiolarians and marine invertebrates. |
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| Formed by plates of closely-spaced cilia that are fused at the bases, comb rows beat in a wave pattern that moves from the aboral to the oral end. |
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| triggers the comb next in line to begin its stroke, which in turn leads to a sequential succession of strokes to form the wave |
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| opposite to or away from the mouth. |
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| of, pertaining to, or involving the mouth |
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| a gelatinous layer of cells in the body wall of some coelenterates and ctenophores. |
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| an opening through which eggs or sperm are released, especially in invertebrates. |
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| a structure found in many cold-blooded organisms and soft-bodied animals consisting of a fluid-filled cavity |
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| found adjacent to the seminiferous tubules in the testicle. They produce testosterone. |
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| pertaining to or affecting both nerves and muscles. |
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| of or pertaining to an epithelial cell of a coelenterate that contains contractile fibrils and acts as a muscle. |
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