Clipart images of corals and sea anemone in the phylum cnidiria. They attach themselves to the bottom using an adhesive 'foot', called a basal disc.
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Hydra
Longitudinal section of a hydra. ... |
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Hydra
Cross section of a hydra. ... |
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Hydra
Stinging cells of hydra, highly magnified. Cell containing thread capsule.... |
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Hydra
Stinging cells of hydra, highly magnified. Thread capsule partly discharged.... |
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Hydra
Stinging cells of hydra, highly magnified. Thread capsule fully discharged.... |
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Hydra
"Nettling cells of Hydra. A, unexploded; B, exploded; b, barbs; c, the nettling cell in which the nettling organ is developed; cn., the cnidocil or "trigger"; cp., the capsule or nettling organ; f, th... |
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Hydra
"Hydra hanging from water-weed." -Thomson, 1916... |
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Hydra
"A, Longitudinal section through the body of Hydra (diagrammatic). B, small portion of the wall more highly magnified. b, bud; ect., ectoderm; ent., entoderm; f, foot; fl., flagellum; g.v., gastro-vas... |
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Hydra or Freshwater Polyp, The Digestive Apparatus of a
In Radiata the digestive cavity is a pouch with a single opening, into which the food is passed and from which the residuum is ejected, as in the Hydra.... |
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Hydra Vividis
"Hydra vividis. ov, ovary; te, testis." — Encyclopedia Britannica, 1893... |
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Hydra, section of a
"Longitudinal section of a Hydra; b, bud which will form a young one; ba, base by which it is attached when not creeping." — Davison, 1906... |
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Hydractina Echinata
"Hydractina Echinata. c, the canosarc, forming an incrustation over the object on which it lives; n, nutritive polyps; r, reproductive polyps, bearing buds in which are ova; t, tentacles." — Gal... |
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Hydractinia
"Diagram of a colony of Hydractinia, showing four forms of persons. a, hydriform person; b, modified hydriform person, or blastostyle, bearing c, degenerate medusiform persons or sporosacs; d, modifi... |
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Hydractinia
"Colony of Hydractinia on back of a Buccinum shell tenanted by a hermit-crab." -Thomson, 1916... |
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Hydrazoan Polyp
"Diagram of a typical Hydrozoan polyp. EC., Ectoderm; EN., endoderm; C., the cavity of the gut (coelenteron); G., a reproducive bud; T., a tentacle; H., hypostome or oral cone; M., mouth." -Thomson, 1... |
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Hydroid
"Diagram of a gymnoblastic Hydroid. a., Stem; b., root; c., gut cavity; d., endoderm (dark); e., ectoderm; f., horny perisarc; g., hydra-like "person" (hydranth); g'., the same, contracted; h., hypost... |
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Hydroid Blastula
"A, blastula in which the entoderm (ent.) is produced by proliferation from ectoderm (ect.)." -Galloway, 1915... |
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Hydroid Colony
"A. A small piece of hydroid colony. p., Perisarc; m., medusoid bud; h., hydranth or polyp head." -Thomson, 1916... |
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Hydroid Planula
"B, ciliated planula formed by the continuance of this process. A split in the entoderm furnishes the beginning of the gastro-vascular cavity (g) of the adult." -Galloway, 1915... |
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Hydroid Planula, Mature
"C, more mature condition, in which the planula has become fixed: f, foot or attached end; o, oral or free end at which the tentacles and mouth will be developed." -Galloway, 1915... |
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Hydroid, Campanularian
"Hydroids. IV A. Campanularian. IV B. A fragment enlarged, showing stalked hydrothecae (H.), a gonotheca (G.); C., the coenenchyma; P., the perisarc; S., a stalk." -Thomson, 1916... |
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Hydroid, Campanularian
"Campanularian Hydroid. H., Hydrotheca or polyp-cup; HY., hydranth, or polyp-head; G., gonotheca, enclosing a reproductive polyp producing medusoid buds; M., a liberated medusoid; ST., basal stolon." ... |
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Hydroid, Plumularia
"Hydroids. III A. Plumularia. III B. A fragment enlarged, showing hydrothecae (H.) on one side of each twig, an axillary gonotheca (G.) and minute nematophores." -Thomson, 1916... |
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Hydroid, Sertularia
"Hydroids. II A. Piece of Sertularia. II B. A fragment enlarged, showing sessile hydrothecae (H.) on both sides of the twigs." -Thomson, 1916... |
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Hydroid, Tubularia
"Hydroids. I. Tubularia." -Thomson, 1916... |