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Sea Urchins and Sea Stars |
Record 51 to 75 of 138 |
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Fossil Echinidea "Archaeocidaris Urii, Flem (spine and intermediate plate); Carboniferous, Ireland." — Encyclopedia Britannica, 1893... |
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Fossil Echinidea "Cidaris glandifera, Goldf (spine); Jura, Mount Carmel." — Encyclopedia Britannica, 1893... |
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Fossil Echinidea "Hemicidaris intermedia, Flem.; Corallian, Calne." — Encyclopedia Britannica, 1893... |
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Fossil Echinidea "Salenia petalifers, Desm., U Greensand, Wilts." — Encyclopedia Britannica, 1893... |
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Fossil Echinidea "Dysaster ringens, Ag., Inferior Oolite, Dorset." — Encyclopedia Britannica, 1893... |
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Fossil Echinidea "Hemipneustes Greenovii, Forbes, U. Greensand, Blackdown" — Encyclopedia Britannica, 1893... |
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Fossil Echinidea "Catopygus carinatus Goldf., U. Greensand, Wilts." — Encyclopedia Britannica, 1893... |
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Fossil Echinidea "Cidaris florigemma, with spine, a, and single ambulacral plate, magnified, b, (after Wright; Coral Rag." — Encyclopedia Britannica, 1893... |
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Fossil Echinidea "Ananchytes ovatus, Lam.; U. Chalk, Europe." — Encyclopedia Britannica, 1893... |
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Fossil Echinidea "Pygaster semisulcatus, Ph.; Inf. Oolite, Cheltenham." — Encyclopedia Britannica, 1893... |
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Fossil Echinidea "Galerites albogalerus, Lam.; U. Chalk, Kent." — Encyclopedia Britannica, 1893... |
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Fossil Echinidea "Scutella subrotunda; Miocene, Malta." — Encyclopedia Britannica, 1893... |
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Jack, five-fingered "In this family the arms appear to be merely prolongations of the disc; they are suaully five in number, and the plates from which the ambulacra are exserted are placed in deep furrows, which run alon... |
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Keyhole-Urchin A sea-urchin very similiar to the Sand Dollar, but has 5 "keyholes" through its shell.... |
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Lily, Sea An ancient crinoid, sea lilies are flowerlike, with branching arms surrounding the central mouth.... |
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Lily, Stone An ancient crinoid, stone lilies are flowerlike, with branching arms surrounding the central mouth.... |
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Metacrinus Interruptus "Metacrinus interruptus." -Parker, 1900... |
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Mollusca A sub-kingdom of animals embracing a division of the invertebrates. It includes especially those having an unsegmented bilateral body; four nervecords arranged in pairs, two visceral and two pedal, wi... |
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O. Lacertosa "Ophioglypha lacertosa. A, outline, of the natural size; B, central disc, dorsal view; C, the disc, ventral view showing the mouth and genital fissures." -Parker, 1900... |
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Ophiocoma Riisea "This figure shows a specimen of a family in which the arms are something like the tails of serpents. This species lives in she seas of the Antilles; the five arms are each provided with three to four... |
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Ophiuroid "Ventral surface of disc of an Ophiuroid (Ophiothrix fragilis). g., Openings of genital pockets or bursae; m., mouth; v., ventral plates of arms; sp., spines of arms; tf., tube-feet--at the right side... |
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Pentacrinus "Pentacrinus fasciculosus. Lias Shales, Wurtemburg; a ossicle of stem; (b ditto of another species, P. basaltiformis)." -Taylor, 1904... |
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Pentacrinus Caput Medusae "The Crinoidea, which belong to the family of starfishes, are mostly attached to marine rocks by a sort of root, having a long, flexible stem, which enables them to execute movements in the cir... |
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Pentacrinus Europaeus "The Crinoidea, which belong to the family of starfishes, are mostly attached to marine rocks by a sort of root. Another division of this family, although at first fixed to some rooted stem, in... |
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Pentacrinus, Medusa's head "This may be considered as one of the greatest wonders of nature, it being a real animal, having blood, and feeding upon other marine animals, yet having the form of a plant, and living like a plant, ... |
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