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  1. 1

    The biology of Lytechinus Variegatus. por Moore, H.B

    Artigo

    The biology of Lytechinus Variegatus.
  2. 2

    The correlation of symmetry, color and spination in an urchin. por Moore, Hilary B.

    Artigo

    The correlation of symmetry, color and spination in an urchin.

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