<i>Hyalogramma</i> M.Garcia (Fragilariales, Bacillariophyceae): a new hyaline araphid genus from Brazilian marine sandy beaches

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  • ブラジルの砂浜海岸から得られた殻の透明な無縦溝珪藻の新属 <i>Hyalogramma</i> M.Garcia
  • Hyalogramma M. Garcia (Fragilariales, Bacillanophyceae) : a new hyaline araphid genus from Brazilian marine sandy beaches

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Abstract

Observation of sand samples collected from dissipative marine sandy beaches in Southern Brazil revealed the presence of a new hyaline araphid diatom, characterized by the presence of two rimoportulae per frustule (located in a diagonal position at each apex), two simple apical pore fields on the mantle at each valve pole, striae that are not visible in LM, a very narrow sternum visible only in SEM, and open and similar bands ornamented by 3–5 rows of poroids. The new species, Hyalogramma brasiliensis M.Garcia, belongs to a new araphid genus, Hyalogramma M.Garcia, and is placed within the family Fragilariaceae.

Journal

  • Diatom

    Diatom 28 (0), 7-13, 2012

    The Japanese Society of Diatomology

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