An account of Astartiella species from tropical areas with a description of A. societatis sp. nov. and nomenclatural notes

Author： Riaux-Gobin Catherine   Witkowski Andrzej   Romero Oscar E.  

Publisher： Taylor & Francis Ltd

ISSN： 0269-249X

Source： Diatom Research, Vol.28, Iss.4, 2013-12, pp. : 419-430

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Abstract

During a survey of the diatom community associated with coral reefs at Tahiti Island, Society Archipelago, South Pacific, two species belonging to Astartiella Witkowski, Lange-Bertalot & Metzeltin, including A. societatis Riaux-Gobin, Witkowski & Romero sp. nov. a species morphologically similar to A. bremeyeri (Lange-Bertalot) Witkowski & Lange-Bertalot, were found from the teguments of a large Holothuria atra Jaeger (Echinodermata). The second species, A. punctifera (Hustedt) Witkowski & Lange-Bertalot, occurred on nearby marine sediments. These species were compared with other Astartiella taxa recorded at similar latitudes in the Indian Ocean, namely Juan de Nova, Scattered Islands and Mascarene Archipelago. Nomenclatural issues along with the proposed transfer of Achnanthes heterostriata Hustedt to Astartiella are discussed.

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