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All Biocode files are based on field identifications to the best of the researcher’s ability at the time.
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In situ, preserved and SEM cross sections
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Holotype ZMA Por. 13145 (preserved), from Sulawesi, Indonesia.
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From holotype, SEM and light microscopic images
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RMNH Por. 2279, from Bali (photo N.J. de Voogd)
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Bidderia with cortical and subcortical skeletons exclusively composed of triactines and atrial skeleton composed of abundant tetractines and fewer triactines. Colour in life can be white or yellow. Sagittal spicules are located on the oscular membrane, surrounding the inhalant apertures and in the subcortical skeleton.