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Arthuria africana
''Arthuria africana'' is a sponge species of the genus ''Arthuria'' from South Africa from which the species is named.
==Description==
Cormus formed of thin, irregular and loosely anastomosed tubes. No water-collecting tubes have been observed. Cells with granules have also not been observed. The skeleton has no special organisation, comprising equiangular and equiradiate triactines and tetractines. Actines are conical, slightly undulated at the distal part, and with a sharp tip. The apical actine of the tetractines is shorter, smooth, conical, straight and sharp, and it is always projected into the tubes.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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