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Chlorophyceae: Volvocales: Astrephomenaceae (or Volvocaceae)
Volvocica: Volvocina: Astrephomenaceae

Astrephomene sp.
Pocock, 1954

xxxx Genus: Colony spherical in shape, consisting of 64 or 32 cells arranging at its perphery; a large inner cavity present; each cell embedded within a gelatinous matrix; four small asexual (somatic) cells located at the posterior end of the colony; with two flagella; chloroplast cup-shaped; pyrenoids absent; stigma conspicous, located at anterior half of the cell body; 3 or 4 contractile vacoules anterior (Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).
Species:


Astrephomene sp. ?, colony 24 μm diam., cell body 4.5 μm diam., flagellum 15 μm long, x 640, Shiro-numa, Tatebayashi city, Gunma Pref., June 2001 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Astrephomene Astrephomene Astrephomene
Astrephomene Astrephomene Astrephomene


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