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Xanthophyceae: Mischococcales: Centritractaceae

Centritractus belenophorus
C. belenophorus Lemmermann (Süßwasserflora von Mitteleuropa 3, Xanthophyceae 1, 1978)
C. belanophorus Lemmermann (Yamagishi, ed. 1999; Algaebase)
C. belonophorus (W. Schimdel) E. Lemmermann (Algaebase)

Centritractus Genus: Unicellular; planktonic; cell body elongated cylindroid, both ends with long spiny projections; cell wall separated into two parts overlapping at the mid-region;; several chloroplasts plate-like, without pyrenoids (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species: Cell body 16-40 μm long, 8-15 μm wide, spines 15-30 μm long (Süßwasserflora von Mitteleuropa 3, Xanthophyceae 1, 1978).

Centritractus sp. (C. belenophorus Lemmermann or C. rotundatus Pascher ?), cell body 45 μm long, 7 μm wide, spines 39-43 μm long x 640, Shikinawa-ike (pond, near Kayoicho Park), Kasuya town, Fukuoka Pref., Japan, October 2001 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Centritractus Centritractus Centritractus Centritractus

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