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Chlorophyceae: Chlorococcales: Scenedesmaceae

Scenedesmus carinatus
(Lemmermann) Chodat
Syn.: S. opoliensis Richter var. varinatus Lemmermann

Scenedesmus Genus: Colonies of 4 (or 2, 8, 16) cells attached side by side, arranged linearly or zigzag; cell body elliptical or spindle or crescent in shape; terminal cells with spiny projections in many species; cell wall usually smooth, but in some species granulated or dented or ridged (Illustrations of The Japanese Fresh-water Algae, 1977).
Species: Colonies of 4, 8 cells, arranging linearly; cell body elongated spindle-shaped, with distinct ridges on both sides, 12-28 μm long, 5-8 μm wide; outer cells with long spiny projections on both ends; inner cells with two dented projections on both ends (Illustrations of The Japanese Fresh-water Algae, 1977).
Similar species -->> S. opoliensis (no ridges); S. armatus (small & ridges incomplete);


Scenedesmus carinatus (Lemmermann) Chodat, cell body 22 μm long, 8 μm wide, L/W=2.8, spines 20 μm long, cell body elongated spindle-shaped, with distinct ridges on both sides, x 640, Shirahata-Numa, Urawa, Saitama Pref., Japan, November 20, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Scenedesmus carinatus Scenedesmus carinatus Scenedesmus carinatus


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