image_list image_listE

Chlorophyceae: Chlorococcales: Scenedesmaceae

 Pseudotetradesmus quaternarius
Hirose et Akiyama

Pseudotetradesmus Genus: Cells arranged three-dimentionally; cell body crescent or cylindrical in shape, slightly curved, separated from each other, arranged longitudinally parallel (Illustrations of The Japanese Fresh-water Algae, 1977).
Species: Colonies of 4 cells; cell body cylindrical, slightly swelled at the center, both ends bluntly truncated, 8-18 μm long, 5-9 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).
Similar species -->> Scenedesmus producto-capitatus;

Pseudotetradesmus quaternarius Hirose et Akiyama, cell body μm long, μm wide, x 640, Higusa-numa (swamp), Miyakawa, Hikari town, Chiba Pref., Japan, September 2003 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Pseudotetradesmus quaternarius Pseudotetradesmus quaternarius Pseudotetradesmus quaternarius Pseudotetradesmus quaternarius

Please click on images for viewing enlarged.
Copyright Protist Information Server