Family: Unicellular or Colonial; cell body spherical, with one or more spiny projections; a single cup-shaped chloroplast with a pyrenoid; asexual reproduction by zoospores or autospores; sexual reproduction by fertilization (Illustrations of The Japanese Fresh-water Algae, 1977).
Genus: Colonial; cells arranged pyramidately, each bearing spiny projections.
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E. bornheimiensis
col. 20-24 μm
cell 4.7-6.2 μm
spine ~51 μm
Japan, 2000
Errerella sp. ?
col. μm
cell μm
spine μm
Umi-no-nakamichi
Fukuoka, 2001
Errerella sp.
col. μm
cell μm
2 or more spines
spine μm
Iwajuku
Gunma, 2001
Errerella sp.
col. 20 μm
cell 5 μm
2 or more spines
spine ~27 μm
Abiko
Chiba, 2000
