Dinophyceae:
Peridiniales: Ceratiaceae
Dinoflagellida: Diniferina: Peridiniidae
Ceratium hirundinella
(O.F. Müller) Schrank 1882 (Mizuno & Takahashi eds. 2000)
(O.F. Müller) Dujardin 1841 (John et al. eds. 2002)
Genus: Body flattened; with one anterior and 1-4 posterior horn-like processes; chloroplasts
yellow, brown, or greenish; numerous species (Kudo, 1960).
Species:
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Ceratium hirundinella (O.F. Müller) Schrank 1882,
cell body about 240 μm long, 60 μm wide,
x 640, near Momijidani Ootsuribashi (hanging bridge), Shiobara town, Tochigi Pref., Japan, August 22, 2004, by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Ceratium hirundinella (O. F. Müller) Schrank:
95-100 μm;
epicone is one long horn; hypocone as two or three horns; many varieties
(How to know the protozoa, 1979).
200 μm long,
60 μm wide
(Illustrations of The Japanese Fresh-water Algae, 1977).
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