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Heliozoea: Dimorphida

 Dimorpha mutans
Gruber, 1881

Dimorpha Genus: Ovoid or subspherical; with two flagella and radiating axopodia, all arising from an eccentric centriole; nucleus eccentric; pseudopods sometimes withdrawn; fresh water (Kudo, 1966).
Species: Spherical cell body (heliozoan type) 15-22 μm in diam. (Page & Siemensma, 1991).
Similar genus -->> Ciliophrys;

Dimorpha mutans, cell body spherical in shape, 12 μm in diam., axopodia up to 27 μm long, x 400, x 640, Mizumoto Park, Katsushika-ku, Tokyo, Japan, July 2001 by Y. Tsukii
Heliozoa stage with flagella
scale 31 μm scale 63 μm scale 94 μm; x 640
Phagocytosis, ingestion of a food organism, Chromulina
Dimorpha Dimorpha Dimorpha Dimorpha Dimorpha Dimorpha
Phagocytosis, ingestion of a food organism, Chromulina
Dimorpha Dimorpha Dimorpha Dimorpha Dimorpha
Phagocytosis, ingestion of a food organism, Chromulina
Dimorpha Dimorpha Dimorpha Dimorpha Dimorpha

D. mutans Gruber: 15-20 μm diam.; flagella about 20-30 μm long (Kudo, 1966).
D. floridanis Bovee: Flagellate phase 18-20 μm long, 6-7 μm wide; two flagella 10-12 μm long, one directed anteriorly and the other bent laterally; heliozoan form 8-10 μm diam.; fresh water (Kudo, 1966).

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