portrait

Heterophrys (het-err-off-riss) is a centrohelid heliozoon - the most speciose group of heliozoa. The heliozoa do not form a natural (monophyletic and holophyletic) group of protists, but a type of organization that have been arrived at from a number of different evolutionary lineages. Heterophrys is apparently naked, careful scrutiny usually reveals delicate radiating (organic) spicules. the arms terminate on a non-nuclear organizing centre (the dark dot in this cell. Heliozoa are predators, motile prey is captured after swimming into the arms. This cell seems to have been eating algae. Phase contrast.  This image was taken by Dave Remsen and D. J. Patterson from samples from a rainwater barrel in a garden in Woods Hole (Massachusetts, USA). Image copyright: Dave Remsen and D. J. Patterson, image used under license to MBL (micro*scope).

Heterophrys

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Heterophrys in this collection

Heterophrys feeding

Heterophrys in other collections

Heterophrys fockei, from Protozoan biomonitors in China	Heterophrys myriopoda, from Protozoan biomonitors in China	Heterophrys radiata, from Protozoan biomonitors in China	Heterophrys, from Protsville drawings of freshwater protists	Heterophrys, from Lake Pontchartrain microbes
Heterophrys, from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere	Heterophrys, from Yellowstone National Park (Wyoming, USA)	Heterophrys, from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere	Heterophrys, from Lamont Pond, freshwater, New York	Heterophrys, from Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere