Ciliophrys (silly-off-rees), a pedinellid stramenopile, with a single flagellum. The cell may exist as a non-swimming form with radiating arms, and with the flagellum inactive or beating in a languid figure of 8 motion. The arms can be resorbed, and the cell can then swim with the flagellum pulling the cell forward. This is the heliozoon form, with a nucleus in the centre of the cell. Phase contrast. This picture was taken by David Patterson of material from Limulus-ridden sediments at Plum Island (Massachusetts USA) in spring and summer, 2001. Image copyright: D. J. Patterson, image used under license to MBL (micro*scope).
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From the collection
Plum Island, Massachusetts coast, USA
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