Collodictyon, flagellate with 4 flagella, an irregular outline and ventral groove. Consumes algae and other small particles in the phytoplankton. This form has also been reported under the name Polytomella. From freshwater pond near Boise, Idaho. Phase contrast. This image was taken by William Bourland. He now uses a Zeiss Axioskop 2 with Spot Insight and Spot Flex CCD cameras (Diagnostic Instruments). Image copyright: William Bourland, image used under license to MBL (micro*scope).
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Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere
|Description of Collodictyon: Circumscription: Heterotrophic flagellates, four similar flagella inserting at the head of a broad ventral groove, ingesting algae via the groove. Ultrastructural identity: Mitochondria with tubular cristae, dictyosomes present, cells without walls, scales, or other excrescences. Synapomorphy: None at this time. The one ultrastructural study to date lacks detail, possibly related to Diphylleia. Composition: Several species. Ref: Klaveness 1995. |