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Comprehensive Description

    Description of Kephyrion
    provided by BioPedia
    Chrysophyceae, single-celled, free-swimming flagellates enclosed in ovoid, bottle- to vase-shaped lorica that has a wide mouth opening and in one species with a basal opening; cells with one visible flagellum, one chloroplast, with or without an eyespot, and with contractile vacuoles; loricas of variable shape, thickness and ornamentation; often brown in colour owing to incorporation of manganese and iron compounds; asexual reproduction by longitudinal cell division, one daughter cell swimming away and forming a new lorica, the other daughter cell remaining in the parental lorica; zygotic stomatocysts produced outside the loricas following hologamic fusion, the loricas of the two gametes typically remaining attached to the zygote; species of Kephyrion commonly occur in plankton of many freshwater lakes and ponds; type species: Kephyrion sitta Pascher 1911.