dcsimg

Comprehensive Description

    Comprehensive Description
    provided by Harmful Phytoplankton Project
    Cell bowl-shaped; oral cavity wide, EPks comprised of 2 equal segments, differently ciliated; EPZ very long, some are same length as cell is wide; two macronuclei, almost spherical, lateral; 4 somatic kineties, arranged in a bird-foot pattern; cells almost always fall ?face?-up or ?face?-down.
    Comprehensive Description
    provided by Harmful Phytoplankton Project
    Cell almost spherical; oral cavity acentric, narrow; IPks and EPks distinctly separate, but not obvious in Lugol?s; one macronucleus, kidney-shaped, lateral; 5 short somatic kineties

Diagnostic Description

    Diagnostic Description
    provided by Harmful Phytoplankton Project
    Body bowl-shaped, with a domed anterior surface (Fig 1,4,8,10); 30 (25-45) µm long and 45 (40-65) µm wide.; Oral cavity wide (Fig 1,2,6-9); 18-20 EPks and 4-5 IPks; IPZ and EPZ distinctly separate (Fig 1,6,7,9); EPZ prominent, same length as cell is wide (Fig 2-4,6); EPks of 2 equal segments, differently ciliated, the inner portion is slightly curved whereas the outer portion is relatively straight (Fig 1,9); IPks of unequal size - the smallest IPks are closest to the cytostome, they can be fragmented; cytopharyngeal fibres present (Fig 1,7,8).; 4 somatic kineties in a bird-foot pattern: 1 long, 3 short, with dikinetids, both kinetosomes ciliated (Fig 1).; Two macronuclei, almost spherical, in lateral position (Fig 1,2,5,6,7,9), each with an adjacent micronucleus (Fig 5-7).
    Diagnostic Description
    provided by Harmful Phytoplankton Project
    Body subspherical, 20 (10-25) µm long and 15 (10-20) µm in diameter (Fig 1-4,6-9).; Oral cavity acentric (Fig 1,11); 17-21 EPks and 4-6 IPks; IPks and EPks distinctly separate (Fig 1,11); cytopharyngeal fibres present (not visible in Lugol?s fixed material).; 5 short somatic kineties, each with 3-5 monokinetids, radiate from the posterior pole (Fig 1, 7,12).; One macronucleus, kidney-shaped, in lateral position (Fig 1,6-9).

Habitat

    Habitat
    provided by Harmful Phytoplankton Project
    Temperature: 10-18 ºC ; Salinity: 30-32 ?
    Habitat
    provided by Harmful Phytoplankton Project
    Temperature: 4-18 ºC ; Salinity: 30-32 ?