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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Quadrula

Quadrula F.-E. Schulze (ref. ID; 3693)

[ref. ID; 1618]
Test pyriform, hemispherical, or discoidal; with quadrangular siliceous or calcareous platelets, arranged generally in oblique series, not overlapping; a single nucleus; body and pseudopodia similar to those of Difflugia; fresh water. (ref. ID; 1618)
  1. Quadrula discoides Penard (ref. ID; 3693)
  2. Quadrula globulosa Penard (ref. ID; 3693)
  3. Quadrula plicata Hoogenraad & De Groot (ref. ID; 2242)
  4. Quadrula scutellata Wailes (ref. ID; 2242)
  5. Quadrula symmetrica F.-E. Schulze (ref. ID; 3693)
    Syn; Difflugia assulata Ehrenberg, 1871 (ref. ID; 1316) reported year? (ref. ID; 3693); Difflugia proteiformis var. symmetrica Wallich, 1863 (ref. ID; 1316) reported year? (ref. ID; 3693); Difflugia symmetrica Wallich, 1885 (ref. ID; 1316) reported year? (ref. ID; 3693)
  6. Quadrula symmetrica Wallich (ref. ID; 1618)
  7. Quadrula tropica Wailes (ref. ID; 2242)

Quadrula symmetrica Wallich (ref. ID; 1618)

Descriptions

Compressed, smaller platelets near aperture; cytoplasm very clear, with chlorophyllous granules; three to five pseudopodia digitate; nucleus posterior; in Sphagnum. (ref. ID; 1618)

Measurements

80-140 by 40-96 um. (ref. ID; 1618)