Microworld

world of amoeboid organisms

Cunea-profundata

, after Kudryavtsev et Pawlowski, 2015

Cunea

Genus Cunea Kudryavtsev et Pawlowski, 2015

Diagnosis: Elongated amoebae with flat anterior hyaline area and conical posterior part of the cell consisting of granuloplasm. Anterior hyaline area produces tiny irregularities and sometimes short subpseudopodia at the margin, and may also be temporarily split into two lobes. A monopodial form with pronounced anterior hyaline cap may be temporarily adopted during locomotion. Cell coat consisting of tiny T-shaped structures over the plasma membrane.
Type species: Cunea profundata Kudryavtsev et Pawlowski, 2015

Ecology: All known species marine.

Cunea profundata Kudryavtsev et Pawlowski, 2015

Diagnosis: Length during locomotion 6–16 µm (average 9.7 µm), breadth 2.7–9 µm (average 5.7 µm), length:breadth ratio 0.83–5.13 (average 1.8); vesicular nucleus with the central nucleolus, diameter of nucleus 1.7–3 µm (average 2.2 µm), of nucleolus 0.7–1.8 µm (average 1.15 µm).

Ecology: Marine, aerobic bottom sediments with adjacent layer of water from the Brazilian abyssal plain, Atlantic Ocean, 3.9498333◦ S, 28.0870000◦ W, depth 5169.3 m, salinity 35‰;

Cunea thuwala Kudryavtsev et Pawlowski, 2015

Diagnosis: Length during locomotion 5–12.5 µm (average 8 µm), breadth 2.5–8 µm (average 4.8 µm), length:breadth ratio 1.02–3.82 (average 1.71); vesicular nucleus with the central nucleolus, diameter of nucleus 1.5–3.3 µm (average 2.1 µm), of nucleolus 0.7–1.66 µm (average 1.14 µm). Lenticulate electron-dense submembrane structures resembling collosomes.

Ecology: Marine, aaerobic bottom sediments with adjacent layer of water from the Red Sea, 22.31985◦ N, 39.004684◦ E, depth 58.7 m, salinity 40‰;

Ferry Siemensma, created March 15, 2023; last modified March 15, 2023
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