world of amoeboid organisms

Menu

Genus Parachaos Willumsen, Siemensma & Suhr-Jessen, 1987

Diagnosis: Locomotive form commonly polypodial, 100 to 500 µm, or monopodial up to 900 µm in length. Multinucleate with 8 to 50 spherical, or slightly oval, nuclei per cell. Nucleolar material parietal as single layer or irregular fragments or a central nucleolus. Cytoplasm rich in bipiramidal or plate-like crystals and zoochlorellae in many isolates. Usually with villous-bulb uroid.

Type species: Parachaos zoochlorellae (Willumsen, 1982)

Ecology: Freshwater.

Remarks: Similar to Chaos but at the ultrastructural level Parachaos can be distinguished by an amorphous cell coat without filaments and nuclei with no internal laminae.

Trichamoeba laureata

Ferry Siemensma, 1987
Recent posts

Sphenoderia compressa

Sphenoderia compressa, after Badewitz, 2002 Sphenoderia compressa Badewitz, 2002 Diagnosis: Test ovoid, oval in cross section, hyaline, covered with relatively small, oval, rather irregularly arranged

Read More »

Tracheleuglypha elongata

T. elongata, A-C after Thomas and Gauthier-Lièvre, 1959; D after Van Oye, 1959 Tracheleuglypha elongata Van Oye, 1959 Diagnosis: Test similar to T. dentata, but

Read More »

Tracheleuglypha acolla

T. acolla, after Bonnet and Thomas, 1960 Tracheleuglypha acolla Bonnet and Thomas, 1955 Diagnosis: Test ovoid, non compressed, round in cross-section, with large oval overlapping

Read More »

Cyclopyxis kahli oblonga

C. kahli f. oblonga , after Tarnogradskii, 1959 Cyclopyxis kahli f. oblonga  (Tarnogradskii, 1959) Centropyxis kahli f. oblonga Tarnogradskii, 1959 Diagnosis:  Test with all the

Read More »

Cyclopyxis leclercqi

Cyclopyxis leclercqi – from Beyens and Chardez, 1986 Cyclopyxis leclercqi Beyens and Chardez, 1986 Diagnosis: Shell circular in apertural view, dorso-ventrally compressed with a swollen

Read More »

Haplomyxa saranae

Haplomyxa saranae Dellinger, 2014 Diagnosis: cell body from small rounded (0.1 mm) to large elongated shape (up to 3.5 x 0.3 mm), usually flat but

Read More »