world of amoeboid organisms

Menu
Centropyxis declivistoma
Centropyxis declivistoma, after Chardez, 1990

Centropyxis declivistoma Chardez, 1990

Diagnosis: Test ovoid, slightly compressed dorso-ventrally, especially in the anterior region, embedded with polymorph mineral platelets. Pseudostome oval, formed by a short visor which covers a small but very elongated and straight aperture. In lateral view, this pseudostome forms an angle of some degrees with the longitudinal axis. In apertural view, this aperture is a simple slit. One long lobopodium observed.

Dimensions: Length 150-154 µm; width 98-100 µm; thickness 70-76 µm; pseudostome 19-20 x 6.5-9.9 µm.

Ecology: Freshwater. Tirol, Germany.

Reference: Chardez, D., 1990. Contribution a la connaissance des Thecamoebiens aquatiques du Tirol allemande (Rhizopoda, Testacea). Acta Protozool., 29(2):152-156.

 

Recent posts

Polychaos spec.

Polychaos spec. Polychaos spec. Diagnosis: Large amoeba with an irregular more or less polypodial shape during slow locomotion; uroid finely papillated, usually very large fasciculate

Read More »

Spiculophrys

Genus Spiculophrys Zlatogursky, 2016 Diagnosis: Centrohelids lacking silica scales but with numerous thin, pointed organic (without any traces of silica) scales tapering towards acute apices. 18S

Read More »

Acanthocystis drakena

From Zlatogursky, 2016 Acanthocystis drakena Zlatogursky, 2016 Diagnosis: Cells are 21.1-30.5 µm (ca. 26.7) in diameter. Cell is covered with oval plate-scales having a margin

Read More »

Choanocystis symna

From Zlatogursky, 2014 Choanocystis symna Zlatogursky, 2014 Diagnosis: Cell body ca. 6.7 µm in diameter. Axopodia three–five times longer than a cell diameter. Plate-scales dumbbell-shaped

Read More »

Acanthocystis costata

From Zlatogursky, 2014 Acanthocystis costata Zlatogursky, 2014 Diagnosis: Cell body ca 9.5 µm in diameter. Axopodia 2–3 times longer than cell diameter. Length of spine-scales

Read More »

Kinetocyst

Left: ultra-structure of a kinetocyst of Raphidiophrys contractilis); right: two kinetocysts in an axopodium. Kinetocysts In centrohelid heliozoa, extrusomes are called kinetocysts, and are present

Read More »