Microworld

world of amoeboid organisms

Menu
Contractile vacuole and nucleus

Gocevia spec.

Diagnosis: amoeba more or less spherical in shape, partly or completely surrounded by a distinct hyaline margin; surface with a layer of foreign bodies; hyaline zone often irregular in outline with conical or digiform subpseudopodia and trailing filaments; nucleus spherical with central nucleolus which shows some lacunae.

Dimensions: c. 20 µm

Ecology: fresh water, in sediments of ditches.

Remarks: This species resembles G. binucleata, but differs in size and the structure of the nucleolus.

Several contractile vacuoles and pseudopodia (arrowed)
Recent posts

Velamentofex

Velamentofex tyrolensis Family Velamentofexidae Völcker and Clauß, 2020 Diagnosis: Multinucleate organic-walled monothalamous foraminifera. Test spherical to pyriform, usually surrounded by a broad layer of mucus-like

Read More »

Claparedellus lachmannii

Claparedellus lachmannii, common shape (Riedensee) Claparedellus lachmannii  Khanipour Roshan and Clauß, 2020 Diagnosis: Multinucleate organic-walled monothalamous foraminifera. Test spherical to elongated pyriform or irregularly shaped, with a

Read More »

Claparedellus

Claparedellus lachmannii Genus Claparedellus Khanipour Roshan and Clauß, 2020 Diagnosis: Multinucleate organic-walled monothalamous foraminifera. Test spherical to elongated pyriform or irregularly shaped, with a hyaline, flexible,

Read More »

Haplomyxa spec

Fig. 1: Main cell body partly hidden by debris Haplomyxa sp. Three specimens were observed in one Petri dish. Usually the cell body was attached

Read More »

Edaphoallogromiidae

Edaphoallogromia australica Family Edaphoallogromiidae Siemensma, Holzmann, Apothéloz-Perret-Gentil, Clauß, Voelcker, Bettighofer, Khanipour Roshan, Walden, Dumack and Pawlowski, 2020 Diagnosis: Multinucleate organic-walled monothalamous foraminifera with a spherical

Read More »

Lieberkuehnia spec.

Lieberkuehnia spec., body length 127 µm Lieberkuehnia spec.? I found two cells, size about 125 µm when ovoid, with an organic-walled membranous test and a

Read More »