Microworld

world of amoeboid organisms

Menu
Mayorella viridis
Mayorella sp.

Mayorella sp.

Diagnosis: locomotive form elongated, with the length always greater than the breadth; mammilliform or conical subpseudopodia, often overtaken by the advancing hyaloplasm; nucleus spherical, with a central nucleolus; endoplasm densely filled with small granules which make it very difficult to detect any other content, like crystals.

Dimensions: c. 150-180 µm; c. nucleus 12-19.9 µm (n=8).

Ecology: forest soil, Southern France.

Remarks: it is hard to tell if the dense mass of granules is a taxonomic character. All observed amoeabe look the same.

Mayorella viridis
Mayorella sp., 155 µm and ingested diatoms
Mayorella viridis
The ectoplasm contains a large number of granules of different size.
Mayorella viridis
Nucleus
Recent posts

Nebela golemanskyi

N. golemanskyi, after Todorov, 2010 Nebela golemanskyi Todorov, 2010 Diagnosis: Shell large, colourless and pyriform, with a distinct short neck about one fourth of the

Read More »

Nebela nebeloides

N. nebeloides, after Gauthier-Lièvre and Thomas, 1958 Nebela nebeloides (Gauthier-Lièvre and Thomas, 1958) Todorov et al., 2010 Basionym: Difflugia nebeloides Gauthier-Lièvre and Thomas, 1958 Diagnosis:

Read More »

Difflugia biwae

D. biwae, after Yang and Shen, 2005 Difflugia biwae Kawamura, 1918 Diagnosis: Shell in lateral view fusiform in outline with a straight neck, a conspicuous

Read More »

Difflugia mulanensis

D. mulanensis, after Yang et al., 2015 Difflugia mulanensis Yang, Meisterfeld, Zhang and Shen, 2015 Diagnosis: Shell elongate ovoid like a vase, with a distinct

Read More »

Euglypha bryophila

Euglypha bryophila, after Brown, 1911 (L), from Ecuador (R) Euglypha bryophila  Brown, 1911 Diagnosis: (Original description) The test is very regular in form and subject

Read More »

Vernalophrys

(A) A Scenedesmus cell (arrow) is engulfed by a trophozoite. (B) Several Scenedesmus cells adhere to the surface of a plasmodium that has numerous vacuoles

Read More »