Microworld

world of amoeboid organisms

Menu
Paradermamoeba
Paradermamoeba
Paradermamoeba spec., Huizen, the Netherlands

 

Genus Paradermamoeba Smirnov & Goodkov, 1993

Diagnosis: Locomotive form flattened and oblong to elongate, between about 50 to 100 µm in length. Distinct anterior hyaloplasm extending as flattened lateral extension towards posterior. Surface of cell without dorsal folds or wrinkles. Nucleus with prominent central nucleolus.
At the ultrastructural level, unique glycocalyx (513 nm thick) composed of closely packed glycostyles. Viewed longitudinally, glycocalyx appears as spiral springs; in transverse sections the tips are as hollow pentagonal structures.
Type species: Paradermamoeba valamo Smirnov & Goodkov, 1993

Ecology: Single species from freshwater and bottom sediments.

Paradermamoeba
Paradermamoeba
Paradermamoeba
Paradermamoeba
Paradermamoeba
Paradermamoeba spec., c. 50 µm. All photomicrographs of the same cell, from Lolo Pass, Montana, USA
Paradermamoeba
Paradermamoeba
Paradermamoeba spec., from soil, near Hyères, France
Paradermamoeba
Paradermamoeba
Paradermamoeba spec., from a small fen near Kootwijk, Netherlands, c. 40 µm, nucleus 6.7 µm, with two nucleoli.
Paradermamoeba
Paradermamoeba
Dermamoeba spec., from soil, near Hyères, France; right: From Kootwijk, cell with two nucleoli
Paradermamoeba
Paradermamoeba spec.
Paradermamoeba
Paradermamoeba spec.
Recent posts

Penardochlamys arcelloides

P. arcelloides – from Penard, 1904 Penardochlamys arcelloides  (Penard, 1904) Deflandre, 1953 Diagnosis: Colorless or very slightly yellowish envelope, bag or cauldron-shaped, very thin, chitinous,

Read More »

Reticulomyxa hannae

R. hannae, plasmodium – photomicrograph Steffen Clauss Reticulomyxa hannae Völcker and Clauß, 2020 Diagnosis: Trophozoites surrounded by a very thin mucous envelope, with slowly moving plasmodia, variable

Read More »

Velamentofex saxonensis

V. saxonensis, feeding (photomicrograph Steffen Clauss) Velamentofex saxonensis Völcker and Clauß, 2020 Diagnosis: Trophozoites ovoid, 30-95 μm, granuloreticulopodia up to 1000 μm long. with a hyaline, thin

Read More »

Velamentofex tyrolensis

V. tyrolensis (photomicrograph Steffen Clauss) Velamentofex tyrolensis Völcker and Clauß, 2020 Diagnosis: Trophozoites ovoid, 98-125 μm, with reticulopodia up to 300 μm long, with a hyaline,

Read More »

Velamentofex berolinensis

V. berolinensis Velamentofex berolinensis Völcker and Clauß, 2020 Diagnosis: Trophozoites ovoid, 50-300 µm, with a hyaline, extremely flexible, membranous test. Nuclei numerous, 11.6-16.2 µm in diameter,

Read More »

Lieberkuehniidae

 Lieberkuehniidae  Siemensma, Holzmann, Apothéloz-Perret-Gentil, Clauß, Voelcker, Bettighofer, Khanipour Roshan, Walden, Dumack and Pawlowski, 2020 Diagnosis: Multinucleate organic-walled monothalamous foraminifera. Test very flexible, elongated to broadly

Read More »