Microworld

world of amoeboid organisms

Menu
Vampyrella spec.

Family Vampyrellidae Zopf, 1885 emend. Hess et al, 2012

Diagnosis: Limnetic Vampyrellida; predominantly showing the isodiametric morphotype in the trophic phase. Exhibiting straight, tapering and occasionally branching filose pseudopodia. Trophozoites of known members perforate algal cell walls (e.g. of Zygnematophyceae or Chlorophyceae) and phagocytose only the cell contents; thus seemingly strictly specialized on the food organisms. Cells show intense orange colour due to the algal diet, except directly after phagocytosis when the cells are green. Digestive cysts isodiametric, sometimes slightly flattened; at least two distinct cyst envelopes present; a delicate outer cyst envelope usually attaches the cyst to a substrate (e.g. the food alga), occasionally forming a stalk. The family can be phylogenetically defined as the largest well supported clade within the Vampyrellida including Vampyrella, but excluding Leptophrys (previously described as Vampyrella vorax).

Genera included: Vampyrella

Vampyrella lateritia
Vampyrella lateritia
Vampyrella lateritia
Vampyrella lateritia
Vampyrella borealis, empty cyst
Old slide, c. 1980
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 »

Reticulomyxa spec

Main cell body is embedded in debris Reticulomyxa sp.? I found this naked foraminifer in material scratched from submerged rocks at the base of the

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 »