Microworld

world of amoeboid organisms

Menu
Vexillifera
Vexillifera
Vexillifera spec.

Genus Vexillifera Schaeffer, 1926

Diagnosis: Locomotive form frequently triangular in outline, often ranging from about 10 to 70 urn in length. Slender subpseudopodia, never branching, extend well beyond the anterior edge. In Vexillifera, pseudopodia are sometimes carried posteriorly giving the amoeba an overall spiny appearance. Cytoplasm sometimes containing a few crystals. Uninucleate, usually with a central nucleolus. No cysts reported. At the ultrastructural level, cell surface usually covered in hexagonal glycostyles. This surface structure distinguishes Vexillifera from amoebae in the morphologically similar family Paramoebidae.
At least 16 named species from freshwater and marine habitats.
Type species: Vexillifera lemani Page, 1976.

Vexillifera
Vexillifera
Vexillifera spec., Kootwijk, Netherlands, 2018
Vexillifera
Vexillifera
Vexillifera spec., Kootwijk, Netherlands, 2018
Vexillifera
 
Vexillifera spec., Kootwijk, Netherlands, 2018
Vexillifera
A-D Vexillifera lemani; E-N V. bacillipedes (Ferry Siemensma, 1981)
Recent posts

Actinosphaeridium spec.

Actinosphaeridium spec. Actinosphaeridium spec. Diagnosis: Cell surrounded by a kind of membranous shell. Filopodia with granules, sometimes branching. Cell not stalked, at least not observed.

Read More »

Euglyphidion

Euglyphidion enigmaticum – after Bonnet, 1960 Genus Euglyphidion Bonnet, 196 Diagnosis: Shell hyaline, ovoid, pseudostome circular or slightly elliptical. Shell loosely covered with two types of

Read More »

Leptomyxa spec.

Leptomyxa sp., slowly retracting in response to the light of the microscope Leptomyxa sp. Diagnose: This is a very large amoeba which I found in

Read More »

Zivkovicia spec.

Zivkovicia spec., 200 µm long; the right image is viewed through the aperture Zivkovicia spec.  Diagnosis: Shell pyriform, circular in oral view, with a clear

Read More »

Pontigulasia pentangulostoma

P. pentangulostoma, after Quin et al., 2008 Pontigulasia pentangulostoma Quin et al., 2008 Diagnosis: Shell is brown, laterally uncompressed, parted to neck and body regions

Read More »

Flabellula citata

Flabellula citata, from Dykova et al., 2008 Flabellula citata Schaeffer, 1926 Diagnosis: Length in locomotion 15-75 µm; width 25-55 µm. Shape very variable, from a

Read More »