Ellipsopyxis – Microworld

E. regularis – after Bonnet, 1965

Genus Ellipsopyxis Bonnet, 1965

Diagnosis: Shell as in Cyclopyxis but bilaterally symmetrical, with elliptical pseudostome with no or only slight invagination. Test yellowish or clear maroon, ventral surface smooth due to organic cement, dorsal and lateral surfaces encrusted with small mineral particles. In dorsal view elliptic, but in lateral view on to the large axis semi-elliptic.

Type species: Ellipsopyxis pauliani Bonnet, 1965
Four species.

Ecology: Mainly in rich organic tropical forest soils. Distribution: Africa, Asia, Central- and South America.

Ferry Siemensma
Created April 26, 2019
Last updated February 01, 2021

Actinosphaeridium spec.

February 24, 2021

Actinosphaeridium spec. Diagnosis: Cell surrounded by a membranous shell, with an outer mucous layer. Filopodia with granules, sometimes branching. Cell stalked. Ecology: I found this

Euglyphidion

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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

Leptomyxa spec.

February 16, 2021

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

Zivkovicia spec.

February 15, 2021

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

Pontigulasia pentangulostoma

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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

Flabellula citata

February 11, 2021

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

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