Microworld

world of amoeboid organisms

Menu
Pyxidicula patens var.
Pyxidicula ornata (from Balik, 1994)

Pyxidicula ornata  Bartos, 1954

Diagnosis: Shell rounded with a moderate undulated rim from ventral view, hat-like from side view. The shapeable shell constituted only of organic matter, shell surface coarse-grained (rim fine grained). On the vault part of the shell there are hemispherical little depressions in irregular radial rows. These depressions touch each other or are separate. Shell translucent, colorless or rusty brown. Aperture large, circular, with undulated rim, can change its shape or size.

Dimensions: Balik: diameter of the shell 184-209 µm, height of the shell 89-108 µm, aperture 126-161 µm, width of the undulated rim 17-26 µm, diameter of the depression 7-11 µm (n = 5).

Ecology: Wet mosses and Sphagnum, Bohemia (Bartos, 1954), Svalbard (Balik, 1994), Slovakia (Hajkova et al, 2012).

Recent posts

Difflugia new species

Difflugia sp. nov. 273-307 µm Difflugia sp. nov. Diagnosis: Shell elongated oblong, usually with a distinct neck, composed of much smaller particles than the rest

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 »

Actinosphaeridium spec.

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

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 »