Microworld

world of amoeboid organisms

Menu

Geoamphorella lucidai

Geoamphorella lucida – after Bonnet, 1959

Genus Geoamphorella Bonnet, 1959

Diagnosis: Shell transparent, elongated ovoid, circular in cross section, with a pronounced chitinoid bright yellow collar, without visible structures. Shell covered with amorphous silica elements.
Type species: Geoamphorella lucida Bonnet, 1959
Monospecific

Geoamphorella lucida Bonnet, 1959

Diagnosis: Shell transparent, elongated ovoid, circular in cross section; tinted clear yellow or greyish white, with a chitinoid yellow collar, slightly widened at the circular aperture, covered with amorphous silica elements.

Dimensions: Length 55 µm, breadth 25 µm, length of the neck 5 µm, diameter 7 µm.

Ecology: Humic calcareous soils, rare.

Remarks: Decloitre (1964) described Pseudogeamphorella with a compressed shell.

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 »