Microworld

world of amoeboid organisms

Menu
Gocevia binucleata
Gocevia binucleata
Gocevia binucleata, left specimen with two nuclei

Gocevia binucleata De Saedeleer, 1934

Diagnosis: amoeba more or less spherical in shape, partly or completely surrounded by a distinct hyaline margin; surface with a layer of foreign bodies, though young cells may be nearly free of them; protoplast not filling the cuticle completely; hyaline zone often irregular in outline with conical or digiform subpseudopodia and trailing filaments; cells usually binucleate.

Dimensions: 29-36 µm.

Ecology: fresh water, in sediment. Not rare.

Remarks: It is very hard to detect the nucleus. Usually this species should have two nuclei, but I have trouble to detect even one, because of the dense covering with xenosomes.

Gocevia binucleata
Gocevia binucleata
The same specimen in DIC and Phase Contrast
Gocevia binucleata
Gocevia binucleata
Gocevia in normal illumination and in Phase Contrast.
Gocevia binucleata
Gocevia binucleata
Arrows point to hyaloplasm; n=nucleus
Gocevia binucleata
Gocevia binucleata
Gocevia binucleata
Recent posts

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 »

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 »