Microworld

world of amoeboid organisms

Menu
Heterophrys myriopoda
Heterophrys myriopoda

Genus Heterophrys Archer, 1869, emend. Mikrjukov, 1996

Diagnosis: Centrohelid heliozoa with the cell body covered by a mucous coat, which often seems grainy; a lot of radial organic spicules disperse from it. Siliceous elements in the cell envelope are absent. One species has a mucous stalk.
Type species H. myriopoda Archer 1868.

Remarks: Sequence data are needed for the other two nominate species (H. minuta, H. simplex) to see if they also belong here. As Heterophryidae are polyphyletic, Chlamydaster, Oxnerella (a completely naked genus with no scales or mucous coat, formerly also included in the family), and H. marina are now excluded.

Heterophrys myriopoda
Heterophrys myriopoda
Heterophrys cells with loosely dispersed spines
Heterophrys myriopoda
The same cell as above
Heterophrys myriopoda
Dried specimen with spicula visible
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 »