Microworld

world of amoeboid organisms

Menu
Leptophrys spec.
Leptophrys elegans, ca. 200 µm, characteristic shape

 

Leptophrys elegans Hertwig & Lesser, 1874

Diagnosis: Trophozoites usually ribbon-shaped, with continuously moving granular colorless cytoplasm; filopodia usually produced at the edges of the cell, often originating from a hyaline and very delicate fringe of cytoplasm, sometimes in tufts; filopodia long and thin, mostly unbranched, without membranosomes; cytoplasm with several contractile vacuoles; colorless granules; nuclei not visible; cells constantly moving and changing of shape.

Dimensions: My measurements: stretched body 160-300 µm.

Ecology: Fresh water, France

Remarks: The photomicrographs on this page are from specimens which showed up in moist chamber slides from samples from a fast running stream near St. Tropez, France and a peat bog along the Bert Bospad, the Netherlands.

Leptophrys spec
Leptophrys elegans
Leptophrys spec.
Leptophrys elegans
Leptophrys elegans
Leptophrys elegans
Leptophrys spec.
Leptophrys elegans
Leptophrys elegans
Drawing: Hoogenraad and De Groot – Collection Ferry Siemensma
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 »