Microworld

world of amoeboid organisms

Menu
Filamoeba sinensis – from Dykova, 2008

Genus Filamoeba Page, 1967

Cells flattened, fan-shaped, and sometimes with an elongate posterior giving the cell a spatulate outline, between 15 and 50 µm in length. Occasionally with 2 or more hyaline lobes. Clear, thin, filopodia, up to 10 µm long, extend from the hyaline edge. These can be branched at their base but are never anastomosing. Cytoplasm with 15 or more small contractile vacuoles. Cysts smooth and round, oval, or irregular in shape with a relatively thick wall. Monospecific.

Type species: Filamoeba nolandi Page, 1967

Ecology: described from freshwater.

Recent posts

Penardochlamys arcelloides

P. arcelloides – after Penard, 1904 Penardochlamys arcelloides  (Penard, 1904) Deflandre, 1953 Diagnosis: Colorless or very slightly yellowish envelope, bag or cauldron-shaped, very thin, chitinous,

Read More »

Haplomyxa spec

Fig. 1: Main cell body of specimen A, partly hidden by debris Haplomyxa sp. Three specimens were observed in a Petri dish, along with two

Read More »

Lachmannia spec.

“Lachmannia” spec., body length 127 µm “Lachmannia” spec. I found two cells, size about 125 µm when ovoid, with an organic-walled membranous test and a

Read More »

Diplophrys spec. 7

Diplophrys spec., with three tufts of filopodia Diplophrys spec. These cells are granular, never seen before. I found them in a sample from the Bert

Read More »

Psammonobiotus spec.

I found this specimen in a sample from the Oppad, near Hilversum, 2020. It is similar to Psammonobiotus linearis, but lacks a clear spine at

Read More »

Sphenoderia compressa

Sphenoderia compressa, after Badewitz, 2002 Sphenoderia compressa Badewitz, 2002 Diagnosis: Test ovoid, oval in cross section, hyaline, covered with relatively small, oval, rather irregularly arranged

Read More »