Microworld

world of amoeboid organisms

Menu
Cyclopyxis C. stellata
Cyclopyxis stellata from Wailes, 1927

Cyclopyxis stellata (Wailes, 1927) Deflandre, 1929
Centropyxis stellata Wailes, 1927

Diagnosis: The shell is very large, hemispherical in profile, rounded in plan. The ventral side is concave, in its center there is a five-lobed (less often three- or four-lobed) mouth, the diameter of which is almost a third of the shell diameter.

Dimensions: Diameter of shell  335-400 µm; height of shell 250-290 µm; diameter of aperture 115-155 µm.

Ecology: Freshwater. Cortes Island, British Columbia, Canada, North America.

Remarks:

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 »