Difflugia schuurmani Van Oye, 1932
Diagnosis: Shell elongate ovoid; narrows from the middle towards the pseudostome and to the fundus. Pseudostome three-bladed; blades less pronounced than those of D. gramen, smaller, and pseudostome more open.
Dimensions: Length 50-85 µm, width 36-69 µm, diameter pseudostome 18-30 µm.
Ecology: Freshwater.
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,
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
“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
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
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
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