Raphidiophryidae Mikrjukov, 1996

Diagnosis: periplast typically containing tangential siliceous plates surrounded by a hollow marginal rim but never goblet-shaped or other radial scales.

Type genus Raphidiophrys Archer,1867

Included genera:

Raphidiophrys (six freshwater spp.).
Polyplacocystis (six spp.; marine, freshwater or both),
Heteroraphidiophrys (one marine species).
Pseudoraphidiophrys (four freshwater spp.) lacking the hollow rim.

Recent posts

Ditrema spec.

Ditrema spec. Ditrema spec. Diagnosis: Shell as with D. longicollis, but much smaller, surrounded by V-shaped structures that gave it the impression of a star.

Read More »

Rotosphaerida

Pompholyxophrys Pompholyxophrys Pompholyxophrys Rabdiophrys Rotosphaerida Rainer, 1968 Diagnosis: Aciliate predominantly spherical or flattened amoebae from which elongated actin-based filopodia extend; with flat discoid mitochondrial cristae;

Read More »

Centropyxis tabel

Key to Centropyxis species 1 Test in dorsal view circular or almost circular 2 – Test in dorsal view irregular due to various outgrows and

Read More »