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

Microcorycia spec. 4

Microcorycia spec. , folded Microcorycia spec.? I found this specimen in a sample from moss on a fallen tree in a marsh in the Naardermeer,

Read More »

Microchlamys spec.

Microchlamys spec., the same cell in lateral view Microchlamys spec. Diagnosis: Shell relatively high compared with all described species. The diameter is twice the height.

Read More »

Excentrostoma

Infraorder Excentrostoma Kosakyan et al., 2016   Diagnosis: Testate amoebae with an eccentrically placed aperture; test organic with few or many xenosomes. Family Centropyxidae Jung, 1942  

Read More »

Longithecina

Infraorder Longithecina Kosakyan et al., 2016   Diagnosis: Testate amoebae with a more or less tubular or cylindrical test and a terminal aperture; test with

Read More »