Genus Sacciforma Dumack, Öztoprak, Rüger and Bonkowski, 2017

Diagnosis: Cell body in contrast to the apical-basal compressed Rhogostoma and Capsellina, to which it is closely related, elongated (length-width ratio approx. 1.5) and ventral flattened. Freshwater. Cysts, floating- or flagellate stages unknown.

Type species: Sacciforma sacciformis (Hertwig and Lesser 1874)

Etymology: saccus {noun} [Latin] = bag; formis {noun} [Latin] = shape; refers to the bag-like shape of the cell body, derived from the species name of the type species Sacciforma sacciformis, described as Plagiophrys sacciformis by Hertwig and Lesser,1874.

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 »


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 »