Pseudocorythion acutum
P. undulacollis from Chardez et Thomas, 1980

Pseudocorythion undulacollis Chardez et Thomas, 1980

Diagnosis: Test consists of two different sections: a large funnel-shaped collar around a circular aperture and an elongated ovoid body with or without a terminal spine; in cross-section elliptical. Test covered with rounded idiosomes, regularly arranged. The border of the collar is finely undulated. A number of small striations extend from the border towards the aperture for about 1/3 of the diameter of the collar. Just as the body, the collar is ornamented with idiosomes, but these are slightly oval and arranged in circles.

Dimensions: Length 41-52 µm; diameter 10-180 µm; collar 21-28 µm.

Ecology: Marine. France, Atlantic coast.

 

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 »