world of amoeboid organisms

Menu
Campascus insterstitialis
Campascus interstitialis – After Golemansky, 1981

Campascus interstitialis  Golemansky, 1981

Diagnosis: Test elongated, in the shape of a bottle with a curved, colorless, transparent and very short neck. Fundus rounded, rarely ogival. Test in cross-section circular. Pseudostome round, rarely broadly oval, with a very delicate chitinous collar. Test is chitinoid and formed of a membrane embedded with idiosomes and rarely flat xenosomes, tight against each other. Sometimes they give the appearance of a fine cross-linking of the theca, similar to that of a Cyphoderia. Cytoplasm clear and hyaline, with a single nucleus. Filopodia, commonly 2-3, long and very fine.

Dimensions: Length of the test: 32-45 µm, width (diameter) of the theca: 15-23.5 µm. Pseudostome: 8-11 µm, collar: 9-15 µm.

Ecology: C. interstitialis lives in the underground waters of the sandy beaches of the Black Sea, Baltic Sea and the Atlantic. It is a euryhaline species observed in water salinity ranging from 3.4% – 22.85%.

Remarks: C. interstitialis differs from C. minutus Penard in its smaller size, its triangular cross section and especially its ecology. However, C. minutus lives in intercontinental lakes and its length varies from 50 to 60 µm (Penard 1902, 1908, Chardez 1965).

Campascus insterstitialis
Campascus interstitialis – After Golemansky, 1981
Recent posts

Spiculophrys

Genus Spiculophrys Zlatogursky, 2016 Diagnosis: Centrohelids lacking silica scales but with numerous thin, pointed organic (without any traces of silica) scales tapering towards acute apices. 18S

Read More »

Acanthocystis drakena

From Zlatogursky, 2016 Acanthocystis drakena Zlatogursky, 2016 Diagnosis: Cells are 21.1-30.5 µm (ca. 26.7) in diameter. Cell is covered with oval plate-scales having a margin

Read More »

Choanocystis symna

From Zlatogursky, 2014 Choanocystis symna Zlatogursky, 2014 Diagnosis: Cell body ca. 6.7 µm in diameter. Axopodia three–five times longer than a cell diameter. Plate-scales dumbbell-shaped

Read More »

Acanthocystis costata

From Zlatogursky, 2014 Acanthocystis costata Zlatogursky, 2014 Diagnosis: Cell body ca 9.5 µm in diameter. Axopodia 2–3 times longer than cell diameter. Length of spine-scales

Read More »

Kinetocyst

Left: ultra-structure of a kinetocyst of Raphidiophrys contractilis); right: two kinetocysts in an axopodium. Kinetocysts In centrohelid heliozoa, extrusomes are called kinetocysts, and are present

Read More »

Yogsothoth carteri

Yogsothoth carteri, after Shishkin and Zlatogursky, 2018 Yogsothoth carteri Shishkin and Zlatogursky, 2018 Diagnosis: Individual cells in a colony have a diameter of 9.7-15.2 µm;

Read More »