world of amoeboid organisms

Menu

Pterocystis ovata

Pterocystis ovata (Dürrschmidt, 1987) Siemensma, 1991

Diagnosis: Periplast 5-10 µm. Spine-scales 1.2-1.5 µm long, ovoid-shaped, with fine radiating and regularly placec ribs; shaft weakly developed and at the base somewhat lowered. Plate-scales 1.5 X 0.6 µm, elliptical, without structure, with small ribs and axial thickening.
Type locality: Chile, fresh water, marshes.

Remarks: In 2007 Cavalier-Smith and Von der Heyden described a new species, Pterocystis ovata, but this name has already been occupied by Dürrschmidt (1987).

Recent posts

Cyclopyxis arenata

Cyclopyxis arenata – after Boltovskoy and Lena, 1966 Cyclopyxis arenata (Cushman, 1930) Boltovskoy, 1956 Basionym: Pseudarcella arenata Cushman, 1930 Diagnosis: Hemispherical shell. Convex dorsal side,

Read More »

Cyclopyxis overview 2

C. impressa C. impressa C. stellata C. stellata C. crucistoma C. crucistoma C. crucigenia C. crucigenia C. grospietschi C. grospietschi C. triquestrus C. triquestrus C.

Read More »

Cyclopyxis profundistoma

Cyclopyxis profundistoma – from Kufferath, 1932 Cyclopyxis profundistoma Kufferath, 1932 Diagnosis: The yellowish grey colored test is made of coarser mineral particles, which are connected

Read More »

Cyclopyxis maynei

Cyclopyxis maynei – from Kufferath, 1932 Cyclopyxis maynei Kufferath, 1932 Diagnosis: Test cylindrical, characterized by the size of the aperture, which is 87-97 μm wide

Read More »

Cyclopyxis kahli obliqua

C. kahli var. obliqua , after Decloitre, 1978 Cyclopyxis kahli var. obliqua   Decloitre, 1978 Diagnosis:  Test with all the characteristics of the type species

Read More »