world of amoeboid organisms

Menu
From Cavalier-Smith and Von der Heyden, 2007

Pterocystis cuspidata Cavalier-Smith and Von der Heyden, 2007

Diagnosis: radial scales (3-7 µm) non-striated, lacking transverse ribs, shaped like a moss leaf with a broad flattened, or even slightly indented base (in marked contrast to contorta and ovata) and straight or very gently curved midrib extending into a very long drawn out cuspidate tip, the end of which is straight; dense thickening at base of midrib is at the base, which may have a slight basal wing. Differs from P. foliacea by truncate base of scale and more pointed tip.
Plate scales (2.5-4 µm) broadly ovate with central axial ridge, slight lateral asymmetry, but no radial furrowing.
Type locality: among algae, Windlesham Arboretum, UK.

Recent posts

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 »