Microworld

world of amoeboid organisms

Menu
Mayorella gemmifera
Mayorella penardi, 72 µm

 

Mayorella penardi Page, 1972

Diagnosis: Locomotive form often with broad blunt anterior end, with L/B ratio usually 1.2-6.5; mammilliform or conical subpseudopodia, often absent, or overtaken by the advancing hyaloplasm; floating form star-shaped, with long slender and pointed pseudopodia; nucleus spherical, with a central nucleolus; small paired crystals, usually < 1 µm observed; cuticula 180-200 nm thick.

Dimensions: Page: 35-125 µm, L/B 1.2-6.5; nucleus 5.6-13.0 µm. My measurements: 60-80 µm; nucleus 15 µm.

Ecology: Freshwater, Europe, North America. I found this species in the Kerf, a dune area along the North Sea coast.

Remarks:

Mayorella gemmifera
Mayorella gemmifera
Mayorella gemmifera
Recent posts

Netzelia levanderi

Difflugia levanderi , after Playfair, 1918 Difflugia levanderi  Playfair, 1918 Diagnosis: Test lance-oblong or mitriform (shaped like a bishop’s miter), short and broad, fundus shaped

Read More »

Netzelia angelica

D. angelica after Gauthier-Lièvre et Thomas, 1960 Difflugia angelica Gauthier-Lièvre et Thomas, 1960 Diagnosis: Test spherical, slightly mammillated. Pseudostome regularly lobed like a star with

Read More »

Test

fgdfgdfgfgfgfg fgdfgfd fg dfgfd gfdg fdg C. lunaristoma – from Coûteaux et Chardez, 1981 fdgdfgdfgfdgfgdfgfgf fgdgfdgfd gfdg dfgdf C. lunaristoma – from Coûteaux et Chardez,

Read More »

Frenopyxis bipilata

F. bipilata, Croatia, Tamnica Frenopyxis bipilata  (Baković, Siemensma, Baković and Rubinić, 2019) comb. n. Diagnosis: In dorsal view, the test is rounded and usually slightly wider

Read More »

Darbyshirella terrestris

D. terrestris, after Berney et al., 2015 Darbyshirella terrestris  Berney, Bass & Geisen, 2015 Diagnosis: Non-marine, with morphological characteristics of the genus. Usually above 600 um

Read More »

Acanthocystis elenazhivotovae

A. elenazhivotovae – from Leonov, 2010 Acanthocystis elenazhivotovae  Leonov, 2010 Diagnosis: Cell diameter 22-25 µm. Periplast with tangential plate-scales and radial spine-scales. Spine-scales 3.2-6.0 µm,

Read More »