Microworld

world of amoeboid organisms

Menu
Menu
Difflugia lucida
Difflugia lucida, in frontal and lateral view; moss, Netherlands

Difflugia lucida Penard, 1890

Diagnosis: Shell hyaline, more or less U-shaped and strongly compressed, covered with flat quartz particles. Living individuals accumulate mainly inorganic material round the elliptic aperture. This aggregation of particles is probably drawn into the shell when the amoebae encysts and is lost when the cell dies. Nucleus ovular, about 10 µm in diameter, with a number of irregularly shaped nucleoli. Pseudopodia relatively thin.

Dimensions: ca. 64-70 µm; Penard (1902): 50-60 µm, up to 65 µm.

Ecology: Freshwater, soil and mosses. A common species, cosmopolitan.

Difflugia lucida, nuclei arrowed
Difflugia lucida
Difflugia lucida, 64 and 68 µm
Difflugia lucida
Difflugia lucida

Difflugia lucida, , dry moss, the Netherlands

Difflugia lucida
Difflugia lucida
Difflugia lucida, 68 µm, Crailoo, the Netherlands and, Difflugia lucida, 70 µm, Tirol, Austria
Difflugia lucida
Difflugia lucida
Difflugia lucida, right: lateral view, 70 µm – Tirol, Austria, and aperture of the specimen to the left.
Difflugia lucida
The same shell as above; note the darker grains around the pseudostome.
Difflugia lucida, both c. 60 µm, xerophyle moss, Germany
Difflugia lucida
Drawing: Penard (1902) in Faune Rhizopodique du Bassin du Leman
Difflugia lucida
Stacked image partly showing the covering with flat xenosomes
Difflugia lucida
Two living cells of Difflugia lucida – Photomicrography Angie Opitz, Austria.
Recent posts

Zivkovicia compressoidea

Zivkovicia compressoidea, from Jung, 1942 Zivkovicia compressoidea  (Jung, 1942) Basionym: Pontigulasia compressoidea Jung, 1942 Diagnosis: Shell ovoid and compressed, without any constriction between neck and

Read More »

Zivkovicia flexa

Zivkovicia flexa, from Cash and Hopkinson, 1909 Zivkovicia flexa  (Cash and Hopkinson, 1909) Ogden, 1983 Basionym: Pontigulasia compressa var. flexa  Cash and Hopkinson, 1909 Diagnosis:

Read More »

Lagenodifflugia epiouxi

After Chardez, 1984 Lagenodifflugia epiouxi (Chardez, 1983) new comb. Basionym: Pontigulasia epiouxi Chardez, 1983 Diagnosis: Shell elongate, circular in cross-section or very slightly compressed. The

Read More »

Centropyxis lapponica

Centropyxis lapponica, after Grospietsch, 1954 Centropyxis lapponica  Grospietsch, 1954 Diagnosis: Shell nearly circular in circumference, without spines. Aperture clear square with rounded corners. Shell viewed

Read More »

Chaos spec. 6

Chaos spec., Crailoo, 2021 Chaos spec. This specimen was found in a samples from Crailoo, Netherlands. It was remarkable because of the absence of crystals.

Read More »