Microworld

world of amoeboid organisms

Menu
D. compressa, after Leidy, 1879

Difflugia compressa (Leidy, 1879) Gauthier-Lièvre et Thomas, 1958

Diagnosis: Test shrub-shaped, laterally compressed, with distinct short neck, covered with very large and tightly laid mineral grains, which decrease in the direction of the pseudostome. Pseudostome, very small, 1/3-1/4 of the greatest width of the shell.

Dimensions: Length 150-400 µm, width 110-170 µm, thickness 20-35 µm, pseudostome diameter 20-50 µm.

Ecology: Freshwater.

Variety:

D. compressa africana Gauthier-Lièvre et Thomas, 1958.
It differs from the typical form in larger sizes.
Length 220-280 µm, width 189-249 µm, thickness 136-155 µm, pseudostome diameter 55-58 µm.

Recent posts

Amoeba proteus var.

Amoeba proteus var. Amoeba proteus var.  Diagnosis: This variety differs from the type by its oval nucleus. Dimensions: 250-400 µm (n=2); nucleus 34 x 29

Read More »

Reticulomyxa hannae

R. hannae, plasmodium – photomicrograph Steffen Clauß Reticulomyxa hannae Völcker and Clauß, 2020 Diagnosis: Trophozoites surrounded by a very thin mucous envelope, with slowly moving plasmodia, variable

Read More »

Velamentofex

Velamentofex tyrolensis (photomicrograph Steffen Clauß) Family Velamentofexidae Völcker and Clauß, 2020 Diagnosis: Multinucleate organic-walled monothalamous foraminifera. Test spherical to pyriform, usually surrounded by a broad

Read More »

Claparedellus lachmannii

Claparedellus lachmannii, common shape (Riedensee) Claparedellus lachmannii  Khanipour Roshan and Clauß, 2020 Diagnosis: Multinucleate organic-walled monothalamous foraminifera. Test spherical to elongated pyriform or irregularly shaped, with a

Read More »

Claparedellus

Claparedellus lachmannii Genus Claparedellus Khanipour Roshan and Clauß, 2020 Diagnosis: Multinucleate organic-walled monothalamous foraminifera. Test spherical to elongated pyriform or irregularly shaped, with a hyaline, flexible,

Read More »

Velamentofex tyrolensis

V. tyrolensis (photomicrograph Steffen Clauß) Velamentofex tyrolensis Völcker and Clauß, 2020 Diagnosis: Trophozoites ovoid, 98-125 μm, with reticulopodia up to 300 μm long, with a hyaline,

Read More »