Microworld

world of amoeboid organisms

Menu
Menu
Difflugia carinata
Difflugia carinata, after Van Oye, 1956

Difflugia carinata  Van Oye, 1956

Diagnosis: Test in cross-section slightly compressed; however, the presence of a carina built up by a single row of sand-grains gives to the whole an aspect as if it were much more compressed than it actually is; indeed, without carina, the body is but very slightly compressed. On the fundus of the test, the carina may be built out of two rows of sand-grains, while there is but a single row on the lateral sides. The sand-grains on the body-surface are as numerous as in most Difflugia-species. The mouth-margin is built up by an irregular series of sand-grains. The keel makes a circle around the test and continues till ¼ of the length of the test, beginning from the aperture.

Dimensions: Length 92 µm; width 52 µm; aperture 18 µm.

Ecology: Freshwater. Sphagnum swamp, Dunedin, New Zealand.

Reference: Van Oye, P., 1956. On the Thecamoeban fauna of New Zealand with description of four new species. Hydrobiologia, VIII, 1-2.

 

Recent posts

Zivkovicia compressoidea

Z. compressoidea, a-b after Chardez, 1958; c after Jung, 1942 Zivkovicia compressoidea  (Jung, 1942) new.comb. Basionym: Pontigulasia compressoidea Jung, 1942 Diagnosis: Shell ovoid and compressed,

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

L. epiouxi, after Chardez, 1984 3 Lagenodifflugia epiouxi (Chardez, 1983) new comb. Basionym: Pontigulasia epiouxi Chardez, 1983 Diagnosis: Shell elongate, circular in cross-section or very

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 »