after Zivkovic, 1975

Protocucurbitella longicornis Zivkovic 1975
=Netzelia corona!

Diagnosis: Test in lateral view spherical or ovoid, with 1-2 long and hollow horns, which are placed either in the center of the fundus, or on the flanks. Collar well marked and separated from the flanks. Test in cross section in apical view circular. Aperture circular, surrounded by large teeth, between the diaphragm is visible. Test not transparent, covered by different mineral particles. No living cells observed. By the shape of the test, its size and the position of the horns it looks most like Difflugia duplicata (Daday). The differences are: the clearly separated collar, the serrated pseudostome and the diaphragm which is clearly visible between the teeth.

Dimensions: Height with horns 200-228 μm, without horns 150-168 μm, diameter 130-140 μm, pseudostome 50-70 μm, horns 50-70 μm, H/D 1.0-1.3

Ecology: P. longicornis was found in a marsh, on the edge of Sphagnum peat which is covered by a vegetation consisting of submerged plants and submerged plants (Carex, Utricularia and the others), in community with the species of the genera: Cucurbitella, Difflugia, Centropyxis, Arcella and others.

Europe, Serbia, Vlasina (1100 above sea level)

Remarks:

Recent posts

Difflugia key lobed

Tests with lobed or irregular aperture The aperture of these tests is lobed, dentated or irregularly shaped. This group has no taxonomic significance. D. heterodentata D.

Read More »

Difflugia key oblong

Tests that are oblong or clavate in shape Tests are elongate ovate, or club-shaped, or clavate, with the widest part of the shell in the

Read More »

Difflugia acuminate tests

Acuminate tests Tests with one or more spines, a tapering fundus or just a pointed fundus.This group has no taxonomical significance. D. acuminata D. congolensis

Read More »