Lecythium granulatus
Lecythium granulatus, 100 µm

Lecythium granulatus (Schulze, 1875)

The photomicrographs on this page show several specimens of Lecythium granulatus which all came from one sample. Those cells mainly preyed on several species of diatoms. Cell with large diatoms could be very large. In these cells the nucleus is pushed aside by the diatom (see image below).

Lecythium granulatus
Lecythium granulatus
Dividing cells?
Lecythium granulatus
Lecythium granulatus
The same cell focused at two different heights
Lecythium granulatus
Cell with filopodia network, branching and anastomosing
Lecythium granulatus
Lecythium granulatus
Three specimens after division
Lecythium granulatus
Lecythium granulatus
Lecythium granulatus
Lecythium granulatus
Pseudostome
Lecythium granulatus
Lecythium granulatus
Two specimens, one is trying to engulf a diatom.
Lecythium granulatus
Specimen with kind of shell, though not fully enveloping the cell
Lecythium granulatus
Two plate-like parts of what seems to be a kind of shell
Lecythium granulatus
Lecythium granulatus
Specimen with ingested zoochlorellae, robbed of a crashed Difflugia pyriformis.
Lecythium granulatus
This specimen showed curious behaviour. The fundus opened and a small speudopodium came out of the cell (see arrow). It moved a little and grew longer, after which it was retracted. It shows the possibility of the membrane to make an aperture.
Recent posts

Raphidocystis glabra

after Zlatogursky et al., 2018 Raphidocystis glabra Dürrschmidt, 1985 Diagnosis: Periplast 40-50 μm in diameter; spine-scales 4.6–15 μm; plate-scales 6-7 × 3-3.5 μm; tiny teeth

Read More »

Raphidocystidae

Raphidocystidae Zlatogursky, 2018 Diagnosis: centrohelids with monolayered plate-scales covering cell surface. Plate-scales with a hollow inflected margin. Sometimes trumpet-shaped or tubular spine-scales present, forming an

Read More »

Planhoogenraadia liboica

P. liboica – from Bonnet, 1979 Planhoogenraadia liboica Bonnet, 1979 Diagnosis: . Test relatively flat, with a dorsal convexity. Shell widest in the center. Aperture deep

Read More »

Deharvengia papuensis

Deharvengia papuensis, after Bonnet, 1979 Deharvengia papuensis  Bonnet, 1979 Diagnosis: Theca large, ovoid, very regular, colorless. Elliptical pseudostome bordered by a thick yellowish lip or

Read More »