Limnogromia sinensis
Limnogromia sinensis

 

 

Limnogromia sinensis Siemensma et al., 2017

 

Diagnosis: Test cilindrical, agglutinated, chitinoid, encrusted with a large number of extremely small silicous xenosomes; pseudostome pliable and flexible, neck can bend very strongly. Multinucleate, up to 200 nuclei; nuclei very small, usually spherical, but also ovoid, with pieces of nucleolar material laying close to the nuclear membrane.

 

Dimensions: 235-411 µm long  (mean 345 µm) and 65-75 µm broad (n-11); nuclei, 6-8 6.0-8.2 µm in diameter.

 

Ecology: Siemensma found 11 specimens in a sample from sediment of a shallow pond in the city of Yangshuo, China (2015). One specimen which he compressed till the plasm came out of the shell, contained up to 150 nuclei, 6.0-8.2 µm in diameter.

Observed food: diatoms, blue algae.

 

Limnogromia sinensis
Typical shape
Limnogromia sinensis
Limnogromia sinensis
Shell and nucleus
Limnogromia sinensis
Limnogromia sinensis
Within some minutes the neck of this specimen bends strongly
Limnogromia sinensis
Filopodial network with bidirectional streaming
Limnogromia sinensis
Shell with some granulopodia
Limnogromia sinensis
Somewhat compressed cell, thus showing some food particles: blue algae (green) and diatoms (yellow)