Lieberkuehnia wageneri
Lieberkuehnia wageneri - Original drawing Hoogenraad & De Groot, 1940, collection Ferry Siemensma

 

 

Genus Lieberkuehnia Claparède et Lachmann, 1859

 

Diagnosis: Test flexible and membranous with ovoid, ellipsoidal or pyriform shape, length 32-900 µm. Single terminal aperture with internal septum separating pseudopodial peduncle from the internal cytoplasm. Large pseudopodial network, 350-1800 µm and more in extent, emerging from the peduncle and from the thin layer of cytoplasm enveloping the test. Cytoplasm sometimes yellowish or greenish, multinucleate, with 30-200 nuclei with up to ten nucleoli, or completely granulated. Numerous contractile vacuoles and food vacuoles. Reproduction by binary and multiple fission.

 

Ecology: on algae in freshwater and marine habitats, in submerged mosses and moss. Europe.

 

Remarks: It is likely that there are several undescribed species. Only sequencing can reveal that diversity.

 

References: Mrva, M.: Re-discovery of Lieberkuehnia wageneri Claparède et Lachmann, 1859 (Rhizaria, Foraminifera): Taxonomical and Morphological Studies Based on a Slovak Population - Acta Protozool. (2009) 48: 111-117.