Reference

Ilse Foissner, Wilhelm Foissner (1993): Revision of the family Spironemidae #Doflein# (Protista, Hemimastigophora), with description of two new species, *Spironema terricola* n. sp. and *Stereonema geiseri* n. g., n. sp. – J. Euk. Microbiol. – 40: 422 - 438.