Description of Rhogostoma
provided by BioPedia
Test: thin, flexible, transparent membrane, subspherical, compressed, no attached material. Pseudostome: a slit at end of oval invagination of test, perpendicular to the compression. Plasma fills the test completely, vesicular nucleus. Division longitudinal. open orthomitosis, nucleolus disintegrates. Feeding: bacteria. Habitat: freshwater debris, mosses, manure. Two species: Rhogostoma schuessleri Belar, 1921. According to Simitzis & Le Goff (1981) a species complex.
