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Genus Tracheleuglypha

Shell is ovoid, cross-section is circular, covered by large, circular overlapping idiosomes; colourless, transparent. Aperture is terminal, circular, sometimes may be surrounded by a small denticulate collar made of the organic material of the shell. Nucleus is ovular. Ecology: freshwater, moss and soil. Type species: Tracheleuglypha dentata Deflandre, 1938