Arten (222)
- Pyxidium fabrei Faure-Fremiet 1905
- Pyxidium henneguyi Faure-Fremiet 1905
- Pyxidium invaginatum Kahl 1935 ssp. muscorum
- Pyxidium nutans Stokes 1889
- Pyxidium tardigradum Van der Land 1964
- Pyxidium longicollum Biegel 1954
- Pyxidium urecolatum Stokes 1886
- Pyxidium vernale Stokes 1887
- Pyxidiella cothurnoides Corliss 1960
- Pyxidium acaule Kahl 1935
- Pyxidium arboricola Biegel 1954
- Pyxidium aselli Penard 1922
- Setonophrys tricorniculata Clamp 1991
- Setonophrys lingulata Kane 1965
- Opercularia arboricolum Biegel 1954
- Opercularia curvicaule Penard 1922
- Epistylis coarctata Claparède & Lachmann 1858
- Epistylis nutans sensu Gajewskaja 1933
- Epistylis nutans Ehrenberg 1831
- Opercularia allensi Stokes 1877
- Opercularia allensi Stokes 1887
- Setonophrys seticola Jankowski 1986