Species (205)
- Boveria subcylindrica ssp. concharum
- Boveria subcylindrica Stevens 1901 ssp. subcylindrica
- Histiobalantium natans Clap. & Lachm. 1858
- Sathrophilus arenicolus Dragesco 2002
- Anophrys vermiformis Powers 1933
- Anophrys echini Di Mauro 1904
- Calyptotricha lanuginosum Penard 1922
- Cyclidium elongatum Schewiakoff 1889
- Sathrophilus vernalis Dragesco & Groliere 1969
- Cyclidium glaucoma Müller 1773 ssp. glaucoma
- Ciclidium glaucoma
- Histiobalantium viridis
- Anophrys salmacida
- Anophrys sacrophaga Rees
- Cyclidium arboreum
- Cyclidium abscissum
- Cyclidium arborum
- Cyclidium bergeri
- Cyclidium bulla
- Cyclidium chlorelligera Lepsi 1957
- Cyclidium claprèdi
- Cyclidium citrulus Cohn 1866
- Cyclidium curvata
- Cyclidium cytrulus
- Cyclidium crassum
- Cyclidium distortum
- Cyclidium hepatrichum Schewiakoff 1893
- Cyclidium limetosum
- Cyclidium glaucoma Schewiakoff 1889 ssp. elongatum
- Cyclidium nucleus
- Cyclidium setiger
- Cyclidium saltans
- Cyclidium sphagnetorum Sramek-Husek
- Cyclidium stercoris Powers 1935
- Cyclidium citrullus Cohn 1866
- Cyclidium citrellus
- Cyclidium nodulosum
- Cyclidium porcatum
- Cyclidium lineatum
- Cyclidium rostratum
- Protocyclidium muscicola Kahl 1931
- Cyclidium bonneti
- Cardiastomatella mononucleata Dragesco 1963
- Loxocephalus pelagicus Ruttner 1937
- Loxocephalus foissneri Dragesco & Dragesco-Kerneis 1991
- Cyclidium galucoma
- Dexiotricha tranquilla Kahl 1926
- Anophrys sarcophaga sensu Rees 1884
- Anophrys sarcophaga Cohn 1866
- Cardiostoma mononucleata Dragesco 1963
- Cardiostomatella minuta Dragesco 1965
- Cardiostomatella mononucleata Dragesco 1963
- Histiobalantium majus Kahl 1931
- Histiobalantium marinum Kahl 1933
- Histiobalantium marinum Kahl 1933 ssp. marinum
- Histiobalantium natans Claparede & Lachmann 1858
- Histiobalantium minor
- Cyclidium varibonneti Song 2000
- Loxocephalus singulare Kahl 1926
- Histiobalantium marinum Kahl 1933 ssp. major
- Cardiostomatella vermiformis Kahl 1928
- Anophrys sarcophag Cohn 1866
- Baikalothigma viride Jankowski 1982
- Cyclidium sp.
- Boveria stevensi
- Protocyclidium terricola Kahl 1931
- Apocyclidium obliquum Kahl 1926
- Cochliophilus depressus Kozloff 1945
- Cochliophilus minor Kozloff 1945
- Loxocephalus annulatus Kahl 1926
- Loxocephalus colpidiopsis Kahl 1926
- Loxocephalus ellipticus Kahl 1931
- Loxocephalus intermedius Kahl 1928
- Loxocephalus halophilus Kahl 1931
- Loxocephalus granulosus Kent 1881
- Loxocephalus lucidus Smith 1897
- Loxocephalus luridus Eberhard 1862
- Loxocephalus moniligranulatus Kahl 1926
- Loxocephalus plagius Stokes 1885
- Loxocephalus simplex Penard 1922
- Loxocephalus singularis Kahl 1926
- Loxocephalus tranquillus Kahl 1926
- Miamiensis avidus Thompson & Moewus 1964
- Baikalothigma viridis Jankowski 1982
- Balanonema biceps Penard 1922
- Balanonema dubium Penard 1922
- Balanonema sapropelica Foissner 1978
- Boveria labialis Ikeda & Ozaki 1918
- Boveria tapetis Delphy 1938
- Boveria subcylindrica Stevens 1901
- Boveria teredini Nelson 1923
- Boveria teredinidi Pickard 1927
- Calyptotricha lanuginosa Penard 1922
- Cardiostoma vermiforme Kahl 1928
- Cardiostomatella vermiforme Kahl 1928
- Dexiotricha centralis Stokes 1885
- Dexiotricha granulosa Kent 1881
- Dexiotricha colpidiopsis Kahl 1926
- Dexiotricha plagia Stokes 1885
- Dexiotricha tranquillus Kahl 1926