- "Ca. E. avistercoris" Gilroy et al. 2021
- E. brachy Holdeman et al. 1980
- E. cellulosolvens (Bryant et al. 1958) Holdeman & Moore 1972
- E. coprostanoligenes Freier et al. 1994
- "Ca. E. faecale" Gilroy et al. 2021
- "Ca. E. faecavium" Gilroy et al. 2021
- "Ca. E. faecigallinarum" Gilroy et al. 2021
- "Ca. E. faecipullorum" Gilroy et al. 2021
- E. hominis Liu et al. 2022
- E. infirmum Cheeseman et al. 1996
- E. multiforme (Distaso 1911) Holdeman & Moore 1970
- E. nodatum Holdeman et al. 1980
- E. oxidoreducens corrig. Krumholz & Bryant 1986
- E. plexicaudatum Wilkins, Fulghum & Wilkins 1974
- E. pyruvativorans Wallace et al. 2003
- E. ramulus Moore, Johnson &Holdeman 1976
- E. ruminantium Bryant 1959
- E. saphenum corrig. Uematsu et al. 1993
- "E. segne" Liu et al. 2021
- E. siraeum Moore, Johnson & Holdeman 1976
- E. sulci (Cato, Moore & Moore 1985) Jalava & Eerola 1999
- E. tardum Cheeseman et al. 1996 [E. minutum Poco et al. 1996 non (Hauduroy et al. 1937) Prévot 1938]
- E. tenue (Bergey et al. 1923) Holdeman & Moore 1970
- E. uniforme van Gylswyk & van der Toorn 1985
- E. ventriosum (Tissier 1908) Prévot 1938
- E. xylanophilum van Gylswyk & van der Toorn 1985
- E. yurii Margaret & Krywolap 1986
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- "E. acidiformans" Huang et al. 2024
- "E. albensis" Wallace et al. 1998
- E. album Liu et al. 2024
- "E. difficile" Liu et al. 2021
- "E. pectinii" Mountfort et al. 1993
- "E. rangiferina" Sundset et al. 2008
- "E. thermomarinus" Pledger et al. 1995
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