• Mohnia Friele, 1879
• Mohnia (Tacita) Lus, 1971 accepted as Tacita Lus, 1971 accepted as Bayerius Olsson, 1971
• Mohnia (Tacita) blakei (A. E. Verrill, 1885) accepted as Mohnia blakei (A. E. Verrill, 1885)
• Mohnia abyssorum (P. Fischer, 1884)
• Mohnia attenuata A. N. Golikov & Gulbin, 1977 accepted as Retifusus attenuatus (A. N. Golikov & Gulbin, 1977)
• Mohnia bella (Ozaki, 1958) accepted as Retimohnia bella (Ozaki, 1958)
• Mohnia blakei (A. E. Verrill, 1885)
• Mohnia buccinoides Dall, 1913 accepted as Retifusus buccinoides (Dall, 1913)
• Mohnia caelata (A. E. Verrill, 1880) accepted as Retimohnia caelata (A. E. Verrill, 1880)
• Mohnia carolinensis (A. E. Verrill, 1884)
• Mohnia clarki Dall, 1907 accepted as Retimohnia clarki (Dall, 1907)
• Mohnia corbis Dall, 1913 accepted as Fusipagoda corbis (Dall, 1913)
• Mohnia dalli (Friele, 1881)
• Mohnia danielsseni (Friele, 1879)
• Mohnia daphnelloides Okutani, 1964 accepted as Retifusus daphnelloides (Okutani, 1964)
• Mohnia exquisita Dall, 1913 accepted as Fusipagoda exquisita (Dall, 1913)
• Mohnia frielei Dall, 1891 accepted as Retimohnia frielei (Dall, 1891)
• Mohnia glypta (A. E. Verrill, 1882) accepted as Retimohnia glypta (A. E. Verrill, 1882)
• Mohnia hondoensis Dall, 1913 accepted as Retimohnia hondoensis (Dall, 1913)
• Mohnia iturupa A. N. Golikov & Sirenko, 1998 accepted as Retifusus iturupus (A. N. Golikov & Sirenko, 1998)
• Mohnia iwateana Tiba, 1981 accepted as Retimohnia bella (Ozaki, 1958)
• Mohnia japonica Dall, 1913 accepted as Retimohnia micra (Dall, 1907)
• Mohnia kaicherae Petuch, 1987 accepted as Manaria fusiformis (Clench & Aguayo, 1941)
• Mohnia krampi (Thorson, 1951)
• Mohnia kurilana Dall, 1913 accepted as Pseudomohnia kurilana (Dall, 1913)
• Mohnia micra Dall, 1907 accepted as Retimohnia micra (Dall, 1907)
• Mohnia mohni (Friele, 1877)
• Mohnia multicostata T. Habe & Ki. Ito, 1965 accepted as Retimohnia bella (Ozaki, 1958)
• Mohnia okhotskana Tiba, 1981 accepted as Retifusus olivaceus (Bartsch, 1929)
• Mohnia parva (A. E. Verrill & S. Smith, 1882)
• Mohnia robusta Dall, 1913 accepted as Retimohnia robusta (Dall, 1913)
• Mohnia similis A. N. Golikov & Gulbin, 1977 accepted as Retifusus similis (A. N. Golikov & Gulbin, 1977)
• Mohnia simplex (A. E. Verrill, 1884)
• Mohnia siphonoides Dall, 1913 accepted as Latisipho siphonoides (Dall, 1913)
• Mohnia sordida Dall, 1907 accepted as Retimohnia sordida (Dall, 1907)
• Mohnia tenuis (Okutani, 1966) accepted as Pararetifusus tenuis (Okutani, 1966)
• Mohnia toyamana Tiba, 1981 accepted as Retifusus toyamanus (Tiba, 1981)
• Mohnia vernalis Dall, 1913 accepted as Retimohnia vernalis (Dall, 1913)
• Mohnia virens (Dall, 1877) accepted as Retifusus virens (Dall, 1877)
• Mohnia yanamii (Yokoyama, 1926) accepted as Retifusus virens (Dall, 1877)
• Sipho (Mohnia) Friele, 1879 accepted as Mohnia Friele, 1879
• Sipho (Mohnia) caelatulus A. E. Verrill, 1884 accepted as Retimohnia caelata (A. E. Verrill, 1880)
• Sipho (Mohnia) simplex A. E. Verrill, 1884 accepted as Mohnia simplex (A. E. Verrill, 1884)