Seguenziidae Verrill, 1884
Fluxinella asceta Marshall, 1991
Fluxinella brychia Marshall, 1991
Fluxinella discula (Dall, 1889)
Fluxinella euphanes Marshall, 1991
Fluxinella gellida (Barnard, 1963)
Fluxinella lenticulosa B.A. Marshall, 1983
Fluxinella lepida B.A. Marshall, 1983
Fluxinella marginata (Schepman, 1909)
Fluxinella megalomphala Marshall, 1991
Fluxinella membranacea B.A. Marshall, 1991
Fluxinella polita Marshall, 1991
Fluxinella runcinata Marshall, 1991
Fluxinella solarium (Barnard, 1963)
Fluxinella stellaris Bozzetti, 2008
Fluxinella stenomphala (Melvill, 1910)
Fluxinella stirophora Marshall, 1991
Fluxinella tenera Marshall, 1991
Fluxinella trochiformis (Schepman, 1909)
Fluxinella vitrea (Okutani, 1968)
Fluxinella xysila Marshall, 1991
