Family Unionicolidae Oudemans, 1909
   Genus Unionicola Haldeman, 1842
     .01 Subgenus Unionicola (Hexatax) Thor, 1926
     .02 Subgenus Unionicola (Polyatax) Viets, 1933
     .03 Subgenus Unionicola (Atacella) Lundblad, 1937
     .04 Subgenus Unionicola (Polyatacides) Lundblad, 1941
     .05 Subgenus Unionicola (Heteratax) Lundblad, 1941
     .06 Subgenus Unionicola (Unionicolella) Lundblad, 1941
     .07 Subgenus Unionicola (Bassatax) Cook, 1966
     .08 Subgenus Unionicola (Giselatax) Viets, 1975
     .09 Subgenus Unionicola (Unionicolopsis) Viets, 1980
     .10 Subgenus Unionicola (Armatax) Bader, 1981
     .11 Subgenus Unionicola (Ampullariatax) Vidrine, 1985
     .12 Subgenus Unionicola (Berezatax) Vidrine, 1985
     .13 Subgenus Unionicola (Australatax) Vidrine, 1985
     .14 Subgenus Unionicola (Kovietsatax) Vidrine, 1986
     .15 Subgenus Unionicola (Cookatax) Vidrine, 1986
     .16 Subgenus Unionicola (Baderatax) Vidrine, 1988
     .17 Subgenus Unionicola (Heversatax) Vidrine, 1988
     .18 Subgenus Unionicola (Lundbladatax) Vidrine, 1988
     .19 Subgenus Unionicola (Ferradasatax) Vidrine, 1988
     .20 Subgenus Unionicola (Crameratax) Vidrine, 1988
     .21 Subgenus Unionicola (Mitchellatax) Vidrine, 1992
     .22 Subgenus Unionicola (Everittatax) Vidrine, 1992
     .23 Subgenus Unionicola (Poundsatax) Vidrine, 1992
     .24 Subgenus Unionicola (Wilsonatax) Vidrine, 1992
     .25 Subgenus Unionicola (Bakeratax) Vidrine, 1992
     .26 Subgenus Unionicola (Gledhillatax) Vidrine, 1992
     .27 Subgenus Unionicola (Davidsatax) Vidrine, 1992
     .28 Subgenus Unionicola (Downesatax) Vidrine, 1992
     .29 Subgenus Unionicola (Lasalleatax) Vidrine, 1992
     .30 Subgenus Unionicola (Conroyatax) Vidrine, 1992
     .31 Subgenus Unionicola (Curryatax) Vidrine, 1992
     .32 Subgenus Unionicola (Edwardsatax) Vidrine, 1992
     .33 Subgenus Unionicola (Crowellatax) Vidrine, 1992
     .34 Subgenus Unionicola (Australionicola) Smit, 1992
     .35 Subgenus Unionicola (Majumderatax) Vidrine, 1993
     .36 Subgenus Unionicola (Causeyatax) Vidrine, 1994
     .37 Subgenus Unionicola (Breaudatax) Vidrine, 1994
     .38 Subgenus Unionicola (Chambardicola) Vidrine, Borsari & Bastian-Stanford, 2005
     .39 Subgenus Unionicola (Hyricola) Vidrine, Bogan & Hazelton-Robichaux, 2007
     .40 Subgenus Unionicola (Coelaturicola) Vidrine, Lötter, Van As, Bogan & Bastian-Stanford, 2007
     .41 Subgenus Unionicola (Vidrineatax) Smit, 2008
     .42 Subgenus Unionicola (Geikienicola) Smit, 2008
     .43 Subgenus Unionicola (Vidrinatax) Wen, Hu & Zhu, 2009
     .44 Subgenus Unionicola (Vietsatax) Uchida & Imamura, 1938
     1 Subgenus Unionicola (Mutelicola) Gledhill & Vidrine, 2002
     2.1 Subgenus Unionicola (Iridinicola) Vidrine, Lötter, Van As, Bastian-Stanford & Hazelton-Robichaux, 2006
     2.2.1.1.1.1 Subgenus Unionicola (Wolcottatax) Vidrine, 1993
     2.2.1.1.1.2 Subgenus Unionicola (Dimockatax) Vidrine, 1993
     2.2.1.1.2.1 Subgenus Unionicola (Unionicolides) Lundblad, 1937
     2.2.1.1.2.2.1 Subgenus Unionicola (Gibbosulicola) Chapurina, Bolotov, Vidrine, Kondakov & Vikhrev, 2021
     2.2.1.1.2.2.2 Subgenus Unionicola (Fulleratax) Vidrine, 1984
     2.2.1.1.2.3 Subgenus Unionicola (Myanmaratax) Chapurina, Vidrine, Kondakov, Vikhrev & Bolotov, 2022
     2.2.1.2.1.1 Subgenus Unionicola (Clarkatax) Vidrine, 1994
     2.2.1.2.1.2 Subgenus Unionicola (Neoatax) Lundblad, 1941
     2.2.1.2.2.1.1 Subgenus Unionicola (Pentatax) Thor, 1922
     2.2.1.2.2.1.2 Subgenus Unionicola (Imamuratax) Vidrine, 1994
     2.2.1.2.2.2 Subgenus Unionicola (Anodontinatax) Vidrine, 1986
     2.2.2.1 Subgenus Unionicola (Prasadatax) Vidrine, 1993
     2.2.2.2 Subgenus Unionicola (Unionicola) Haldeman, 1842