1. Subfamily Agnesiinae Knight, 1956 †
   1. Tribe Agnesiini Knight, 1956 †
      1. Genus Agnesia de Koninck, 1883 †
         1. Species Agnesia acuta (J. Phillips, 1836) †
         2. Species Agnesia prosseri Hyde, 1953 †
         3. Species Agnesia reticulata Yoo, 1994 †
         4. Species Agnesia thomsoni de Koninck, 1883 † accepted as Hesperiella thomsoni (de Koninck, 1883) † (unaccepted > superseded combination)
   2. Genus Alaskiella Frýda & Blodgett, 1998 †
   3. Tribe Anoriostomatini Frýda & Farrell, 2005 †
      1. Genus Anoriostoma Farrell, 1992 †
         1. Species Anoriostoma sinistra Farrell, 1992 †
   4. Genus Garraspira Frýda & Farrell, 2005 †
      1. Species Garraspira inusitata (Farrell, 1992) †
   5. Genus Hesperiella Holzapfel, 1889 †
      1. Species Hesperiella contraria (de Koninck, 1843) †
      2. Species Hesperiella elongata Yoo, 1994 †
      3. Species Hesperiella planorbis Yoo, 1994 †
      4. Species Hesperiella robertsi Yoo, 1988 †
      5. Species Hesperiella thomsoni (de Koninck, 1883) †
      6. Species Hesperiella urumqiensis X.-D. Qiao, 1983 † (uncertain > unassessed)
      7. Species Hesperiella xinjangensis X.-D. Qiao, 1983 † (uncertain > unassessed)
   6. Genus Koneprusellia Frýda, 1998 †
   7. Genus Paragnesia Blodgett & Frýda, 1999 †
      1. Species Paragnesia costata (Goldfuss, 1844) †
   8. Genus Pauquysia Frýda, 2004 †
   9. Genus Pernericirrus Frýda, 1997 †
   10. Genus Sasakiela Bandel & Frýda, 2004 †
   11. Genus Trochagnesia Heidelberger, 2001 †
2. Genus Faxetrochus Schnetler & Lozouet, 2012 †
   1. Species Faxetrochus problematicus Schnetler & Lozouet, 2012 †
3. Subfamily Porcelliinae Koken, 1895 †
   1. Genus Porcellia Léveillé, 1835 †
      1. Species Porcellia lingshuiensis Y.-T. Pan, 1985 †
      2. Species Porcellia magninodosa Y.-T. Pan, 1985 †
      3. Subgenus Porcellia (Tremanotus) J. Hall, 1865 † accepted as Tremanotus J. Hall, 1865 † (unaccepted > superseded rank)
         1. Species Porcellia (Tremanotus) alpheus J. Hall, 1865 † accepted as Tremanotus alpheus (J. Hall, 1865) † (unaccepted > superseded combination)
      4. Species Porcellia fischeri M. Hörnes, 1855 † accepted as Kokenella fischeri (M. Hörnes, 1855) † (unaccepted > superseded combination)
      5. Species Porcellia paucituberculata Y.-T. Pan & Erwin, 2002 † accepted as Porcellia magninodosa Y.-T. Pan, 1985 † (a junior synonym)
      6. Species Porcellia shipingensis F. Guo, 1983 † accepted as Neimongolidiscus shipingensis (F. Guo, 1983) † (unaccepted > superseded combination)
      7. Subgenus Porcellia (Porcellia) Léveillé, 1835 † represented as Porcellia Léveillé, 1835 †
         1. Species Porcellia (Porcellia) lingshuiensis Y.-T. Pan, 1985 † represented as Porcellia lingshuiensis Y.-T. Pan, 1985 †
         2. Species Porcellia (Porcellia) magninodosa Y.-T. Pan, 1985 † represented as Porcellia magninodosa Y.-T. Pan, 1985 †

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