<==o Chaetodermatidae Theel, 1875 [incl. Crystallophrissonidae]
   |--o Caudofoveatus Ivanov, 1981 [Chrystallophrisson Möbius, 1875]
   |  |-- C. callosus Ivanov, 1984
   |  `-- C. tetradens Ivanov, 1981 [Chaetoderma tetradens (Ivanov, 1981)]
   `--o Chaetoderma Lovén, 1844
      |-- C. adibjanense Scheltema, 1976
      |-- C. akkesiense Okuda, 1943
      |-- C. araucanae Osorio & Tarafeño, 1976
      |-- C. argentum Heath, 1911
      |-- C. bacillum Heath, 1918
      |-- C. californicum Heath, 1911
      |?- C. canadense Nierstrasz, 1902
      |-- C. chistikovi (Ivanov, 1986)
      |-- C. elegans Scheltema, 1997
      |-- C. eruditum Heath, 1911
      |-- C. glacialis (Ivanov, 1986) [Chrystallophrisson glacialis Ivanov, 1986]
      |-- C. hancocki (Schwabl, 1963) [Chrystallophrisson hancocki Schwabl, 1963]
      |-- C. hawaiiense Heath, 1911
      |-- C. indicum (Stork, 1941)
      |-- C. intermedium Knipowitsch, 1896
      |-- C. japonicum Heath, 1911
      |-- C. kafanovi (Ivanov, 1984) [Chrystallophrisson kafanovi Ivanov, 1984]
      |-- C. lucidum Heath, 1918
      |-- C. luitfriedi (Ivanov in Scarlato, 1987)
      |-- C. majusculum Scheltema, 1976
      |-- C. marinae (Ivanov in Scarlato, 1987) [Chrystallophrisson marinae Ivanov in Scarlato, 1987]
      |-- C. marinelli (Schwabl, 1963) [Chrystallophrisson marinelli Schwabl, 1963]
      |-- C. marioni (Stork, 1941)
      |-- C. militare Selenka, 1885
      |-- C. nanulum Heath, 1911 [Chrystallophrisson riedli Schwabl, 1963]
      |-- C. nitidulum Lovén, 1844 [Chaetoderma canadense Nierstrasz, 1902; Chaetoderma vadorum (Heath, 1918);Chrystallophrisson nitens Möbius, 1874; Chaetoderma nitens Möbius, 1874; Chrystallophrisson vadorum Heath, 1918]
      |-- C. orientale (Stork, 1941)
      |-- C. pacificum (Schwabl, 1963) [Chrystallophrisson nitidulus pacificum Schwabl, 1963]
      |-- C. productum Wirén, 1892 [Chrystallophrisson productum (Wirén, 1892)]
      |-- C. recisum (Schwabl, 1963)
      |-- C. rectum (Schwabl, 1963)
      |-- C. robustum Heath, 1911
      |-- C. rubrum (Schwabl, 1963)
      |-- C. scabrum Heath, 1911
      |-- C. scheltemae (Ivanov, 1984)
      |-- C. sibogae (Stork, 1941)
      |-- C. simplex Salvini-Plawen, 1971
      |-- C. squamosum Heath, 1918
      |-- C. strigisquamatum Salvini-Plawen, 1977
      `-- C. unistatum Scheltema, 1989

Reference(s):

 

Special thanks to:

Jos H. M. Dols, for gathering taxonomic information and species of these animals.