MilliBase
Between brackets is the number of accepted extant species
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Shows the number of accepted extant species within the taxon
The last expanded taxon is highlighted
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- Myriapoda (13 583)
- Class Chilopoda (6)
- Class Diplopoda (12 940)
- Subclass Chilognatha (12 779)
- Subclass Penicillata (161)
- Order Polyxenida (161)
- Superfamily Polyxenoidea Lucas, 1840 (148)
- Family Hypogexenidae Schubart, 1947 accepted as Hypogexeninae Schubart, 1947
- Family Lophoproctidae Silvestri, 1897 (43)
- Family Pollyxenidae Lucas, 1840 accepted as Polyxenidae Lucas, 1840
- Family Polyxenidae Lucas, 1840 (105)
- Subfamily Hypogexeninae Schubart, 1947 (1)
- Genus Hypogexenus Silvestri, 1903 (1)
- Species Hypogexenus pusillus Silvestri, 1903
- Subfamily Macroxeninae Condé, 2008 (15)
- Subfamily Monographinae Condé, 2008 (45)
- Subfamily Polyxeninae Lucas, 1840 (39)
- Genus Allographis Silvestri, 1948 accepted as Monographis Attems, 1907
- Genus Ankistroxenus Attems, 1907 (2)
- Genus Apoxenus Chamberlin, 1947 (1)
- Genus Electroxenus Jacquemin-Nguyen Duy & Azar, 2004 †
- Genus Japonixenus Ishii & Tamura, 1995 accepted as Polyxenus Latzel, 1884
- Genus Libanoxenus Jacquemin-Nguyen Duy & Azar, 2004 †
- Genus Mesoxenotus Silvestri, 1948 (1)
- Genus Monoxenus Jones, 1937 accepted as Unixenus Jones, 1944
- Genus Pollyxenus Latreille, 1802 accepted as Polyxenus Latzel, 1884
- Genus Polyxenella Rajulu, 1963 (1)
- Genus Silvestrius [sic] accepted as Silvestrus Jones, 1937
- Genus Unixenis accepted as Unixenus Jones, 1944
- Superfamily Synxenoidea Silvestri, 1923 (13)
- Class Euthycarcinoidea †
- Class Pauropoda (534)
- Class Symphyla (103)
