page_title: Paradoxosomatidae
section_title: Classification
hierarchical_section_title: Paradoxosomatidae / Classification
caption_attribution_description: English: Three species of Paradoxosomatid millipedes A. Riukiupeltis jamashinai (live from Miyako-jima Island) B Chamberlinius hualienensis (live on Okinawa-jima Island) C Chamberlinius uenoi comb. n.(live on Iriomote-jima Island).
context_page_description: Paradoxosomatidae, the only family in the suborder Paradoxosomatidea, is a family of flat-backed millipedes in the order Polydesmida. Containing nearly 200 genera and 975 species as of 2013, it is one of the largest families of millipedes. Paradoxosomatids occur on all continents except Antarctica, and can generally be distinguished by dorsal grooves on most body segments and a dumb-bell shaped gonopod aperture. Notable groups within the Paradoxosomatidae include the dragon millipedes of Southeast Asia, and the widely introduced Greenhouse Millipede Oxidus gracilis.
context_section_description: The nearly 1000 valid species of paradoxosomatids are divided into three subfamilies and 22 tribes. Most species (over 760) belong to the subfamily Paradoxosomatinae.
  Subfamily Alogolykinae - two tribes, around 60 species, central, south, and southeast Asia
  Alogolykini - Myanmar, China, Vietnam, Nepal
  Polydrepanini - Pakistan, India, Myanmar
  Subfamily Australiosomatinae - three tribes, around 140 species, Southeast Asia and Oceania
  Antichiropodini - Australia, Indonesia
  Aschistodesmini - New Guinea
  Australiosomatini - Australia
  Subfamily Paradoxosomatinae - 17 tribes, around 760 species, worldwide
  Catharosomatini - South America
  Centrodesmini - Indonesia
  Chamberliniini - Taiwan, Japan
  Cnemodesmini - Africa
  Eroonsomatini - Italy, Balkans
  Eustrongylosomatini - New Guinea, Philippines, Micronesia, Solomon Islands, Seychelles
  Eviulisomatini - Africa
  Graphisternini - Peru
  Nedyopodini - Taiwan, Southeast Asia
  Orthomorphini - Southeast Asia, some globally widespread
  Paradoxosomatini - Europe, middle East, Myanmar, China, India
  Sulciferini - Southeast Asia, some globally widespread species
  Sundaninini  - Southeast Asia
  Tectoporini - Southeast Asia
  Tonkinosomatini - Indochina
  Xanthodesmini - Africa, Pakistan
caption: A) Riukiupeltis jamashinai, B) Chamberlinius hualienensis and C) C. uenoi (Paradoxosomatinae Chamberliniini), from Japan
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