Polyxenidae

{{Short description|Family of millipedes}}

{{Use dmy dates|date=November 2017}}

{{Automatic taxobox

| fossil_range = {{fossilrange|Barremian|Present}}

| image = The strangest millipede ever ... (8053641856).jpg

| image_caption = Polyxenus lagurus

| taxon = Polyxenidae

| authority = Lucas, 1840

}}

File:ZooKeys-Unixenus.jpg from Australia. Scale bars = 0.5 mm.]]

Polyxenidae is a family of millipedes in the order Polyxenida containing approximately 47 species in 19 genera.{{cite web|last=Spelda|first=J|title=SysMyr: Systematic Myriapod Database (version Apr 2013).|url=http://www.catalogueoflife.org/col/browse/tree/id/14815987|work=Species 2000 & ITIS Catalogue of Life, 17th October 2013|accessdate=24 October 2013}}{{cite book|last=Shear|first=W.|chapter=Class Diplopoda de Blainville in Gervais, 1844 |title=Animal biodiversity: an outline of higher-level classification and survey of taxonomic richness|year=2011|journal=Zootaxa |volume=3148 |isbn=978-1-86977-850-7|pages=159–164|chapter-url=http://www.mapress.com/zootaxa/2011/f/zt03148p164.pdf|editor=Zhang, Z.-Q.}} All adults in this family have 13 pairs of legs.{{Cite journal|last1=Enghoff|first1=Henrik|last2=Golovatch|first2=Sergei|last3=Short|first3=Megan|last4=Stoev|first4=Pavel|last5=Wesener|first5=Thomas|date=2015-01-01|title=Diplopoda — taxonomic overview|url=https://brill.com/view/book/edcoll/9789004188273/B9789004188273_017.xml|journal=Treatise on Zoology - Anatomy, Taxonomy, Biology. The Myriapoda, Volume 2|language=en|pages=363–453|doi=10.1163/9789004188273_017|isbn=9789004188273 |url-access=subscription}}