Polyxenida

species of myriapod

thumb|Segmentation of Polyxenida millipedes. From top to bottom:Lophoturus madecassusOther [[Lophoproctidae and PolyxenidaeCondexenus biramipalpus and Phryssonotus brevicapensisOther Phryssonotus ]]

thumb|Four species of Unixenus from Australia. Scale bars = 0.5 mm.

Lophoproctidae is a family of millipedes in the order Polyxenida containing approximately 43 species in 6 genera.

Synxenidae is a family of bristle millipedes (Polyxenida). Three genera and around 10 species are known. Adult synxenids possess 15 or 17 pairs of legs, with the last two pair modified for small jumps. Adults in most species in this family have 17 pairs of legs, but in two species (Condexenus biramipalpus and Phryssonotus brevicapensis), they have only 15 pairs of legs.

genus of myriapods

Phryssonotus is a genus of bristle millipedes containing around nine extant species. Species are characterized by the possession of dark, rear-projecting scale-shaped bristles (trichomes) on the tergites; all other bristles are long and hairlike. Adults in this genus have 17 pairs of legs, except for the species Phryssonotus brevicapensis, in which they have only 15 pairs of legs.

species of myriapod

Monographis is a terrestrial genus of millipede in the family Polyxenidae comprising 10 species.