Subterclass
Colobognatha (Fungivorous millipedes)
Octoglena bivirgatum. Photo: (c) Marshal Hedin, some rights reserved (CC BY-SA)
Colobognatha is a clade (formally considered a subterclass) of helminthomorph millipedes containing four orders: Platydesmida, Polyzoniida, Siphonocryptida, and Siphonophorida.