Subterranean millipedes (Diplopoda) of the Iberian Peninsula

We present a checklist of subterranean millipedes from the Iberian Peninsula. Among the 16 orders of millipedes present worldwide, nine are represented in the Iberian Peninsula, of which five have troglobiont species: Polyxenida, Glomerida, Polydesmida, Chordeumatida and Julida. Currently, 75 species of troglobiont millipedes are known from the Iberian Peninsula, although only 68 have been described so far. Most of this diversity occurs in...