Chamaesomatidae

Chamaesomatidae is a family of millipedes belonging to the order Chordeumatida. These millipedes range from 3.3 mm to 12 mm in length and are found in Europe and North Africa. Adult millipedes in this family have 26, 28, or 30 segments (counting the collum as the first segment and the telson as the last). This family includes the species Chamaesoma broelemanni, notable as one of only a few chordeumatidan species with only 26 segments in adults, four fewer segments than typically found in adults in this order. The adult female of this species has only 42 pairs of legs, and the adult male has only 40 pairs of walking legs, excluding two pairs of gonopods.

Genera:
 * Asturasoma Mauriès, 1982
 * Chamaesoma Ribaut & Verhoeff, 1913
 * Krauseuma Mauriès & Barraqueta, 1985
 * Marboreuma Mauriès, 1988
 * Meinerteuma Mauriès, 1982
 * Speudosoma Ribaut, 1927
 * Xystrosoma Ribaut, 1927