The Alluroididae is a small oligochaete family with 8 genera and 13 known species occurring in freshwaters and in riverine soils in Africa, the Caribbean and Central and South America. It is here argued that their anatomy shows a transition from that of microdriles to that of megadriles (Metagynophora). A detailed description of comparative anatomy is given, followed by the systematics and some aspects of the ecology of all known genera, species and subspecies.
Africa
America, Central
America, South
Caribbean region