Echinorhynchidae is a family of acanthocephalan parasitic worms from the order Echinorhynchida. The adult worms live in the intestines of fishes, amphibians and reptiles. The family contains the following genera; \n* Acanthocephalus \n* Anuracanthorhynchus Bursey, Vrcibradic, Hatano et Rocha, 2006 \n* Brasacanthus Thatcher, 2001 \n* Circinatechinorhynchus Bhattacharya, 2007 \n* Echinorhynchus \n* Frilloechinorhynchus Gupta et Naqvi, 1986 \n* Pilum Williams, 1976 \n* Pseudoacanthocephalus