Echinorhynchida

Echinorhynchida
Rhadinorhynchus sp.
Scientific classification
Kingdom:	Animalia
Subkingdom:	Eumetazoa
(unranked):	Bilateria
Superphylum:	Platyzoa
Phylum:	Acanthocephala
Class:	Palaeacanthocephala
Order:	Echinorhynchida Petrochenko, 1956
Families
Arhythmacanthidae Cavisomidae Diplosentidae Echinorhynchidae Fessisentidae Heteracanthocephalidae Hypoechinorhynchidae Illiosentidae Polyacanthorhynchidae Pomphorhynchidae Rhadinorhynchidae

Echinorhynchida are an order of parasitic worms from the phylum Acanthocephala.