This parasite is one of the smallest endoparasite to infect humans. It is an endoparasite of the European perch. They have been found to be infected with the protozoan endoparasite "Eimeria". It is a migratory endoparasite of roots, causing lesions that form cankers. The wasp "Dinocampus coccinellae" is both an endoparasite and ectoparasite of ladybugs. "Subclytia rotundiventris", is a specialist endoparasite of the parent bug females. Steller also identified an endoparasite in the sea cows, which was likely an ascarid nematode. Alternatively, the parasite may live within the host endoparasite; for example, the fluke. The larva of "C. bifasciata" is an endoparasite. This species is an endoparasite of fish eggs and has a peculiar life cycle. Filicollis anatis is an endoparasite in the Polymorphidae family of thorny-headed worms. "M. enterolobii", a sedentary endoparasite, has very similar morphology as other species of "Meloidogyne". The parasitic barnacle genus "Dendrogaster" is sometimes an endoparasite of the leather star. The parasitic copepod "Asterocheres boecki" is an endoparasite of the black sea cucumber. An endoparasite lives inside the host's body; an ectoparasite lives outside, on the host's surface.