Nematomorpha
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Nematomorpha are a phylum of parasitoid animals similar to yet distinct from nematode worms in morphology, hence the name. Most species range in size from 5 to 10 centimetres, reaching 2 metres in ext
Spinochordodes tellinii and its Meconema host
Mermithid worm (Phylum Nematoda), often confused with horsehair worms (Phylum Nematomorpha). Dark structures are eggs, not seen in horsehair worms. Germany 2021.
Nematode
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The nematodes, roundworms or eelworms constitute the phylum Nematoda. Species in the phylum inhabit a broad range of environments. Most species are free-living, feeding on microorganisms, but many are
Eophasma jurasicum, a fossilized nematode
Rhabditia
Unidentified Anisakidae (Ascaridina: Ascaridoidea)