Nematode

The nematodes or roondwirms constitute the phylum Nematoda.^[2][3] Thay are a diverse ainimal phylum inhabitin a broad range o environs. Nematode species can be difficult tae distinguish, an awtho ower 25,000 hae been describit,^[4][5] o which mair nor hauf are paraseetic, the tot nummer o nematode species haes been estimatit tae be aboot 1 million.^[6]

Roondwirms Temporal range: Precambrian–Recent [1] PreЄ Є O S D C P T J K Pg N
Caenorhabditis elegans, a model species of roundworm
Scientific classification
Kinrick:	Animalia
Clade:	Nematoida
Phylum:	Nematoda Diesing, 1861
Classes
Chromadorea Enoplea Secernentea Dorylaimea (see text)
Synonyms
Nematodes Burmeister, 1837 Nematoidea sensu stricto Cobb, 1919 Nemates Cobb, 1919 Nemata Cobb, 1919 emend.