Triadwirmer
Triadwirmer of Nematoden (Nematoda, faan griichisk  ‚triad‘) san en stam faan diarten mä amanbi 20.000 slacher.

Det san miast letj witj wirmer, diar't hal wiat an warem haa mei. Fölen lewe üs parasiiten.

Ordern 
Det iindialang tu klasen an onerklasen as ei gans seeker. Man diar san wel son 13 ordern:
 Araeolaimida
 Benthimermithida
 Chromadorida
 Desmodorida
 Desmoscolecida
 Dorylaimia
 Enoplia
 Monhysterida
 Oxyurida
 Plectida
 Rhabditida
 Rhaptothyreida
 Teratocephalida

Enkelt slacher 
 Rhabditida
 Dracunculidae
 Dracunculus
 Guineawirem (Dracunculus medinensis)

Luke uk diar