Nematoda
Chromadorea
Chromadoria
Monhysterida
Monhysterina
Sphaerolaimoidea

Family Xyalidae

  • Lamyronema

  • Linhomoeus (see Linhomoediae)

  • Linhystera

  • Manganonema

  • Marisalbinema

  • Mesotheristus

  • Metadesmolaimus

  • Mongolotheristus

  • Monhystris

  • Omicronema

  • Paragonionchus

  • Paramonohystera

  • Paramphimonhystrella

  • Parelzalia

  • Penzancia

  • Promonhystera

  • Prorhynchonema

  • Pseudechinotheristus

  • Pseudosteineria

  • Retrotheristus

  • Rhynchonema

  • Robustnema

  • Sacrimarinema                       

  • Scaptrella

  • Sphaerotheristus

  • Spiramphinema

  • Steineria

  • Stylotheristus

  • Theristus

  • Trichotheristus

  • Valvaelaimus

  • Xenolaimus

  • Xyala

  • Zygonemella

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