Secernentea

style="background:#Template:Taxobox colour;"|Secernentea
Caenorhabditis elegans Caenorhabditis elegans
style="background:#Template:Taxobox colour;" | Scientific classification
Kingdom: Animalia Phylum: Nematoda Class: Secernentea
Subclasses
see text

Secernentea are a class of nematodes characterised by numerous caudal papillae and an excretory system possessing lateral canals. They have no circulatory or respiratory system.

Systematics

Subclasses and orders of Secernentea are:

Subclass Rhabditia

• Rhabditida
• Strongylida

Subclass Spiruria

• Ascaridida - sometimes placed in Rhabditia
• Camallanida - sometimes included in Spirurida
• Drilonematida - sometimes included in Spirurida
• Spirurida

Subclass Diplogasteria

• Diplogasterida

Subclass Tylenchia

• Aphelenchida
• Rhigonematida
• Tylenchida

Order incertae sedis

• Rhabdiasida