- Secernentea
Taxobox
name = Secernentea
image_width = 240px
image_caption = "Caenorhabditis elegans "
regnum =Animal ia
phylum =Nematoda
classis = Secernentea
classis_authority =
subdivision_ranks =Subclass es
subdivision =see textSecernentea are a class of
nematodes characterised by numerouscaudal papillae and anexcretory system possessing lateral canals. They have no circulatory or respiratory system.ystematics
Subclass es and orders of Secernentea are:Subclass
Rhabditia
*Rhabditida
*Strongylida SubclassSpiruria
*Ascaridida - sometimes placed in Rhabditia
*Camallanida - sometimes included in Spirurida
*Drilonematida - sometimes included in Spirurida
*Spirurida SubclassDiplogasteria
*Diplogasterida SubclassTylenchia
*Aphelenchida
*Rhigonematida
*Tylenchida Order "incertae sedis "
*Rhabdiasida
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