Adenophorea

Adenophorea or Aphasmidia was a class of nematodes (roundworms). It has been by and large abandoned by modern taxonomy, because there is strong evidence for it being a motley paraphyletic group of unrelated lineages of roundworms.

Characteristics supposed to distinguish Adenophorea are:
 * amphids always post-labial, shape, pore-like to elaborate
 * deirids are not seen
 * phasmids are generally absent
 * hypodermal glands present (excretory?) uninucleate
 * simple non-tubular excretory system when present
 * three caudal glands commonly opening through a spinneret at the tail tip
 * male generally has two testes
 * caudal alae are rare
 * male with supplement glands in a single ventro-median row
 * sensory papillae in cephalic region and along the body
 * generally there are five esophageal glands
 * marine, freshwater, terrestrial

As it seems, a number of these traits are plesiomorphic, and thus unsuitable to discern relationships.