Animal parasitic species
Parasites of skin, eyes, vascular systems and muscles of vertebrates - birds, kangaroos, wallabies, reindeer, humans.
Head with or without cuticular straition, papillae or bristles.
Alimentary tract obscure
Vulva near mid-body,
Males, when present, have a single spicule. Unknown in some genera.
Ref: Spratt, 2013.