Ecdysozoa (ecdysis; no cilia for
locomotion; terminal mouth)
Cycloneuralia - Nematoda
Roundworm
Cycloneuralia - Nematomorpha
Horsehair worm
Cycloneuralia - Priapulida
Penis worm
Cycloneuralia - Kinorhyncha
Mud dragon
Cycloneuralia - Loricifera
Panarthropoda - Onychophora
Velvet worm
Panarthropoda - Tardigrada
Water bear