- Chelifer, genus Chelifer - a genus of Chelonethida
--1 is a kind of arthropod genus
--1 is a member of
--1 has members: book scorpion, Chelifer cancroidesChelonethida, order Chelonethida, Pseudoscorpionida, order Pseudoscorpionida, Pseudoscorpiones, order Pseudoscorpiones