DipluranThis article is about the hexapod order, for the plant genus see Diplura (Algae)
) are one of the three hexapod
groups that are not insects
. They are entognathous small animals
less than 6 mm in length. Diplurans are eyeless with noticeably long mobile antennae. The three families may be distinguished by the paired cerci at the rear of the body. These are as long as the antennae
in the Campodeidae, pincer-like in the Japygidae, and short and stubby in the Anajapygidae.