In a worm of this order, the body tapers towards each end and is marked by a number of well-defined ridges.

Two pigment spots between the fourth and fifth ridges are regarded as eyes.

The Desmoscolecida move by looping their bodies like geometrid caterpillars or leeches, as well as by creeping on their setae.

The testis is single, and its duct opens into the intestine and is provided with two chitinous spicules.

This Chromadorea nematode (or roundworm-) related article is a stub.