Chaetonotida

The Chaetonotida is an order of gastrotrichs. They generally have a tenpin or bottle-like shape.

Chaetonotids inhabit both freshwater and marine environments. They can be distinguished from other gastrotrichs by the absence of pores in the pharynx, and by the presence of adhesive glands at the posterior end of the animal only. Most freshwater species are parthenogenetic.