Family STRONGYLIDIIDAE Fauré-Fremiet, 1961

Correction for	Strongylidae;
syn.	Chaetospiridae

Elongate forms, with reduced number of spiraled rows of ventral cirri; some species loricate; found in marine, fresh-water, and edaphic habitats.

Chaetospira Lachmann, 1856 (syn. Stichospira). Several species.
Strongylidium Sterki, 1878. Several species.
Urostrongylum Kahl, 1932. Few species.
Incertae sedis:
Cladotricha Gajewskaja, 1926, possibly several species,
Klonostricha Vuxanovici, 1963, few species.