Phoxichilidiidae Sars, 1891
Pycnosoma batangense Helfer, 1938
Pycnosomia asterophila Stock, J.H., 1981
Pycnosomia coxata Stock, J.H., 1991
Pycnosomia strongylocentroti (Losina-Losinsky, L.K., 1933)
Pycnosomia tuberculata Losina-Losinsky, L.K., 1961
