Bdelloura candida (Girard, 1850)
Bdelloura fusca Dalyell, 1814 (unaccepted )
Bdelloura longiceps (Duges, 1830) (unaccepted )
Bdelloura parasitica Leidy, 1851 accepted as Bdelloura candida (Girard, 1850)
Bdelloura propinqua Wheeler, 1894
Bdelloura rustica Leidy, 1851 (unaccepted )
Bdelloura wheeleri Wilhelmi, 1909
Nerpa evelinae Marcus, 1948
Nerpa fistulata Wang & Chen, 2019
Pentacoelum caspicum Beklemischev, 1954
Pentacoelum caspium Beklemischev, 1954 accepted as Pentacoelum fucoideum Westblad, 1935
Pentacoelum fucoideum Westblad, 1935
Pentacoelum hispaniense Sluys, 1989
Pentacoelum hispaniensis Sluys, 1989
Pentacoelum kazukolinda (Kawakatsu & Mitchell, 1984)
Pentacoelum punctatum (Brandtner, 1935)
Pentacoelum sinensis He, Zhao, Ning, Zhuang, Zhang & Wang, 2016
Syncoelidium pellucidum Wheeler, 1894