Adagnesia Kott, 1963 (basis of record)
Agnesiidae Huntsman, 1912 accepted as Agneziidae Monniot C. & Monniot F., 1991 (basis of record)
Agnezia Monniot C. & Monniot F., 1991 (additional source)
Alloeocarpa Michaelsen, 1900 (basis of record)
Aplidiopsis Lahille, 1890 (basis of record)
Aplidium Savigny, 1816 (basis of record)
Aplidium caeruleum (Sluiter, 1906) (basis of record)
Aplousobranchia (basis of record)
Ascidia Linnaeus, 1767 (basis of record)
Ascidiidae Herdman, 1882 (additional source)
Bathyoncus Herdman, 1882 (basis of record)
Bathyoncus mirabilis Herdman, 1882 (basis of record)
Bathystyeloides Seeliger, 1907 (basis of record)
Bathystyeloides enderbyanus (Michaelsen, 1904) (basis of record)
Boltenia Savigny, 1816 (basis of record)
Botryllus Gaertner, 1774 (basis of record)
Ciona Fleming, 1822 (basis of record)
Cionidae Lahille, 1887 (basis of record)
Clavelina Savigny, 1816 (basis of record)
Clavelinidae Forbes & Hanley, 1848 (basis of record)
Cnemidocarpa Huntsman, 1913 (basis of record)
Cnemidocarpa bathyphila Millar, 1955 (basis of record)
Cnemidocarpa bythia (Herdman, 1881) (basis of record)
Cnemidocarpa digonas Monniot C. & Monniot F., 1968 (basis of record)
Corella Alder & Hancock, 1870 (basis of record)
Corellidae Lahille, 1888 (additional source)
Corynascidia Herdman, 1882 (basis of record)
Corynascidia hartmeyeri Monniot C. & Monniot F., 1994 (basis of record)
Corynascidia suhmi Herdman, 1882 (basis of record)
Culeolus Herdman, 1881 (basis of record)
Cystodytes Drasche, 1884 (basis of record)
Dendrodoa MacLeay, 1824 (basis of record)
Dendrodoa aggregata Müller, 1776 (basis of record)
Dicarpa Millar, 1955 (basis of record)
Didemnidae Giard, 1872 (basis of record)
Didemnum Savigny, 1816 (basis of record)
Diplosoma Macdonald, 1859 (basis of record)
Distaplia Della Valle, 1881 (basis of record)
Eudistoma Caullery, 1909 (basis of record)
Eugyra Alder & Hancock, 1870 (additional source)
Eugyrioides Seeliger, 1907 accepted as Eugyra Alder & Hancock, 1870 (basis of record)
Hexacrobylidae Seeliger, 1906 accepted as Molgulidae Lacaze-Duthiers, 1877 (additional source)
Lissoclinum Verrill, 1871 (basis of record)
Microcosmus Heller, 1877 (basis of record)
Molgula Forbes, 1848 (basis of record)
Molgulidae Lacaze-Duthiers, 1877 (additional source)
Molguloides Huntsman, 1922 (basis of record)
Octacnemidae (additional source)
Oligotrema lyra Monniot C. & Monniot F., 1973 (basis of record)
Pareugyrioides Hartmeyer, 1914 (basis of record)
Phlebobranchia (basis of record)
Polycarpa Heller, 1877 (basis of record)
Polycitor [Renier], [1804] (basis of record)
Polycitoridae Michaelsen, 1904 (additional source)
Polyclinidae Milne Edwards, 1841 (additional source)
Polyclinum Savigny, 1816 (basis of record)
Polysyncraton Nott, 1892 (basis of record)
Protoholozoa Kott, 1969 (basis of record)
Pyura Molina, 1782 (basis of record)
Pyuridae Hartmeyer, 1908 (additional source)
Ritterella Harant, 1931 (basis of record)
Sidnyum Savigny, 1816 accepted as Aplidium Savigny, 1816 (basis of record)
Stolidobranchia (basis of record)
Styela Fleming, 1822 (basis of record)
Styelidae Herdman, 1881 (additional source)
Sycozoa Lesson, 1832 (basis of record)
Synoicum Phipps, 1774 (basis of record)
Tylobranchion Herdman, 1886 (basis of record)