Abyssascidia Herdman, 1880 (additional source)
Agnesiopsis Monniot C., 1969 accepted as Corynascidia Herdman, 1882 (source of synonymy)
Agnezia Monniot C. & Monniot F., 1991 (basis of record)
Agneziidae Monniot C. & Monniot F., 1991 (basis of record)
Amaroucium Milne Edwards, 1841 accepted as Aplidium Savigny, 1816 (additional source)
Anadistoma Kott, 1992 (basis of record)
Anomopera Hartmeyer, 1923 (additional source)
Aplidiopsis Lahille, 1890 (additional source)
Aplidiopsis georgianum (Sluiter, 1932) accepted as Synoicum georgianum Sluiter, 1932 (basis of record)
Aplidium Savigny, 1816 (additional source)
Aplidium laevigatum (Herdman, 1886) accepted as Aplidium fuegiense (Cunningham, 1871) (basis of record)
Aplidium protectans (Herdman, 1899) (basis of record)
Araneum Monniot C. & Monniot F., 1973 (basis of record)
Archidistoma Garstang, 1891 (additional source)
Archidistoma diaphanes (Ritter & Forsyth, 1917) accepted as Eudistoma diaphanes Ritter & Forsyth, 1917 (basis of record)
Archidistoma psammion (Ritter & Forsyth, 1917) accepted as Eudistoma psammion Ritter & Forsyth, 1917 (basis of record)
Asajirus Kott, 1989 (basis of record)
Ascidia corelloides (Van Name, 1924) accepted as Ascidia archaia Sluiter, 1890 (basis of record)
Ascidia spinosa Sluiter, 1904 (basis of record)
Ascidiella Roule, 1884 (additional source)
Ascidiidae Herdman, 1882 (basis of record)
Asterocarpa Brewin, 1946 (basis of record)
Atriolum Kott, 1983 (additional source)
Atriolum marsupialis Monniot F., 1989 (basis of record)
Bathyoncus Herdman, 1882 (additional source)
Bathypera Michaelsen, 1904 (additional source)
Bathystyeloides Seeliger, 1907 (additional source)
Benthascidia Ritter, 1907 (basis of record)
Berillia Brewin, 1952 (basis of record)
Botryllocarpa Hartmeyer, 1909 (basis of record)
Botrylloides niger Herdman, 1886 (basis of record)
Botryllus anceps (Herdman, 1891) accepted as Botrylloides anceps (Herdman, 1891) (basis of record)
Botryllus leachii (Savigny, 1816) accepted as Botrylloides leachii (Savigny, 1816) (basis of record)
Botryllus niger (Herdman, 1886) accepted as Botrylloides nigrum Herdman, 1886 accepted as Botrylloides niger Herdman, 1886 (basis of record)
Botryllus purpureus (Oka, 1932) accepted as Botrylloides anceps (Herdman, 1891) (basis of record)
Brevicollus Kott, 1990 (basis of record)
Caenagnesia Ärnbäck-Christie-Linde, 1938 (additional source)
Caesira Fleming, 1822 accepted as Molgula Forbes, 1848 (basis of record)
Chorizocarpa Michaelsen, 1904 (basis of record)
Chorizocormus Herdman, 1886 accepted as Polyzoa Lesson, 1831 (basis of record)
Ciona antarctica Hartmeyer, 1911 (basis of record)
Cionidae Lahille, 1887 (additional source)
Citorclinum Monniot & Millar, 1988 (basis of record)
Clavelina Savigny, 1816 (additional source)
Clavelina detorta (Sluiter, 1904) (basis of record)
Clavelinidae Forbes & Hanley, 1848 (additional source)
Clitella Kott, 2001 (basis of record)
Cnemidocarpa humilis (Heller, 1878) accepted as Asterocarpa humilis (Heller, 1878) (basis of record)
Cnemidocarpa joannae (Herdman, 1898) (basis of record)
Coelocormus Herdman, 1886 (basis of record)
Condominium Kott, 1992 (basis of record)
Corelloides Oka, 1926 (basis of record)
Cryptia Monniot C. & Monniot F., 1985 (basis of record)
Ctenyura Van Name, 1918 (basis of record)
Cystingia MacLeay, 1825 accepted as Molgula Forbes, 1848 (basis of record)
Dextrogaster Monniot F., 1962 (additional source)
Diazona Savigny, 1816 (additional source)
Diazonidae Seeliger, 1906 (additional source)
Didemnidae Giard, 1872 (additional source)
Didemnium Savgny, 1816 accepted as Didemnum Savigny, 1816 (basis of record)
Didemnum amethysteum (Van Name, 1902) (basis of record)
Didemnum cuculliferum (Sluiter, 1909) (basis of record)
Didemnum dorotubu Tokioka, 1967 accepted as Didemnum psammatodes (Sluiter, 1895) (basis of record)
Didemnum psamathodes (Sluiter, 1895) accepted as Didemnum psammatodes (Sluiter, 1895) (basis of record)
Didemnum psammatodes (Sluiter, 1895) (basis of record)
Dimeatidae Sanamyan, 2001 (basis of record)
Diplosoma gelatinosa (Milne Edwards, 1841) (basis of record)
Distoma Savigny, 1816 accepted as Eudistoma Caullery, 1909 (basis of record)
Dumus Brewin, 1952 (basis of record)
Euclavella Kott, 1990 (basis of record)
Eucoelium Savigny, 1816 (basis of record)
Eudistoma rigidum Tokioka, 1955 (basis of record)
Eugyra guttula (Michaelsen, 1900) accepted as Eugyra kerguelenensis Herdman, 1881 (basis of record)
Eugyra pellucida (Macdonald, 1859) (basis of record)
Eugyra pilularis (Verrill, 1871) accepted as Bostrichobranchus pilularis (Verrill, 1871) (basis of record)
Eugyrioides guttula (Michaelsen, 1900) accepted as Eugyra guttula (Michaelsen, 1900) accepted as Eugyra kerguelenensis Herdman, 1881 (basis of record)
Eugyrioides myodes (Millar, 1962) accepted as Eugyra myodes Millar, 1962 (basis of record)
Euherdmania Ritter, 1904 (basis of record)
Euherdmaniidae Ritter, 1904 (basis of record)
Eusynstyela tincta (Van Name, 1902) (basis of record)
Exostoma Kott, 1990 (basis of record)
Fungulus Herdman, 1882 (basis of record)
Gynandrocarpa placenta (Herdman, 1886) (basis of record)
Hemistyela Millar, 1955 (basis of record)
Heterostigma singulare (Van Name, 1912) accepted as Cratostigma singularis (Van Name, 1912) (basis of record)
Hexacrobylidae Seeliger, 1906 accepted as Molgulidae Lacaze-Duthiers, 1877 (basis of record)
Holozoidae Berrill, 1950 (basis of record)
Hypobythiidae Sluiter, 1895 (basis of record)
Hypobythius Moseley, 1877 (basis of record)
Hypodistoma Tokioka, 1967 (basis of record)
Hypodistoma vastum (Millar, 1962) (basis of record)
Hypsistozoa Brewin, 1953 (basis of record)
Macrenteron Redikorzev, 1927 accepted as Aplidium Savigny, 1816 (basis of record)
Megalodicopia Oka, 1918 (basis of record)
Microgastra Kott, 1985 (basis of record)
Minipera Monniot C. & Monniot F., 1974 (basis of record)
Minostyela Kott, 1969 accepted as Styela Fleming, 1822 (basis of record)
Molgula bacca (Herdman, 1910) (basis of record)
Molgula confluxa (Sluiter, 1912) accepted as Molgula enodis (Sluiter, 1912) (basis of record)
Molgula gigantea (Cunningham, 1871) accepted as Paramolgula gigantea (Cunningham, 1871) (basis of record)