Aplidium mernooensis (Brewin, 1956) (basis of record)
Aplidium pseudoradiatum Millar, 1982 (original description)
Aplidium quadriversum Millar, 1982 (original description)
Ascidia lagena Michaelsen, 1922 (additional source)
Ascidia stewartensis Millar, 1982 (original description)
Berillia boltenioides Brewin, 1952 (additional source)
Clavelina michaelseni Millar, 1982 (original description)
Didemnum lambitum (Sluiter, 1900) (basis of record)
Leptoclinides auranticus Brewin, 1956 (additional source)
Leptoclinides diemenensis Michaelsen, 1924 (additional source)
Leptoclinides duminus Millar, 1982 (original description)
Leptoclinides marmoreus Brewin, 1956 (additional source)
Leptoclinides novaezelandiae Brewin, 1958 (additional source)
Leptoclinides sluiteri Brewin, 1950 (additional source)
Leptoclinides sparsus Michaelsen, 1924 (additional source)
Lissoclinum notti Brewin, 1958 (additional source)
Molgula sluiteri (Michaelsen, 1922) (basis of record)
Oligocarpa megalorchis Hartmeyer, 1911 (additional source)
Polyclinum sluiteri Brewin, 1956 (additional source)
Polysyncraton chondrilla (Michaelsen, 1924) (basis of record)
Polysyncraton paradoxum Nott, 1892 (additional source)
Pseudodistoma novaezelandiae (Brewin, 1950) (basis of record)
Pseudodistoma opacum (Brewin, 1950) (basis of record)
Pyura carnea Brewin, 1948 (additional source)
Pyura pachydermatina (Herdman, 1881) (basis of record)
Pyura subuculata (Sluiter, 1900) (basis of record)
Pyura trita (Sluiter, 1900) (basis of record)
Pyura trita typica Michaelsen, 1922 (additional source)
Pyura typica Michaelsen, 1922 accepted as Pyura trita typica Michaelsen, 1922 (additional source)
Ritterella arenosa (Brewin, 1950) (basis of record)
Ritterella sigillinoides (Brewin, 1958) (basis of record)
Synoicum apectetum Millar, 1982 (original description)
Synoicum arenaceum (Michaelsen, 1924) (basis of record)
Synoicum haurakiensis Brewin, 1951 (additional source)
Synoicum herdmani Brewin, 1956 (additional source)
Synoicum hypurgon (Michaelsen, 1924) (basis of record)
Synoicum occidentalis Millar, 1982 (original description)
Synoicum otagoensis Millar, 1982 (original description)
Synoicum stewartense (Michaelsen, 1924) (basis of record)
Theodorella arenosa Michaelsen, 1922 (basis of record)