Amaroucium stellatum Verrill, 1871 accepted as Aplidium stellatum (Verrill, 1871) (additional source)
Amphiporus angulatus (Müller, 1774) (additional source)
Amphiporus caecus Verrill, 1892 (additional source)
Ascidia callosa Stimpson, 1852 (additional source)
Boltenia echinata (Linnaeus, 1767) (additional source)
Boltenia ovifera (Linnaeus, 1767) (additional source)
Bostrichobranchus pilularis (Verrill, 1871) (additional source)
Botryllus schlosseri (Pallas, 1766) (additional source)
Cerebratulus fuscus (McIntosh, 1874) (additional source)
Cerebratulus lacteus (Leidy, 1851) (additional source)
Cnemidocarpa mollis (Stimpson, 1852) (additional source)
Dendrodoa carnea (Agassiz, 1850) (additional source)
Didemnum albidum (Verrill, 1871) (additional source)
Eukrohnia hamata (Möbius, 1875) (additional source)
Fragilonemertes rosea (Leidy, 1851) (additional source)
Halocynthia pyriformis (Rathke, 1806) (additional source)
Lineus arenicola (Verrill, 1873) (additional source)
Lineus bicolor Verrill, 1892 accepted as Tenuilineus bicolor (Verrill, 1892) accepted as Siphonenteron bicolour (Verrill, 1892) (additional source)
Micrura affinis (Girard in Stimpson, 1854) (additional source)
Micrura dorsalis Verrill, 1892 (additional source)
Molgula arenata Stimpson, 1852 (additional source)
Molgula manhattensis (De Kay, 1843) (additional source)
Molgula retortiformis Verrill, 1871 (additional source)
Ramphogordius sanguineus (Rathke, 1799) accepted as Lineus sanguineus (Rathke, 1799) (additional source)
Salpa fusiformis Cuvier, 1804 (additional source)
Seison annulatus Claus, 1876 accepted as Paraseison annulatus (Claus, 1876) (additional source)
Seison nebaliae Grube, 1861 (additional source)
Serratosagitta serratodentata (Krohn, 1853) (additional source)
Serratosagitta tasmanica (Thompson, 1947) (additional source)
Styela partita (Stimpson, 1852) accepted as Styela canopus (Savigny, 1816) (additional source)
Tetrastemma candidum (Müller, 1774) (additional source)
Tetrastemma elegans (Girard, 1852) (additional source)
Tetrastemma vermiculus (Quatrefages, 1846) (additional source)