Aplidium elegans and A. turbinatum synonymous with Sidnyum elegans and Sidnyum turbinatum.
Ascidiella
Ascidiella aspersa (Müller, 1776) - Dirty sea squirt
Ascidiella scabra (Müller, 1776) - A Sea squirt
Botryllus
Botrylloides leachii (Savigny, 1816)
- A Colonial ascidian
Botryllus schlosseri (Pallas, 1766) - Star ascidian
Botryllus schlosseri (Pallas, 1766)
- Star ascidian (syn. B. violaceus)
Botryllus schlosseri (Pallas, 1766)
- Star ascidian images from Newlyn, Cornwall.
Ciona
Ciona intestinalis (Linnaeus, 1767)
- Sea Vase or Yellow sea squirt
Clavelina
Clavelina lepadiformis (Müller, 1776)
- Transparent or Light bulb sea squirt
Corella
Corella eumyota Traustedt, 1882
- Orange-tipped sea squirt
Dendrodoa
Dendrodoa grossularia (Van Beneden, 1846)
- Baked-bean sea squirt or Currant squirter
Didemnum
Didemnum maculosum (Milne-Edwards, 1841)
- A Sea squirt
Didemnum sp. probably D. maculosum - A Sea squirt
Distomus
Distomus variolosus Gaertner, 1774
- Lesser gooseberry sea squirt
Lissoclinum
Lissoclinum perforatum (Giard, 1872)
- White perforated sea squirt
Morchellium
Morchellium argus (Milne-Edwards, 1841) - A Sea squirt
Pyura
Pyura tessellata (Forbes, 1848) - A Sea squirt
Stolonica
Stolonica socialis Hartmeyer, 1903
- Orange sea grapes or Squirt
Styela
Styela clava Herdman, 1881
- Leathery or Folded sea squirt
Synoicum
Synoicum incrustatum (Sars, 1851) - A Sea squirt
Trididemnum
Trididemnum cereum (Giard, 1872)? - A Sea squirt
European Names - Ascidians, Tunicates, Seescheiden, Zakpijpen, Ascidies, Ascidias, Ascidie.
