Thaliacea
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Thaliacea is a class of marine chordates within the subphylum Tunicata, comprising the salps, pyrosomes and doliolids. Unlike their benthic relatives the ascidians, from which they are believed to hav
Pyrosoma atlanticum
Sea Squirt
Microcosmus sabatieri 2 Roule, 1885
Tunicate off Atauro island
Salp
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A salp or salpa is a barrel-shaped, planktonic tunicate in the family Salpidae. The salp moves by contracting its gelatinous body in order to pump water through it; it is one of the most efficient exa
Thaliacea
…Thaliacea is a class of marine chordates within the subphylum Tunicata, comprising the salps, pyrosomes and doliolids. Unlike their benthic relatives the ascidians, from which they are believed to have emerged, thaliaceans are free-floating…
Salp
Circular ring cluster of pelagic salps off Aorangaia Island, New Zealand
Salp chain off Zanzibar
Another salp chain off Oregon