by Larvaceans or appendicularians, class Appendicularia, are solitary, free-swimming tunicates found throughout the world's oceans.
Like most tunicates, larvaceans are filter feeders.
Unlike most other tunicates, they keep their tadpole-like shape as adults, with the notochord running through the tail.
They can be found in the pelagic zone, specifically in the photic zone, or sometimes deeper.
They are transparent planktonic animals, usually ranging from 2 mm (0.079 in) to 8 mm (0.31 in) in body length including the tail, although giant larvaceans can reach up to 10 cm (3.9 in) in length.
Source
Like most tunicates, larvaceans are filter feeders.
Unlike most other tunicates, they keep their tadpole-like shape as adults, with the notochord running through the tail.
They can be found in the pelagic zone, specifically in the photic zone, or sometimes deeper.
They are transparent planktonic animals, usually ranging from 2 mm (0.079 in) to 8 mm (0.31 in) in body length including the tail, although giant larvaceans can reach up to 10 cm (3.9 in) in length.
Source
