Thetys vagina

Description

Thetys vagina is the largest known solitary species of salp and the only valid species of the genus Thetys. Individuals can reach up to 30 cm (12 in) long. It occurs in warm waters of all oceans, where it is widespread but at low density (although they may occasionally be found at very high density), and is occasionally found in colder waters in the northern Atlantic. T. vagina feeds on marine plankton, including single-celled organisms such as dinoflagellates, silicoflagellates, diatoms, and tintinnids, as well as copepods.