SALP
[noun]
(plural salps, salpa, salpae or salpa) a barrel-shaped, planktonic tunicate. It moves by contracting, thus pumping water through its gelatinous body. The salp strains the pumped water through its internal feeding filters, feeding on phytoplankton.
Etymology: Neo-Latin, special use of Latin salpa < Greek sálpē - kind of fish.