Which species is mentioned as being the most pelagic, living its entire life at the surface?

Answer

The Yellow-bellied Sea Snake (*Pelamis platurus*)

The Yellow-bellied Sea Snake is described as the most pelagic species, spending its entire life at the surface and never needing to touch land or the seafloor.

Which species is mentioned as being the most pelagic, living its entire life at the surface?
seaanimalclassificationreptilesnake