Jozin is simmilar, but not the same ... (also its a name of specific creature, not a species ... but i presume you know that
)
I would say they are as close as Mumies and Zombies.
Actualy Jozin is basicaly Drowner when i think about it ...
Drowner is also simmilar, and also not exactly it.
Drowners are eating people, this creature im talking about are not eating humans, they just drown them to capture their souls ... now when i think about it, i dont even know why they hoarding them.
But in some old Czech movies, it was speculated that amount of captured souls equals their welth.
Vodník, or Hastrman (both in czech) is this: