Mermaids confirmed for Island Living!!!

Im so exited, but because of the "normal" Plumbob I'm a little bitt afraid, that they are not real Mermaids. More like the plant sims or the Skeletons. Because if you look at the Aliens or the Vampires, they have different Plumbobs than Sims. This would be very very disappointed for me, if the Mermaids could not be real occults! :s

I HOPE NOT! I really want my Sim to become a mermaid forever!