Screemu

This monster's name is confirmed from a puzzle made on a post on My Singing Monsters Facebook page. It is most likely the name of new Wublin as there is a firefly and a background resembling Wublin Island's on the post.

Description
The Screemu is the new upcoming wublin on wublin island.

☀ it is white, green and purple, and has 3 webbed feet, has tusks and a green mouth

Name origin
The name may be a portmanteau of "scream" and "emu", a flightless Australian bird.