Dungavenhooter - [Fearsome Critter] - Latin name: Crocodilus hauriens.
• About this critter: a croc-like reptile, minus the signature jaws, it hides in the bushes then pulverizes rum-sodden loggers into a gas using its weighted tail, then, it snorts the remains through its huge nostrils leaving nothing behind... Supposedly Native to the marshlands between Main & Michigan.
• History: Not too much to be said other than that it made its first illustrated appearance catalogued among other critters in Henry H Tryons Fearsome Critters [1939.]
Given its odd sounding name which bears some similarity in difficult pronunciation to the 'Rumtifusel' – I wouldn't be surprised if the legend or name of the creature also migrated from Scandinavian lumber camps as well. (Just speculation though.) Perhaps it was used to explain lumberjacks gone missing in the swamp.
The book notes that it should not be confused with the New Brunswick ghost legend “Dungarvon Whooper.” – (Which is an interesting enough subject that I might want to look more deeply into another time.) – This ghost is known for making "whooping" sounds. Perhaps this 'hooter' mimics an owls cry.