Great Lynx
Among the Ojibwa people of North America, this is another name for the water monster Mishipzhiw. It is described as being a huge cat-like creature with a saw-toothed backbone and very long and flexible tail with which it can catch it, victims, dragging them to a watery grave.
John and Caitlin Matthews, The Element Encyclopaedia of Magical Creatures, 2013, Great Lynx, p 207