OK cool.Caecilians are amphibians, also called rubber eels. No gills, no fins, very poor eyesight.
Not a caecilian (these don't occur in North America in any case). Not an American eel. Not a lamprey. Definitely exotic, or else a marine species somehow trapped in the lake (very unlikely).Swamp eel?
*EDIT* Please contact your DNR! Introduced exotics can be bad news, and the sooner they know about this the sooner something can be done! We don't need another snakehead or sea lamprey destroying our native fishes.