Turle knot

A turle knot is a knot used while fishing for tying a hook or fly to a leader. It is named after Major William Greer Turle, a 19th-century English angler who popularized the knot but did not claim to have invented it. Turle was a contemporary of Frederic M. Halford and fished the chalkstreams of Hampshire with Halford in the late 19th century and was an early pioneer in the use of eyed hooks for fly fishing. It has sometimes, wrongly, been referred to as the turtle knot.