The "Klabautermann" (also spelt "Klaboterman" and "Klabotermann") is a creature from the beliefs of fishermen and sailors of Germany's north coast, the Netherlands, and the Baltic Sea, and may represent a third type of kobold or possibly a different spirit that has merged with kobold traditions. Belief in the Klabautermann dates to at least the 1770s. According to these traditions, Klabautermanns live on ships and are generally beneficial to the crew. For example, a Klabautermann will pump water from the hold, arrange cargo, and hammer at holes until they can be repaired. The creatures are thought to be especially useful in times of danger, preventing the ship from sinking. The Klabautermann is associated with the wood of the ship on which it lives. It enters the ship via the wood used to build it, and it may appear as a ship's carpenter.