The dobhar-chu (dobhar-chú, dobarcu, dobhar-choin, doyarchu, water hound, master otter) is an old Irish cryptid that resembled either, a sort of otter, a dog/fish hybrid or a serpentine creature. Though in all transformations it is commonly described with fur with protective properties such as an otter. In terms of colour it can range from white to brown or black.
The dobhar-chu is said to reside in lakes but with the capability of walking on land quite fast (In one tale it was said to keep up with horses). One legend attributes to its birth the 'seventh cub of the common otter' (Seán ó h-Eochaidh, n.d cited in Dave Walsh, 1998). It was known not to hesitate to attack humans for food.
There are at least two well known grave sites with the tale of the dobhar-chu associated with them. The first is the Kinlough stone said to mark the burial site of a woman killed by the dobhar-chu, even providing an image of the creature. The second is the Glenade Stone where a woman had been killed by the beast in similar circumstances in 1722 by lake Glenade. There is also a drawing of the beast there.