Apart from the great sea serpents that have been sighted by sailors for centuries, there are also monsters in a large number of the world's lakes. Monsters are to be found in Lough Marsh on Iceland, Loch Lomond in Scotland, Khaiyr in the U.S.S.R., Lake Okanagan in British Columbia (called Ogopogo), in Nahuel Huapi Lake in Argentina (called Nahuelito), in Lake Manitoba (called Manipogo) and in Lake Champlain (called Champ and sighted 224 times). The best known is of course the Loch Ness Monster (Nessie) which is recorded in a number of writings.   Several parallels can be drawn between Storsjöodjuret and Nessie. The phenomena are described in such a similar manner that many believe there is an unknown subterranean tunnel connecting the two lakes. With regard to Nessie's international reputation one would think that she had an older heritage than Storsjöodjuret. This, however, is not the case. With the exception of a tale from the missionary Saint Colmbus in 565, telling of an aquatic monster in the Ness river, there are no other sightings of Nessie before 1933. A great deal of energy has gone into trying to solve the puzzle of the mysterious creature in the Loch. The use of echo-sounding equipment, under water photography with stroboscopic cameras, and continual observation of the surface of the Loch have demonstrated that there is some sort of large creature in the Loch. For a long time Norway seems to have been the home for lake and sea monsters. About 50 such creatures have been sighted in lakes and near coastal towns. In 1522 a lake serpent was reported in Mjösa. The serpent was multi-coloured, long, it had a horse-like head with large round eyes and a long black mane. The lake serpent became stranded on a rock and was killed. Afterwards it lay there decomposing and fouling the air so that in the end they were forced to burn the carcass. Since then here has never been an equally reliable piece of evidence in support of the existence of lake monsters. The extensive population of monsters in Norway is interesting from the Swedish point of view. The Swedish monsters are restricted to areas that were fomerly Norwegian territories: Jämtland and Bohus Counties. Apart from Storsjöodjuret, occasional sightings of monsters have been made in lake Kall in Jämtland, and the lake of Bullaren in northern Bohus County. Storsjöodjuret would appear to be an offshoot from the Norwegian central family.