HOGA
Mexican Folklore
This is the name of a monster in the traditions and folklore of Mexico. In South America it is known as ANDURA. The HOGA is described as being like a gigantic fish creature, with a head and ears like those of a pig, and extremely long barbs or thick whiskers round its mouth in which were great fangs. This creature amazingly had the ability to change color and could be red, green or yellow. The HOGA was said to inhabit the lake of the city of THEMISTITAN, where it grazed on the leaves of the HOGA tree at the shoreline. Humans were afraid of it since it was reported to take vast fish and even land animals if they strayed too close to the water's edge.
Source: Giants, Monsters, and Dragons: An Encyclopedia of Folklore, Legend, and Myth