Ambize
Region of origin: The Congo
An unidentified creature sighted in the waters near the Congo by European explorers in the 16th century, the ambize or angulo was described as a large fish with an ox’s head, human-like hands and a flat paddle-shaped tail. Believed to live in the sea and some rivers and lakes further inland, the ambize was said to never leave the water but would surface to graze on the grass along the shoreline and with some effort could be caught and cooked with meat that tasted comparable to pork. It is largely thought today these stories were early manatee sightings, but according to my cursory research manatees should taste more like beef so that leaves a fairly large hole in that theory.