The Las Perlas Islands lie off the coast of Panama in the Pacific Ocean. Here in 1883 the whalers aboard the ship Hope On spotted a strange sea creature. It boasted a horse-like head and a pair of horns, which were said to look like those of a unicorn. It had four appendages which were either legs or double-jointed fins. Its color was brownish with black spots. Its tail seemed to divide into two parts.
This was not the only reported sighting. It is said that sailors of the Pacific Mail Company had also seen it a number of times.