Mongitore's Monstrous Fish - despite its name, this "fish" is actually a whale more in likely.
Oxypterus Mongitori is this beast's scientific name. It was described as 45 feet long and 23 feet in circumference. It had two dorsal fins, a blowhole, powerful teeth, and a 10 foot tail. It was reported in 1741 when this animal was stranded on a beach in Licata, Sicily, Italy.
Not much is known about this strange creature but scientists have raised speculations about what it could be. Some have suggested a misplaced Magenta Whale, another cetacean cryptid with two dorsal fins. Others have suggested a juvenile Basilosaurus , a prehistoric toothed whale that grew up to 80 feet long. Some have even said it could be a Basking Shark , though these are sharks with miniature teeth and is a filter feeder. Basking Sharks also do not have double dorsal fins, though they are found in the Mediterranean Sea (where Sicily is) and they do almost get to these lengths, it is unlikely that a basking shark is the culprit. So what was this creature? It would probably be a Basilosaurus. Basilosaurs were probably migratory cetaceans, their fossils have been found near Egypt which is fairly close to the Mediterranean Sea. If a living population of Basilosaurs is true, this theory could be the answer. These Basilosaurs could have migrated to the Mediterranean Sea and a juvenile could have strayed off to close to the shore. And though this is only a theory this could solve the mystery of this denizen of the deep.
Giglioli's Whale - another cetacean with two dorsal fins.
Rhinoceros Dolphin - another cetacean with two dorsal fins.