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Cryptid whales are cetaceans claimed to exist by cryptozoologists on the basis of informal sightings, but not accepted by taxonomists as they lack formal descriptions of type specimens. Over the past few hundred years, sailors and whalers have reported seeing whales they cannot identify. The most well-known are Giglioli's Whale, the rhinoceros dolphin, Trunko, the high-finned sperm whale, and the Alula whale.
Records of two-finned cetaceans have been described in unverified written accounts by naturalists over the past few hundred years. [1]
Giglioli's Whale, or Amphiptera pacifica, is a purported species of whale observed by Enrico Hillyer Giglioli. It is described to have two dorsal fins, a feature which no known whales have. On September 4, 1867, on board a ship called the Magenta about 1,930 kilometres (1,200 mi) off the coast of Chile, the zoologist spotted a species of whale which he could not recognize. It was very close to the ship (too close to shoot with a cannon) and was observed for a quarter of an hour, allowing Giglioli to make very detailed observations. The whale looked overall similar to a rorqual, 18 metres (59 ft) long with an elongated body, but the most notable difference was the presence of two large dorsal fins about 2 metres (6.6 ft) apart. Other unusual features include the presence of two long sickle-shaped flippers and a lack of throat pleats. Another report of a two finned whale of roughly the same size was recorded from the ship Lily off the coast of Scotland the following year. In 1983 between Corsica and the French mainland, French zoologist Jacques Maigret sighted a similar looking creature. Although it has not been proven to exist, it was given a "classification" by Giglioli. The whale may have been a genetic mutation. Given the species' alleged size and attributes, it is extremely doubtful such a species would not have been taken (and reported) by modern commercial whalers, bringing into doubt its very existence.
The rhinoceros dolphin (Delphinus rhinoceros or Cetodipterus rhinoceros) is a purported species of dolphin – or dolphin-like whale – said to have an additional dorsal fin on or near the head, reminiscent of a rhinoceros horn. Jean René Constant Quoy and Joseph Gaimard allegedly discovered this dolphin off the coast of the Sandwich Islands and New South Wales. It supposedly possesses two dorsal fins, much like Giglioli's Whale. One is near the head, where the neck would be on terrestrial animals, and the other is farther back than the dorsal fin of any other dolphin. These have a somewhat large size, and are black with large white blotches. Michel Raynal suggested it may have been misobserved somersault behavior (with the first "fin" being a flipper and the second being a fluke), but dismissed it as unlikely. Georges Cuvier proposed it may have been an optical illusion and Richard Ellis suggested it may have been a dolphin with a remora stuck on its head. Markus Bühler pointed out that one dolphin's deformed jaw curiously resembles the oddly placed fin or "horn" of the rhinoceros dolphin. Supernumerary dorsal fins are apparently a genuine mutation; however, none have turned up a considerable distance from where the dorsal fin should be positioned, let alone on the head. Raynal and Sylvestre (1991) argued that since Quoy and Gaimard observed multiple individuals exhibiting the morphology, a distinct species, Cetodipterus rhinoceros, would be more probable than a pod of disfigured individuals. Another argued hypothesis is that that pod was part of an inbred population, which led to the mutation. Another possibility is that Quoy and Gaimard observed specimens which were neither deformed nor members of an unknown species or population, but rather misidentified a pair of beaked whales that, by perspective, appeared to be one single creature.[ citation needed ]
The high-finned sperm whale, or the high-finned cachalot, is an alleged variant or relative of the known sperm whale, Physeter macrocephalus, with an unusually tall dorsal fin from the North Atlantic. The physician Sir Robert Sibbald, in 1687, described an alleged stranded female individual on Orkney, saying its dorsal fins was similar to a "mizzen mast". Carl Linnaeus listed Physeter microps and Physeter tursio as High-finned sperm whales in the 10th edition of Systema Naturae in 1758. There was much confusion between the reports of sperm whales, killer whales, pilot whales and beluga whales, and Georges Cuvier sorted the confusion out and determined that there were no high-finned sperm whales and that there was only one species of sperm whale in one genus. [2] [3] Sibbald was at least aware of the existence of killer whales and beluga whales, and he noted that he did not directly witness the whales above so the report of the shape of their heads and some other features is unclear. [4] Furthermore, it has also been pointed out that the high-finned Physeter spiecies listed by Linnaeus may have seen killer whales, and that his use of the scientific name Delphinus orca may have been for bottlenose dolphins. [5] Another alleged sighting was off the Annapolis Basin, Nova Scotia, Canada on September 27, 1946, where the creature was apparently trapped there for two days. Its length was estimated to be between 3 and 30 metres (10 and 100 ft).[ citation needed ]
The Alula whale, or the Alula killer, or Orcinus mörzer-bruynsus, was discussed and illustrated for the first time, but not formally named, by W. F. J. Mörzer Bruyns in Field Guide of Whales and Dolphins, purportedly being seen by the author several times. It resembles a sepia brown killer whale with a well-rounded forehead and white, star-like scars on the body. He wrote they are present in the deep coastal waters in eastern Gulf of Aden to Socotra, and they were seen in April, May, June, and September. He estimated it to be roughly 6–7 metres (20–23 ft) long, weigh around 1.8 metric tons (2.0 short tons), and have a dorsal fin that is around 2 metres (6.6 ft) high. Bruyns reported that they maintained a cruising speed of 4 knots, and traveled in groups of 4 to 8, but usually 6. [6]
The "Moore's Beach monster", an initially unidentified carcass found in 1925 on Moore's Beach on Monterey Bay was identified by the California Academy of Sciences as a Baird's beaked whale. [7] [8]
Regarding similar cases relating to beaked whales, an unknown type of large beaked whale of similar size to fully grown Berardius bairdii have been reported to live in the Sea of Okhotsk. These whales are claimed to have heads somewhat resembling Longman's beaked whales, and there have been claims that records of strandings of these whales exist along the areas within and adjacent to Tatar Strait in the 2010s. [9] In addition, possible new species of beaked whales have been described to be present in the coastal and pelagic waters of Abashiri and Shiretoko Peninsula northeastern Hokkaido. [10] [11] [12]
The sperm whale or cachalot is the largest of the toothed whales and the largest toothed predator. It is the only living member of the genus Physeter and one of three extant species in the sperm whale family, along with the pygmy sperm whale and dwarf sperm whale of the genus Kogia.
The four-toothed whales or giant beaked whales are beaked whales in the genus Berardius. They include Arnoux's beaked whale in cold Southern Hemispheric waters, and Baird's beaked whale in the cold temperate waters of the North Pacific. A third species, Sato's beaked whale, was distinguished from B. bairdii in the 2010s.
Arnoux's beaked whale, also called the southern four-toothed whale, southern beaked whale, New Zealand beaked whale, southern giant bottlenose whale and southern porpoise whale is one of the species of Berardius. Arnoux's and Baird's beaked whales are so similar that researchers debated whether or not they are simply two populations of the same species, until genetic evidence and their wide geographical separation led them to be classified as separate. Little is known about their behavior due to infrequent encounters with live individuals.
The hourglass dolphin is a small dolphin in the family Delphinidae that inhabits offshore Antarctic and sub-Antarctic waters. It is commonly seen from ships crossing the Drake Passage but has a circumpolar distribution.
The dwarf sperm whale is a sperm whale that inhabits temperate and tropical oceans worldwide, in particular continental shelves and slopes. It was first described by biologist Richard Owen in 1866, based on illustrations by naturalist Sir Walter Elliot. The species was considered to be synonymous with the pygmy sperm whale from 1878 until 1998. The dwarf sperm whale is a small whale, 2 to 2.7 m and 136 to 272 kg, that has a grey coloration, square head, small jaw, and robust body. Its appearance is very similar to the pygmy sperm whale, distinguished mainly by the position of the dorsal fin on the body–nearer the middle in the dwarf sperm whale and nearer the tail in the other.
Enrico Hillyer Giglioli was an Italian zoologist and anthropologist.
The Agreement on the Conservation of Cetaceans of the Black Sea, Mediterranean Sea and contiguous Atlantic Area, or ACCOBAMS, is a regional international treaty that binds its States Parties on the conservation of Cetacea in their territories. The Agreement aims is to reduce threats to Cetaceans in the Mediterranean and Black Seas, as well as in the contiguous Atlantic area west of the Straits of Gibraltar.
Mediterranean cetaceans constitute a unique assemblage of species found in the virtually closed basin of the Mediterranean Sea. This assemblage differs from those found in the North Atlantic or the Red Sea. In the Mediterranean, cetaceans are represented by around twenty species, but only eight of these are considered common: the Short-beaked dolphin, Common dolphin, Bottlenose dolphin, Risso's dolphin, Long-finned pilot whale, Cuvier's beaked whale, Sperm whale and Fin whale. Their distribution varies greatly from region to region, and their abundance and diversity seem to be greatest in the Corso-Liguro-Provençal basin, where cetaceans have been protected by the Pelagos Sanctuary since 2002.