Skates are cartilaginous fish belonging to the family Rajidae in the superorder Batoidea of rays. More than 150 species have been described, in 17 genera. Softnose skates and pygmy skates were previously treated as subfamilies of Rajidae, but are now considered as distinct families. Alternatively, the name "skate" is used to refer to the entire order of Rajiformes.
The deepsea pigfish is a species of marine ray-finned fish belonging to the family Congiopodidae, the horsefishes or pigfishes. It is found around New Zealand, and has been recorded off southern Australia.
The humpback smooth-hound is a species of houndshark and a part of the family Triakidae. The most noticeable difference between Mustelus whitneyi and its relatives, is the slight curvature, causing a "humpback" appearance located in front of its primary dorsal fin. It is found on the continental shelves of the tropical southeast Pacific, from Peru to southern Chile, between latitudes 3° S and 54° S. These sharks are demersal feeders but range from depths between 15 and 210 metres. Humpback smooth-hound sharks are small sharks, reaching a maximum size of 118 cm (46 in) in total length. Mustelus whitneyi typically feed on teleosts and invertebrates in the benthic and pelagic ecosystems, most important prey being the peruvian anchovy. These humpback smooth-hound sharks are placental viviparious sharks, meaning that the embryo forms inside the mother tethered by the placental cord. The threats currently causing population decline to humpback smooth-hound sharks surround issues with local fisheries and management.
Bathyraja is a large genus of skates in the family Arhynchobatidae.
The deepsea skate is a species of softnose skate, in the family Arhynchobatidae, found in deep water from 362 to 2,906 m, usually on the continental slope. They are distributed from off northern Baja California around Coronado Island and Cortes Bank, north to the Bering Sea, and west to Japan. There have also been sightings north of Darwin Island within the Galapagos Marine Reserve in 2015. This was the first record of the Deepsea Skate being found in the tropical eastern Pacific Ocean. It is fairly common below 1,000 m, and is taken as bycatch in deepwater trawls and traps. The species name abyssicola comes from the Greek abyssos meaning "bottomless", and cola meaning "living at depths".
The Pacific white skate is a species of skate in the family Arhynchobatidae. It is one of the deepest-living of all skates, occurring at a depth of 800 to 2,906m on the continental slope. It is native to the southeast Pacific Ocean from the Galapagos Islands to off Waldport, Oregon; an egg case and embryo has been collected from the Farallon Islands off San Francisco. In 2023, the largest nursery of the species was discovered in the Pacific coast of Canada.
Naso tonganus, the bulbnose unicornfish, hump-nosed unicornfish, humphead unicornfish, or the humpnose unicorn, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This species is found in the Indo-Pacific. It is of value in commercial fisheries.
The graytail skate, or gray tail skate, is a large species of skate in the family Arhynchobatidae, native to the south-western Atlantic Ocean and south-eastern Pacific Ocean. It is listed as endangered by the IUCN. It was caught as part of a commercial fishery around the Falkland Islands and is a bycatch in several other fisheries.
Kiyomatsu Matsubara was a Japanese marine biologist, ichthyologist, and herpetologist.
The longnose deep-sea skate is a large skate in the family Arhynchobatidae. It was first described in 1985 from specimens collected near New Zealand. It is known to be a deep-water skate, however lack of research trawls at depths past 1500 meters limits knowledge of the depths where the species can be found. The species is dark brown or grey, with an eponymous elongated snout. The species has been measured to be a maximum of 140 cm in total length, although size variation and growth patterns are not known.
Pterygotrigla arabica is a species of ray-finned fish belonging to the family Triglidae, the gurnards and sea robins. This fish is found in the northern Indian Ocean.
Lepidotrigla papilio, the spiny gurnard, butterfly gurnard, Eastern spiny gurnard or Southern spiny gurnard. is a species of demersal marine ray-finned fish belonging to the family Triglidae, the gurnards and sea robins. This species is endemic to Australia.
Bambradon is a monotypic genus of marine ray-finned fish belonging to the family Bembridae, the deepwater flatheads. Its only species, Bambradon laevis, is found in the northwestern Pacific Ocean off Japan.
Bathyraja andriashevi, the little-eyed skate, is a species of skate in the family Arhynchobatidae found in the western Pacific Ocean.
Bathyraja bergi, the bottom skate, is a species of skate in the family Arhynchobatidae found in the north-western Pacific Ocean.
Bathyraja fedorovi, the cinnamon skate, is a species of skate in the family Arhynchobatidae found in the north-western Pacific Ocean.
Bathyraja taranetzi, the mud skate, is a species of skate in the family Arhynchobatidae found in the north-western Pacific Ocean.
Bathyraja tzinovskii, the creamback skate, is a species of skate in the family Arhynchobatidae found in the western Pacific Ocean.
Bathyraja matsubarai, the dusky-purple skate, is a species of skate in the family Arhynchobatidae found in the north-western Pacific Ocean.
Bathyraja cousseauae, also known as Cousseau's skate or the joined-fins skate is a species of skate within the genus Bathyraja. The species is found in the Southwest Atlantic Ocean.
