| Squalus altipinnis | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Order: | Squaliformes |
| Family: | Squalidae |
| Genus: | Squalus |
| Species: | S. altipinnis |
| Binomial name | |
| Squalus altipinnis | |
Squalus altipinnis, the western highfin spurdog, is a dogfish of the family Squalidae found on the continental shelf off Western Australia, at depths between 220 and 510 m. Its reproduction is ovoviviparous. [2]
The spiny dogfish, spurdog, mud shark, or piked dogfish is one of the best known species of the Squalidae (dogfish) family of sharks, which is part of the Squaliformes order. While these common names may apply to several species, Squalus acanthias is distinguished by having two spines and lacks an anal fin. It is found mostly in shallow waters and further offshore in most parts of the world, especially in temperate waters. Spiny dogfish in the northern Pacific Ocean have recently been reevaluated and found to constitute a separate species, now known as "Pacific spiny dogfish", Squalus suckleyi.
Squalus is a genus of dogfish sharks in the family Squalidae. Commonly known as spurdogs, these sharks are characterized by smooth dorsal fin spines, teeth in upper and lower jaws similar in size, caudal peduncle with lateral keels; upper precaudal pit usually present, and caudal fin without subterminal notch. In spurdogs, the hyomandibula is oriented at a right angle to the neurocranium, while in other sharks, the hyomandibula runs more parallel to the body. This led some to think that the upper jaw of Squalus would not be as protractile as the jaws of other sharks. However, a study that compared different jaw suspension types in sharks showed that this is not the case and that Squalus is quite capable of protruding its upper jaw during feeding.
The longnose spurdog is a dogfish shark of the genus Squalus, found over continental shelves in all oceans, at depths of between 15 and 800 metres. They reach one metre in length.
The Cuban dogfish is a dogfish, a member of the family Squalidae in the order Squaliformes. It is found in the Western Atlantic from North Carolina to Florida, in the Gulf of Mexico, around Cuba, Hispaniola, southern Brazil, and Argentina. It inhabits continental shelves and uppermost slopes at depths from 60 to 380 m.
The Japanese spurdog is a dogfish, a member of the family Squalidae. It is found in the western Pacific Ocean – southeastern Japan and the East China Sea, including the Republic of Korea, the Philippines, and the Arafura Sea.
The blacktailed spurdog is a dogfish, a member of the family Squalidae, found around New Caledonia in the central Pacific Ocean, at depths from 320 to 320 m. Its length is up to 75 cm.
The Cyrano spurdog is a dogfish, a member of the family Squalidae, found in the western central Pacific Ocean between latitudes 16°S and 18°S at depths between 320 and 400 m. Its length is up to 77 cm.
Squalus notocaudatus, the bartail spurdog, is a dogfish of the family Squalidae, found on the continental shelf off Queensland, Australia, at depths between 220 and 450 m. The length of the longest specimen measured, an immature male, is 62 cm (24 in). Its reproduction is ovoviviparous .
Squalus albifrons, the eastern highfin spurdog, is a dogfish described in 2007. It is a member of the family Squalidae, found on the continental shelf off Queensland, Australia, at depths between 220 and 510 m. The length of the longest specimen measured is 65 cm (26 in). Its reproduction is ovoviviparous.
Squalus crassispinus, the fatspine spurdog, is a dogfish of the family Squalidae, found on the continental shelf off the northern coast of Western Australia, at depths of 180 to 200 metres. The length of the longest male specimen measured is 56 centimetres (22 in).
Squalus nasutus, the western longnose spurdog, is a dogfish of the family Squalidae, found on the continental shelf off the northwest and southwest coasts of Western Australia, at depths between 300 and 510 m. Its length is at least 55 cm.
Squalus grahami, the eastern longnose spurdog, is a dogfish of the family Squalidae, found off northern Queensland, at depths between 220 and 500 m. Its length is up to 64 cm. Its reproduction is ovoviviparous.
Enneapterygius altipinnis also known as the highfin triplefin is a species of triplefin blenny in the genus Enneapterygius. It is found in the Red Sea. It was regarded as a synonym of Enneapterygius tutuilae but in 2018 the species was reinstated as being valid.
The bighead spurdog is a rare and little-known species of dogfish shark in the family Squalidae. It is found in deep water south of New Caledonia, and over the Norfolk Ridge. Reaching at least 90 cm (35 in) in length, this stocky shark is brown above and light below, with a broad head and two dorsal fins with long spines. It is the only member of its genus with both one- and three-pointed dermal denticles. An infrequent bycatch of longline fisheries, this species is listed under Data Deficient by the International Union for Conservation of Nature (IUCN).
The Philippine spurdog or Indonesian greeneye spurdog, is a relatively large species of dogfish shark native to waters off the coast of Australia, the Philippines, and Indonesia. The species was identified in 1912 from a specimen caught off the coast of Luzon Island, and has been both bycatch and a targeted species in fisheries since. Its taxonomy is complex, having been renamed in 1931, being misidentified as a type of shortspine spurdog, then being revived as a species in 2007.
Scarus altipinnis, the filament-finned parrotfish, high-fin parrotfish or mini-fin parrotfish, is a species of marine ray-finned fish, a parrotfish from the family Scaridae. It occurs in the tropical and subtropical Western Pacific Ocean.
The Pacific spiny dogfish is a common species of the Squalidae (dogfish) family of sharks and are among the most abundant species of sharks in the world. This species is closely related to Squalus acanthias and for many years they were treated as a single species. Recent research, using meristic, morphological and molecular data led to the resurrection of Pacific Spiny Dogfish as a separate species. The American Fisheries Society recommends the common name "Pacific Spiny Dogfish" for Squalus suckleyi over alternatives such as "Spotted Spiny Dogfish" and "North Pacific Spiny Dogfish" and "Spiny Dogfish" for Squalus acanthias.
The Japanese shortnose spurdog is a dogfish shark in the genus Squalus. It is found from southern Japan to the South China Sea. The length of the longest specimen measured is 60 cm (24 in).
Edmund's spurdog is a dogfish described in 2007. It is a member of the family Squalidae, found off western Australia and Indonesia. The length of the longest specimen measured is 70.0 cm (27.6 in).
The northern spiny dogfish, also known as the brown dogfish, grey spiny dogfish or Griffin's dogfish, is a marine species of the family Squalidae, found off New Zealand's North Island. The length of the longest specimen measured is 89.9 cm (35.4 in).
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