Bighead catshark

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Bighead catshark
Apristurus bucephalus.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Superorder: Selachimorpha
Order: Carcharhiniformes
Family: Scyliorhinidae
Genus: Apristurus
Species:
A. bucephalus
Binomial name
Apristurus bucephalus
Bighead Catshark.png
Distribution of the bighead catshark

The bighead catshark (Apristurus bucephalus) is a species of fish in the family Scyliorhinidae endemic to Australia. Its natural habitat is the open seas. It belongs to a genus of poorly known deep-water catsharks, and is recorded from only three specimens taken off Perth, Western Australia. This species could be rare or uncommon, and the effects of fisheries are unknown, though if its biology is like other deep-water shark species, it may not be sufficiently fecund to withstand exploitation pressures.

Related Research Articles

Brown catshark Species of shark

The brown catshark is commonly found in the Pacific Ocean, ranging from the northern Pacific waters off the coast of British Columbia and south to the Baja California peninsula in Mexico. They may live as far south as Ecuador and Peru. Brown catsharks are deep-water sharks that live on the outer continental shelf and the upper slope. They have been known to live at depths ranging from 30 to 650 m and live on the bottom, usually in muddy or sandy areas. The brown catshark, when originally described, was called Catulus brunneus.

<i>Apristurus</i> Genus of sharks

Apristurus is a genus of catsharks, the family Scyliorhinidae, commonly known as the ghost or demon catsharks.

Flathead catshark Species of shark

The flathead catshark is a catshark of the family Scyliorhinidae in the order Carcharhiniformes, found in the deep waters of the northwest Pacific Ocean.

White-bodied catshark Species of shark

The white-bodied catshark is a catshark of the family Scyliorhinidae.

White ghost catshark Species of shark

The white ghost catshark is a shark of the catshark family Scyliorhinidae found in deep water in the northeast Atlantic between latitudes 57°N and 58°N. A deep-water catshark known from the eastern North Atlantic from depths of 1,014 to 1,800 m, it is known from only a limited number of specimens. It reaches a maximum of 54 cm or 1.7 ft total length which is a medium size for the Apristurus genus.

Shortnose demon catshark Species of shark

The shortnose demon catshark is a catshark of the family Scyliorhinidae found only in deep water in the East China Sea. Its length is up to 40 cm. A. internatus is known only from the holotype and a paratype, both caught in the East China Sea, probably taken as bycatch in deepwater trawl fisheries. The reproduction of this catshark is oviparous.

Bulldog catshark Species of shark

The bulldog catshark is a catshark of the family Scyliorhinidae, found in the deep waters of the East China Sea and in the Northwest Pacific. In New Zealand waters it is found at the Reinga Ridge, the West Norfolk Ridge, the Hikurangi Trough and the Chatham Rise as well as on the Campbell Plateau.

South China catshark Species of shark

The South China catshark is a catshark of the family Scyliorhinidae, known only from the holotype, which was taken from the South China Sea at a depth of 537 m. Its length is 42 cm, but this measurement was taken from an immature specimen. The reproduction of the South China catshark is oviparous.

Saldanha catshark Species of shark

The Saldanha catshark is a species of catshark, belonging to the family Scyliorhinidae. This catshark is found from Cape Columbine to south of False Bay in South Africa, between 31 and 40°S. Its length is up to 88 cm. It is a plain, dark grey-brown, stout catshark, with moderately large eyes, a broad snout, and large pectoral fins.

Largenose catshark Species of shark

The largenose catshark is a catshark of the family Scyliorhinidae. The largenose catshark is found on the upper continental slopes in the eastern Pacific, from the Gulf of Panama to Ecuador and central Chile, between 9°N and 28°S. It can grow up to 70 cm. Its reproduction is oviparous. This nose shark is considered to be a harmless species. It is known to originate from the Gulf of Panama, Ecuador, and Central Chile.

Ghost catshark Species of shark

The ghost catshark is a catshark of the family Scyliorhinidae found on the continental slopes in the northwest Atlantic off Massachusetts, the northeast Atlantic from the Porcupine Bank west of Ireland and the southern Atlantic off Cape Town, at depths between 600 and 1,900 metres.

Spatulasnout catshark Species of shark

The spatulasnout catshark, also known as the Borneo catshark or flatnose catshark, is a catshark of the family Scyliorhinidae, found in the western Pacific between 35°N and 1° N. Its length is up to 80 cm.

Spongehead catshark Species of shark

The spongehead catshark is a rare species of deep-sea catshark, family Scyliorhinidae. This species was only known from two specimens taken in the Pacific Ocean: an adult from near Bird Island, Hawaii, and a juvenile from the Banda Sea off Sulawesi. They are found on or near the bottoms of insular continental slopes, at depths of 570 to 1,480 meters. In 2002, the spongehead catshark was seen alive in its natural habitat for the first time, from the submersible Pisces IV at a depth of about a kilometer, on the Northampton Seamount off the northwestern Hawaiian Islands.

Broadnose catshark Species of shark

The broadnose catshark is a catshark of the family Scyliorhinidae, the holotype and only specimen being found in deep water in the Andaman Sea in the Indian Ocean between 16 and 10°N. Its length is around 26 cm, although this measurement was taken from an immature specimen. The reproduction of this catshark is oviparous. The threats are not exactly known but it may be deepwater fisheries.

Longnose catshark Species of shark

The longnose catshark is a catshark of the family Scyliorhinidae found in the eastern central Pacific from central and southern California and the Gulf of California, between latitudes 38° N and 23° N, at depths down to 1,890. Its length is up to 58 cm.

Longhead catshark Species of shark

The longhead catshark or smoothbelly catshark is a species of catshark, family Scyliorhinidae, with a patchy distribution in the Indo-Pacific from Mozambique to southern Japan to northern Australia. It is found in water between 500 and 1,140 m deep. This species grows to 59 cm (23 in) long and is characterized by its extremely long and narrow snout, short abdomen, and long anal and caudal fins. In addition, a large area of the anterior ventral portion of its body lacks dermal denticles. The longhead catshark is oviparous and the only known cartilaginous fish that is normally hermaphroditic, with the majority of individuals having both the functional reproductive organs of one sex and the undeveloped reproductive organs of the opposite sex.

The roughskin catshark is a species of catshark in the family Scyliorhinidae found near Australia and New Zealand. Its natural habitat is the open seas. This species belongs to a genus of poorly known deep-water catsharks.

The Pinocchio catshark is a species of catshark in the family Scyliorhinidae found in Australia and possibly New Zealand. Its natural habitat is the open seas. It belongs to a genus of poorly known deep-water sharks. Very little is known of its biology. Possibly a widely distributed deep-water catshark found along the Australian continental slope at depths of 590 to 1,000 m, it consists of several distinct populations which may be separate species. Although part of the distribution includes heavily fished areas, particularly off southeastern Australia, much of its range is in unfished areas. Given the taxonomic uncertainty of the separate populations, it is not possible to assess the conservation status of this species at this time. However, deep-water demersal trawl fisheries are expanding in the region, and the situation should be reassessed following taxonomic clarification.

Garrick's catshark is a species of shark in the family Scyliorhinidae found in the waters of New Zealand. Its natural habitat is the open seas. The new deep-water catshark, Apristurus garricki, is described from the waters of northern New Zealand. It is named in honour of Jack Garrick.

Fedorovs catshark Species of shark

Fedorov's catshark is a catshark of the family Scyliorhinidae. This shark has oviparous reproduction. This is a very poorly known species, with less than 30 specimens reported in the scientific literature. Almost nothing is known of its biology. This species may be endemic to northern Japanese waters, where it is taken in water around 1,200 m deep. However, accurate identification of Apristurus species is particularly difficult, and further research is required to determine its geographical and bathymetrical distribution.

References

  1. Lisney, T.J.; Cavanagh, R.D. (2015). "Apristurus bucephalus". IUCN Red List of Threatened Species . 2015: e.T42703A68608866. doi: 10.2305/IUCN.UK.2015-4.RLTS.T42703A68608866.en . Retrieved 12 November 2021.