Related Research Articles
Hagfish, of the class Myxini, are eel-shaped, slime-producing marine fish. They are the only known living animals that have a skull but no vertebral column, although hagfish do have rudimentary vertebrae. Along with lampreys, hagfish are jawless; they are the sister group to jawed vertebrates, and living hagfish remain similar to hagfish from around 300 million years ago.
The Otago shag,, together with the Foveaux shag formerly known as the Stewart Island shag and in its dark phase as the bronze shag, is a species of shag now found only in coastal Otago, New Zealand.
The broadgilled hagfish or New Zealand hagfish is a hagfish found around New Zealand and the Chatham Islands as well as around the south and east coasts of Australia, at depths between 1 and 900 metres.
The pygmy shark, the second-smallest of all the shark species after the dwarf lanternshark, is a squaliform shark of the family Dalatiidae, the only member of the genus Euprotomicrus. Their lengths are up to about 25 cm (10 in) for females and about 22 cm (8.7 in) for males.
McMillan's catshark is a catshark of the family Scyliorhinidae, in the order Carcharhiniformes. McMillan's cat shark is a small, rare and little-known deepwater shark. It is endemic to New Zealand. This species is found in the deep waters of the lower continental slope around New Zealand, on the West Norfolk Ridge and off North Cape. This species can be found at depths of 985-1350m. It can grow up to a length of 45 cm.
The slender roughy is a fish of the family Trachichthyidae. Until 2004 when two new species were described, the slender roughy was believed to be the only species in the genus Optivus. The slender roughy is found in the southwestern Pacific Ocean around New Zealand at depths between 10 and 100 m. Its length is up to 102 mm (4.0 in) standard length or 120 mm (4.7 in) overall total length.
The flaccid catshark is a catshark of the family Scyliorhinidae. It is endemic to the waters around New Zealand.
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.
The black roughscale catshark is a catshark of the family Scyliorhinidae. It is recorded from the north Atlantic, eastern South Atlantic, in the Indian Ocean and around Australia and New Zealand. The species can be found on continental shelf at depths between 510 and 1,520 m. It can grow up to 90 cm (35 in).
The Pacific hagfish is a species of hagfish. It lives in the mesopelagic to abyssal Pacific ocean, near the ocean floor. It is a jawless fish and has a body plan that resembles early paleozoic fish. They are able to excrete prodigious amounts of slime in self-defense.
The austral snipes, also known as the New Zealand snipes or tutukiwi, are a genus, Coenocorypha, of tiny birds in the sandpiper family, which are now only found on New Zealand's outlying islands. There are currently three living species and six known extinct species, with the Subantarctic snipe having three subspecies, including the Campbell Island snipe discovered as recently as 1997. The genus was once distributed from Fiji, New Caledonia and Norfolk Island, across New Zealand and southwards into New Zealand's subantarctic islands, but predation by introduced species, especially rats, has drastically reduced their range.
Eptatretus is a large genus of hagfish.
An eel is any ray-finned fish belonging to the order Anguilliformes, which consists of eight suborders, 19 families, 111 genera, and about 800 species. Eels undergo considerable development from the early larval stage to the eventual adult stage, and most are predators.
Chaunax is a genus of bony fish in the sea toad family Chaunacidae. They are found in tropical and subtropical oceans around the world and most species are found a depths between 180 and 1,100 m, but C. endeavouri occurs as shallow as 50 m (160 ft) and C. fimbriatus as deep as 1,985 m (6,512 ft). Depending on the exact species involved, they reach a total length of 11–40 cm (4.3–15.7 in).
Myxine glutinosa, known as the Atlantic hagfish in North America, and often simply as the hagfish in Europe, is a species of jawless fish of the genus Myxine.
Nemamyxine is a genus of hagfish.
The slender hagfish is a species of hagfish endemic to New Zealand. It is known from along the east coast, from the northern end of the Bay of Plenty to Kaikoura at depths of 35–396 m, and is found on silty to coarse sediments and rocky seabeds.
Rubicundus is a genus of hagfishes. R. eos, R. lakeside, and R. rubicundus are known from single specimens caught in the Tasman Sea, Galápagos, and Taiwan, respectively.
The bootlace hagfish is a species of hagfish in the genus Nemamyxine. Distribution, abundance, and natural history are not known. Only two specimens have been collected. One, dead, was found in a net in the Kaituna River, and thought to have been a fishery discard. The other was collected alive during a trawl at 132-140m in the Canterbury Bight. The larger specimen was 867 mm TL but maximum size is unknown. One specimen was a female with small eggs similar to those of other hagfish species..
Cyclaxyra is a genus of cucujoid beetles in the family Cyclaxyridae, and the sole extant genus in the family, others being known only from fossils. There are two described species in Cyclaxyra, found on the North Island, South Island, and Stewart Island of New Zealand.
References
- ↑ Zintzen, V., Roberts, C.D., Shepherd, L., Stewart, A.L., Struthers, C.D., Anderson, M.J., McVeagh, M., Noren, M. & Fernholm, B. (2015): Review and phylogeny of the New Zealand hagfishes (Myxiniformes: Myxinidae), with a description of three new species. Zoological Journal of the Linnean Society, 174 (2): 363–393.
 | This jawless fish-related article is a stub. You can help Wikipedia by expanding it. |