| Arripis xylabion | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Perciformes |
| Family: | Arripidae |
| Genus: | Arripis |
| Species: | A. xylabion |
| Binomial name | |
| Arripis xylabion | |
Arripis xylabion, the giant kahawai, northern kahawai or Kermadec kahawai, is a species of marine ray-finned fish, one of the four species in the genus Arripis , which is the only genus in the family Arripidae. It is endemic to the south-western Pacific Ocean.
Arripis xylabion is similar to the two "Australian salmon" species and like them it has a streamlined, elongate and slightly compressed body. The differences are that A xylabion has a longer caudal fin which is longer than the fish's head. [1] It also has a different gill raker count from the "salmons", A. xylabion has a count of 12-17 +20-25 while A. truttacea has 7-11 + 16-17 and A. trutta has 16-18 +28-32. A. xylabion also has a larger eye than the other two species. [2] The colouration is deep bluish-green on the head and body to deep-blue marked with irregular dark grey spots dorsally and having silvery white underparts. The pectoral fins are grey and the other fins are translucent to grey. The juveniles have a dark margin on their anal fin. The long dorsal fin has 9 spines and 15-16 soft rays while the anal fin has 3 rays and 9-10 soft rays. This species has attained a maximum recorded standard length of 85 centimetres (33 in). [3]
Arripis xylabion can be differentiated from Arripis trutta (kahawai), as the former has a smaller tail. [4]
Arripis xylabion is found in the southwestern Pacific Ocean where it occurs around Lord Howe Island and Norfolk Island in the Tasman Sea and in northern New Zealand to the Kermadec Islands. [2]
Arripis xylabion is a pelagic species which occurs over the continental shelf. [2] Very little information is known about the biology of this species. [5]
Arripis xylabion was first described in 1993 by Chris D. Paulin with the type locality given as Raoul Island in the Kermadec Islands. [6] The specific name xylabion is Greek and means "fire-tongs" and refers to the long tail lobes of this species. [2]
Arripis is a genus of marine fishes from Australia and New Zealand, known as Australian salmon, kahawai and Australian herring. They are the only members of the family Arripidae. Despite the common name, Australian salmon are not related to the salmon family Salmonidae of the Northern Hemisphere, just as Australian herring are not related to herring of the Northern Hemisphere, but belong to the order Perciformes of perch-like fishes. Australian salmon were named so by early European settlers after their superficial resemblance to the salmoniform fishes.
The Australian herring, also known as the ruff, tommy ruff, or Australian ruff, is one of four Australasian fish species within the genus Arripis. It closely resembles its sister species, the Australian salmon, although it grows to a smaller size. Like the other members of its genus, it is found in cooler waters around the southern coast of Australia. It is not biologically related to the herring family Clupeidae.
The silver sweep, also known as the false pompano, sweep, trumps or windawindawi, is a species of marine ray-finned fish from the subfamily Scorpidinae of the sea chub family Kyphosidae. It is native to the southwestern Pacific Ocean from Australia to New Zealand.
The blue maomao, also known as the violet sweep, blue sweep or hardbelly, is a species of marine ray-finned fish, a member of the subfamily Scorpidinae, part of the sea chub family Kyphosidae. It is native to the southwestern Pacific Ocean from Australia to New Zealand and the Kermadec Islands, where it can be found in inshore waters from the surface to depths of 30 m (98 ft). This fish can reach a length of 40 cm (16 in). It is commercially important and is also a popular game fish.
The porae, the grey morwong, blue morwong, butterfish, Douglas' morwong, Eastern blue morwong, great perch, queen snapper, rubberlip morwong or silver morwong, is a species of marine ray-finned fish, traditionally regarded as belonging to the family Cheilodactylidae, the members of which are commonly known as morwongs. It is found around south eastern Australia and the north eastern coast of the North Island of New Zealand at depths of about 10 to 100 metres, on sandy and rocky coasts.
Scorpaena cardinalis, the eastern red scorpionfish, grandfather hapuku, cardinal scorpionfish, Cook's scorpionfish, Cook's rockcod, Kermadec scorpionfish, Northern scorpionfish, red scorpion fish, red scorpion-cod or Sandy-bay cod, is a species of marine ray-finned fish belonging to the family Scorpaenidae, the scorpionfishes. It is found in the southwestern Pacific Ocean.
The notchheaded marblefish is a species of marine ray finned fish, one of the marblefishes belonging to the family Aplodactylidae. It is found in the southwestern Pacific Ocean.
The striped boarfish, also known as whiskered boarfish, Japanese boarfish, sailfin armourhead or whiskered armorhead, is a species of marine ray-finned fish, an armourhead of the family Pentacerotidae, which is native to the Pacific Ocean from the Hawaiian Islands westward to the coast of Asia and Australia. This is a reef-dwelling fish found at depths between 18 and 193 m. It can reach a total length of 90 cm (35 in). It is currently the only known member of the genus Evistias.
Arripis trutta, known as the Australian salmon in Australia and as kahawai in New Zealand, is a South Pacific marine fish and one of the four extant species within the genus Arripis, native to the cooler waters around the southeastern Australian coasts and the New Zealand coastline. Other common names for this species include Eastern Australian salmon, bay trout, blackback salmon, buck salmon, cocky salmon, colonial salmon, newfish and salmon trout.
The pink maomao, also known as the longfin perch, is a species of marine ray-finned fish, a member of the subfamily Anthiinae which is part of the grouper and sea bass family Serranidae. It is found in the southern Pacific and the southeastern Indian Ocean.
Helicolenus percoides, the reef ocean perch, coral cod, coral perch, Jock Stewart, kuriarki, ocean perch, red gurnard perch, red gurnard scorpionfish, red ocean perch, red perch, red rock perch, scarpee or sea perch, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, part of the family Scorpaenidae. It is found in the southwestern Pacific Ocean.
The yellowspotted sawtail, or spotted sawtail, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This fish is found in the southwest Pacific Ocean.
Pterois antennata, the spotfin lionfish, banded lionfish, broadbarred lionfish, broadbarred firefish, raggedfinned firefish, raggedfinned scorpionfish or roughscaled lionfish, is a species of marine ray-finned fish belonging to the family Scorpaenidae, the scorpionfishes and lionfishes. It is found in the tropical Indian and Western Pacific Oceans.
The western scorpionfish, also known as the neglected scorpionfish, is a species of marine ray-finned fish belonging to the family Scorpaenidae, the scorpionfishes. It is found in the western Pacific Ocean.
The splendid hawkfish, also known as mottled hawkfish, is a species of marine ray-finned fish, a hawkfish belonging to the family Cirrhitidae. It is found on tropical reefs of the Pacific Ocean.
Arripis truttacea, the Western Australian salmon, is a species of marine ray-finned fish within the genus Arripis, the only genus within the family Arripidae. It is endemic to the seas off southern Australia.
Kyphosus bigibbus, the brown chub, grey drummer, darkfin drummer, insular rudderfish, grey chub, grey sea chub, southern drummer or topsail drummer is a species of marine ray-finned fish, a sea chub from the family Kyphosidae. It is a herbivorous species which is found in subtropical and tropical seas worldwide.
Kyphosus vaigiensis, the brassy chub, brassy drummer, long-finned drummer, low-finned drummer, Northern silver drummer, Queensland drummer, Southern drummer, blue-bronze sea chub, brassy rudderfish, yellow seachub, large-tailed drummer, low-finned chub or long-finned rudderfish, is a species of marine ray-finned fish, a sea chub from the family Kyphosidae. It is a largely herbivorous species which has a circumglobal distribution. Studies in the 21st Century appear to have shown that some other species in the genus Kyphosus are junior synonyms of this taxon.
The halfbanded angelfish is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found in the southwestern Pacific Ocean.
Helicolenus barathri, the bigeye sea perch, bigeye ocean perch, coral cod, coral perch, red gurnard perch, red perch or red rock perch, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, part of the family Scorpaenidae. It is found in the southwestern Pacific Ocean.