Acanthurus chronixis | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Acanthuriformes |
Family: | Acanthuridae |
Genus: | Acanthurus |
Species: | A. chronixis |
Binomial name | |
Acanthurus chronixis J. E. Randall, 1960 | |
Acanthurus chronixis the chronixis surgeonfish, Kapingamarangi surgeonfish or the half black mimic surgeonfish is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This fish is found in the western Pacific Ocean.
Acanthurus chronixis was first formally described in 1960 by the American ichthyologist John Ernest Randall with its type locality given as Teawataman Ship Pass on the southern side of Kapingamarangi Atoll in the Caroline Islands. [2] The genus Acanthurus is one of two genera in the tribe Acanthurini which is one of three tribes in the subfamily Acanthurinae which is one of two subfamilies in the family Acanthuridae. [3]
Acanthurus chronixis is known from only a few specimens . The colour in life is not known but in the type the colour of the preserved fish is brown with two white spots around the gill opening and a dark brown band around the caudal peduncle.. The dorsal fin is supported by 8 spines and 26 soft rays while the anal fin has 3 spines and 24 soft rays. This specimen had a total length of 28 cm (11 in). [4]
Acanthurus chronixis is found in the Western Pacific Ocean where it has been only definitely recorded from Kapingamarangi Atoll in the Caroline Islands. records from Japan and Taiwan are though to be misidentifications of Acanthurus pyroferus . The type was collevted in water 6 m (20 ft) deep over a mixed coral and sand substrate. [1]
Acanthurus chronixis has a very restricted known distribution and is assessed as Vulnerable by the IUCN. [1]
Acanthurus achilles, the Achilles tang, redtail surgeonfish or redspot surgeonfish, is a marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This fish is found in the Pacific Ocean.
Acanthurus olivaceus, the orange-band surgeonfish, the orange-shoulder surgeonfish or the orangebar tang, is a species of marine ray-finned fish belonging to the family Acanthuridae, this family includes the surgeonfishes, unicornfishes and tangs. It lives in the tropical waters of the Indo-west Pacific.
Acanthurus nigroris, the bluelined surgeonfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, which includes the surgeonfishes, unicornfishes and tangs. This species and A. nigros have been regarded as synonymous with the combined taxon having a wide Indo-Pacific distribution, if treated as a separate valid species it is confined to the United States Pacific islands.
Acanthurus pyroferus, chocolate surgeonfish, mimic surgeonfish, orange-gilled surgeonfish, Pacific mimic surgeon, and yellowspot surgeon, is a species of marine ray-finned fish belonging to the family Acanthuridae, which includes the sugeonfishes, unicornfishes and tangs. This species is found in the Indo-Pacific region.
Acanthurus tristis, the Indian Ocean mimic surgeonfish, blackcheek surgeonfish or yellowspot surgeonfish, is a species of marine ray-finned fish belonging to the family Acanthuridae which includes the surgeonfishes, unicornfishes and tangs. This species is found in the eastern Indian Ocean.
Acanthurus nigricans, the goldrim surgeonfish, velvet surgeon, whitecheek surgeonfish, yellow-banded surgeonfish or yellowrimmed surgeonfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This species is found from the central Indo-Pacific area to the eastern Pacific coast, Hawaii included.
Acanthurus japonicus, the Japan surgeonfish, white-faced surgeonfish, gold rim tang, powder brown tang and white-nose surgeonfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes or tangs. This fish is found in the Western Pacific Ocean.
Acanthurus maculiceps, the white-freckled surgeonfish, yellow-freckled surgeonfish, pale-lined surgeonfish,spotted-faced surgeonfish or earbar surgeonfish, 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-West Pacific region.
Acanthurus nigrofuscus, the brown surgeonfish, blackspot surgeonfish, brown tang, dusky surgeon, lavender tang or spot-cheeked surgeonfish, is a species of marine ray-finned fish belonging to the familyAcanthuridae, which includes the surgeonfishes, unicornishes and tangs. This species is a common and abundant fish occurring across a wide Indo-Pacific range.
Acanthurus albipectoralis, the whitefin surgeonfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This species is found in the Western Pacific Ocean.
Acanthurus blochii, the ringtail surgeonfish or dark surgeonfish, is a marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This fish is found in the Indo-Pacific.
Acanthurus auranticavus, the ringtail surgeonfish or orange-socket surgeonfish, 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-West Pacific.
Acanthurus bariene, the bariene surgeonfish, black-spot surgeonfish, or eye-spot surgeonfish, 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.
Acanthurus grammoptilus the finelined surgeonfish, inshore surgeonfish, Northwest surgeonfish or ring-tailed surgeonfis, is a marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This fish is found in the Western Pacific Ocean.
Acanthurus leucocheilus, the palelipped surgeonfish or the white-spine surgeonfish is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes or tangs. This fish is found in the Indo-Pacific region.
Acanthurus nubilus, the bluelined surgeon, pin-striped surgeon, dark surgeonfish or dropoff surgeonfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, which includes the surgeonfishes, unicornfishes and tangs. This species is found in the Western Pacific Ocean.
Acanthurus thompsoni, the night surgeonfish, chocolate surgeonfish, Thompson's surgeonfish, Thompson's tang or whitetail surgeonfish, is a is a species of marine ray-finned fish belonging to the family Acanthuridae which includes the surgeonfishes, unicornfishes and tangs. This species has a wide Indo-Pacific distribution.
Ctenochaetus marginatus, the blue-spotted bristletooth, blue-spotted surgeonfish or striped-fin surgeonfish, is a species of marine ray-finned fish belonging to the biology Acanthuridae which includes the surgeonfishes, unicornfishes and tangs. The blue-spotted bristletooth is found in the central and eastern Pacific Ocean.
The whitechin surgeonfish is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. It is endemic to the waters of the western Pacific Ocean in the Philippines.
The grey-head surgeonfish is a species of marine ray-finned fish belonging to the family Acanthuridae which includes the surgeonfishes. unicornfishes and tangs. This species has a wide Indo-Pacific distribution.