However, Gigantura chuni (at about 15.6 cm standard length) is slightly more robust in build. Gigantura indica is the larger of the two species at about 20.3 cm standard length (a measurement excluding the caudal fin). The loss of these structures is attributed to neoteny that is, the retention of larval characteristics. The pelvic fins and adipose fin are absent.Īlso absent are the premaxilla, orbitosphenoid, parietal, symplectic, posttemporal, and supratemporal bones, the gill rakers, and the branchiostegal rays. The anal fin (about 8–14 rays) and single dorsal fin (about 16–19 rays) are both situated far back of the head. The pectoral fins are large (about 30–42 rays), situated above the gill opening, and inserted horizontally. The transparent fins are spineless the deeply forked and hypocercal caudal fin is most striking, with the lower lobe extended to a length exceeding that of the body. The gas bladder is absent and the stomach is highly distensible. The body lacks scales, but is covered in easily abraded, silvery guanine, which imparts a greenish to purplish iridescence in life. The highly extensile mouth is lined with sharp, slightly recurved and depressible teeth and it extends well past the eyes. Their heads end in short, pointed snouts. The Giganturidae are slender, slightly tapered fish with large heads dominated by large, forward-pointing, telescoping eyes with large lenses. The currently recognized species in this genus are: The genus name Gigantura refers to the Gigantes, a race of giants in Greek mythology-coupled with the suffix oura, meaning 'tail', thus Gigantura refers to the greatly elongated, ribbon-like lower half of the tailfin that may comprise over half of the total body length. The common name of these fish is related to their bizarre, tubular eyes. Though rarely captured, they are found in cold, deep tropical to subtropical waters worldwide. The two known species are within the genus Gigantura. The largest of the rings extends 14 billion miles away from its host star (about 150 times the distance between Earth and the sun.Telescopefish are small, deep-sea aulopiform fish comprising the small family Giganturidae. They are filled with gas, dust, and debris that will eventually-give or take a few billion years-coalesce into planets and moons and other small bodies. The rings themselves are an especially compelling part of Fomalhaut. It’s one of the brightest stars in the night sky, and so it comes as no surprise that the world’s most powerful space telescope ever to be launched has managed to glimpse it looking like an orange nova surrounded by rings upon rings. The findings were published Monday in Nature Astronomy.įomalhaut is located 25 light years away from Earth, in the constellation Pisces Austin’s (the “Southern Fish”).
NASA’s James Webb Space Telescope snapped a photo of a young star called Fomalhaut-and it managed to spot the extraordinary backdrop of a set of glowing dust belts surrounding a nearby young star. You’d be mistaken to think an artist drew up the picture you see above.
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