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Onychoteuthis is a genus of squid in the family Onychoteuthidae. The type species is Onychoteuthis bergii. While the genus is found worldwide in tropical and subtropical oceans, they can also occur in the North Pacific Ocean. There were previously considered to be four species in the genus but there are now considered to be roughly 10. These squid are frequently observed in the surface waters at night and they are often caught using dipnet at nightlight stations. The young squid are usually the only specimens captured using standard midwater trawls, the older squid are apparently able to avoid the trawls. They can, however be collected from the air as individuals are able to leap high out of the water, sometimes even landing on the deck of a ship.[2]
Most species belonging to the genus have a mantle length of under 200 mm, however the larger members may measure over 300 mm.[2] The species in this genus have a densely muscular, cylindrical mantle which is tapered posteriorly into a pointed tail. Their skin is smooth and has no warts or wrinkles. The gladius can be seen through the skin along the midline of the back. The fins are rhomboid in shape, heart shape or arrow shaped and are pointed posteriorly. The species of Onychoteuthis have 8-10 prominent nuchal folds. Their tentacular clubs have 2 central series of 19-27 large, strong hooks on their manus and the adults either have no lateral sucker series no marginal series of suckers. or they are vestigial. The chitinous rings of the suckers on the arms is smooth, with no teeth. They have photophores in their mantle cavity with a small one placed anteriorly on the ink sac, another near the anus; a large one placed posteriorly on the intestine and a bilobed photophore located on the ventral surface of each eye.[3]
The following species are included in the genus:[1]
There are also two species which are considered taxa inquirendum and up to 11 which are classed as nomen dubia.[1]
Onychoteuthis is a genus of squid in the family Onychoteuthidae. The type species is Onychoteuthis bergii. While the genus is found worldwide in tropical and subtropical oceans, they can also occur in the North Pacific Ocean. There were previously considered to be four species in the genus but there are now considered to be roughly 10. These squid are frequently observed in the surface waters at night and they are often caught using dipnet at nightlight stations. The young squid are usually the only specimens captured using standard midwater trawls, the older squid are apparently able to avoid the trawls. They can, however be collected from the air as individuals are able to leap high out of the water, sometimes even landing on the deck of a ship.
Onychoteuthis est un genre qui regroupe plusieurs espèces de céphalopode de la famille des Onychoteuthidae qui se rencontrent dans tous les océans du globe dans les régions tropicales et subtropicales mais également dans le Pacifique Nord.
Les membres de ce genre ont généralement un manteau d'une longueur inférieure à 200 mm, mais sur certaines espèces il peut dépasser les 300 mm.
Selon World Register of Marine Species (13 sept. 2010)[1] :
Selon ITIS (13 sept. 2010)[2] :
Onychoteuthis est un genre qui regroupe plusieurs espèces de céphalopode de la famille des Onychoteuthidae qui se rencontrent dans tous les océans du globe dans les régions tropicales et subtropicales mais également dans le Pacifique Nord.
Onychoteuthis Lichtenstein, 1818 è un genere che raggruppa varie specie di cefalopodi della famiglia degli Onycoteutidi che si incontrano in tutti gli oceani del globo nelle regioni tropicali e subtropicali, ma anche nel Nord Pacifico.
I membri di questo genere hanno generalmente un mantello di una lunghezza inferiore ai 200 mm, ma in alcune specie può oltrepassare i 300 mm.
Secondo World Register of Marine Species (13 settembre 2010)[1]:
Secondo ITIS (13 settembre 2010)[2]:
Onychoteuthis Lichtenstein, 1818 è un genere che raggruppa varie specie di cefalopodi della famiglia degli Onycoteutidi che si incontrano in tutti gli oceani del globo nelle regioni tropicali e subtropicali, ma anche nel Nord Pacifico.
Onychoteuthis is een geslacht van inktvissen uit de familie van de Onychoteuthidae.
Onychoteuthis is een geslacht van inktvissen uit de familie van de Onychoteuthidae.
Onychoteuthis là một chi mực thuộc họ Onychoteuthidae.
Chi này có các loài sau:[1]
Onychoteuthis là một chi mực thuộc họ Onychoteuthidae.
