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Asperoteuthis acanthoderma is a large species of squid belonging to the family Chiroteuthidae. It is characterised by the tiny, pointed tubercules present on its skin and a Y-shaped groove in the funnel locking apparatus.[4]
The largest recorded specimen measured 78 cm (2.56 ft) in mantle length (ML), although its original total length is unknown as it was missing the very delicate feeding tentacles.[5] A smaller specimen, 45 cm (1.48 ft) ML, had tentacles 12 times the length of its mantle, giving a total length of almost 5.5 m (18 ft).[6] This makes A. acanthoderma one of the longest known cephalopods.
The type specimen of A. acanthoderma was collected in the Celebes Sea and is deposited at the Zoologisk Museum of Københavns Universitet in Copenhagen.[7] A. acanthoderma is also known from waters off the Cayman Islands, the Florida Keys,[1] Okinawa,[6] and Hawaii.[8]
The first known specimen from the Atlantic Ocean was found by a charter fisherman while floating in 250 m (820 ft) deep water off the southern coast of Key West, Florida on 20 February 2007.[9] It measured 73 cm (2.40 ft) ML and is thought to have been 4.9 to 7.3 m (16 to 24 ft) long when intact.[10] Although an incomplete specimen, missing most of its tentacles, it weighed 6 kg (13 lb) and measured 2 m (6.6 ft) in total length.[9]
In 2007, teuthologist Richard E. Young stated that "probably fewer than 10" specimens of A. acanthoderma had ever been reported.[10] However, since 2006 there has been an influx of new specimens from the Caribbean Basin and Atlantic.[1] Four specimens were recorded between 2006 and 2007 (two from the Florida Keys, one off Grand Cayman, and one off Little Cayman).[1][11] This was followed by another specimen from Little Cayman in May 2008 and another from Grand Cayman in September 2009.[1][12] A large specimen around 2 m (6.6 ft) long was found floating at the surface off the Cayman Islands in 2013.[13] It was transported to the University of South Florida St. Petersburg on a Royal Caribbean cruise and later transferred to the National Museum of Natural History in Washington, D.C.[13][14]
This squid is known to be eaten by the sperm whale, blue shark, silky shark, swordfish, and wandering albatross.[15]
Asperoteuthis acanthoderma is a large species of squid belonging to the family Chiroteuthidae. It is characterised by the tiny, pointed tubercules present on its skin and a Y-shaped groove in the funnel locking apparatus.
The largest recorded specimen measured 78 cm (2.56 ft) in mantle length (ML), although its original total length is unknown as it was missing the very delicate feeding tentacles. A smaller specimen, 45 cm (1.48 ft) ML, had tentacles 12 times the length of its mantle, giving a total length of almost 5.5 m (18 ft). This makes A. acanthoderma one of the longest known cephalopods.
The type specimen of A. acanthoderma was collected in the Celebes Sea and is deposited at the Zoologisk Museum of Københavns Universitet in Copenhagen. A. acanthoderma is also known from waters off the Cayman Islands, the Florida Keys, Okinawa, and Hawaii.
The first known specimen from the Atlantic Ocean was found by a charter fisherman while floating in 250 m (820 ft) deep water off the southern coast of Key West, Florida on 20 February 2007. It measured 73 cm (2.40 ft) ML and is thought to have been 4.9 to 7.3 m (16 to 24 ft) long when intact. Although an incomplete specimen, missing most of its tentacles, it weighed 6 kg (13 lb) and measured 2 m (6.6 ft) in total length.
In 2007, teuthologist Richard E. Young stated that "probably fewer than 10" specimens of A. acanthoderma had ever been reported. However, since 2006 there has been an influx of new specimens from the Caribbean Basin and Atlantic. Four specimens were recorded between 2006 and 2007 (two from the Florida Keys, one off Grand Cayman, and one off Little Cayman). This was followed by another specimen from Little Cayman in May 2008 and another from Grand Cayman in September 2009. A large specimen around 2 m (6.6 ft) long was found floating at the surface off the Cayman Islands in 2013. It was transported to the University of South Florida St. Petersburg on a Royal Caribbean cruise and later transferred to the National Museum of Natural History in Washington, D.C.
This squid is known to be eaten by the sperm whale, blue shark, silky shark, swordfish, and wandering albatross.
Asperoteuthis acanthoderma est une espèce de calmars géants de la famille des chiroteuthidés.
Asperoteuthis acanthoderma est un calmar de grande taille caractérisé par les petits tubercules présents sur sa peau qui lui confèrent un toucher rugueux voire piquant, et par des fouets extrêmement longs.
Le plus grand spécimen enregistré mesurait 78 cm de long pour le seul manteau, mais sa longueur totale originale demeure inconnue comme il manquait les tentacules. Un spécimen présentant un manteau de 45 cm avait une longueur totale de presque 5,5 m (soit 12 fois la longueur de sa cape). Avec le même rapport, un spécimen avec un manteau de 1 m de long mesurerait donc jusqu'à 13 m, et leur anatomie laisse penser qu'ils pourraient bien atteindre des tailles encore très supérieures. Ce qui ferait d’Asperoteuthis acanthoderma l'un des céphalopodes connus les plus longs.
Ces calmars se rencontrent dans l'océan Atlantique où ils vivent à de grandes profondeurs. On sait peu de choses de leur mode de vie.
Asperoteuthis acanthoderma est une espèce de calmars géants de la famille des chiroteuthidés.
Asperoteuthis acanthoderma is een soort in de taxonomische indeling van de inktvissen, een klasse dieren die tot de stam der weekdieren (Mollusca) behoort. De inktvis komt enkel in zout water voor en is in staat om van kleur te veranderen. Hij beweegt zich voort door water in zijn mantel te pompen en het er via de sifon weer krachtig uit te persen. De inktvis is een carnivoor en zijn voedsel bestaat voornamelijk uit vis, krabben, kreeften en weekdieren die ze met de zuignappen op hun grijparmen vangen, de tentakels kunnen wel tot 12 keer de lengte van het lichaam worden.
De inktvis komt uit het geslacht Asperoteuthis en behoort tot de familie Chiroteuthidae. Asperoteuthis acanthoderma werd in 1977 beschreven door Lu.[1]
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