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Imagem de Cirrothauma murrayi Chun 1911
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Cirrothauma murrayi Chun 1911

Cirrothauma murrayi ( Inglês )

fornecido por wikipedia EN

Cirrothauma murrayi, the blind cirrate octopus,[2] is a nearly blind octopus whose eyes can sense light, but not form images. It has been found worldwide, usually 1,500 to 4,500 metres (4,900 to 14,800 ft) beneath the ocean's surface.[3][4] Like other cirrates, it has an internal shell, muscular fins for swimming, and a web connecting the arms.[5]

The species was first caught by an expedition led by Sir John Murray in 1910,[6] and it was later named in honor of Murray. It was described by German marine biologist Carl Chun in 1911.[4]

The large buccal mass, esophagus, and stomach of the Cirrothauma Murrayi strongly suggest whole organisms, especially crustaceans, are part of its diet. The enzymatic action of salivary excretions separates the crustacean's musculoskeletal attachments and allows for the tissue to be removed, leaving the exoskeleton of the crustacean undamaged.[7]

Description

Eye structure

The eye structure is very different from other octopods. Their eyes are small, lens-less and almost non-functional, as the eyes also lack irises and ciliary bodies.[8] The nearly sightless eyes are embedded deep in the gelatinous tissue of their head.[8]

Suckers

Cirrothauma murrayi has about six strong sessile suckers which help them swim as well as hunt fish.[8]

References

  1. ^ Lyons, G.; Allcock, L. (2014). "Cirrothauma murrayi". IUCN Red List of Threatened Species. 2014: e.T163011A963624. doi:10.2305/IUCN.UK.2014-3.RLTS.T163011A963624.en. Retrieved 20 November 2021.
  2. ^ "Cirrothauma murrayi Chun, 1911". World Register of Marine Species. MolluscaBase.
  3. ^ "Cirrothauma murrayi". tolweb.org. Retrieved 2018-09-14.
  4. ^ a b Vecchione, Michael; Young, Richard. "Cirrothauma murrayi". Tree of Life Web Project. Retrieved 12 March 2018.
  5. ^ Mangold, Katharina; Vecchione, Michael; Young, Richard. "Cirrata". Tree of Life Web Project. Retrieved 12 March 2018.
  6. ^ Aldred, Nixon & Young 1983, p. 4.
  7. ^ Aldred, Nixon & Young 1983.
  8. ^ a b c "Cirrothauma murrayi". tolweb.org. Retrieved 2018-09-14.
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Cirrothauma murrayi: Brief Summary ( Inglês )

fornecido por wikipedia EN

Cirrothauma murrayi, the blind cirrate octopus, is a nearly blind octopus whose eyes can sense light, but not form images. It has been found worldwide, usually 1,500 to 4,500 metres (4,900 to 14,800 ft) beneath the ocean's surface. Like other cirrates, it has an internal shell, muscular fins for swimming, and a web connecting the arms.

The species was first caught by an expedition led by Sir John Murray in 1910, and it was later named in honor of Murray. It was described by German marine biologist Carl Chun in 1911.

The large buccal mass, esophagus, and stomach of the Cirrothauma Murrayi strongly suggest whole organisms, especially crustaceans, are part of its diet. The enzymatic action of salivary excretions separates the crustacean's musculoskeletal attachments and allows for the tissue to be removed, leaving the exoskeleton of the crustacean undamaged.

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Cirrate de Murray ( Francês )

fornecido por wikipedia FR

Cirrothauma murrayi

La cirrate de Murray (Cirrothauma murrayi) est une espèce d'octopode de la famille des Cirroteuthidae.

 src=
Spécimen pêché par Carl Chun.

Cette espèce vit à une profondeur comprise entre 1 500 et 4 500 mètres. C'est le seul céphalopode aveugle[1],[2]. Les yeux sont dépourvus de cristallin ; la rétine est réduite et reliée à la cornée. Les yeux sont recouverts par les tissus de la tête gélatineuse sans connexion avec la surface. Néanmoins, l'œil fonctionne toujours comme un photorécepteur simple qui ne peut pas former d'images[3].

Carl Chun a dédié en 1911 cet octopode à l'océanographe John Murray.

Notes et références

  1. (en) R. G. Aldred, M. Nixon et J. Z. Young, « The blind octopus, Cirrothauma », Nature, vol. 275,‎ 12 octobre 1978, p. 547 - 549 (DOI )
  2. Chun, C. 1910. Die Cephalopoden. Oegopsida. Wissenschaftliche Ergebnisse der Deutschen Tiefsee-Expedition, "Valdivia" 1898-1899, 18: 1-522 + Atlas.
  3. (en) Référence Tree of Life Web Project : Cirrothauma murrayi

Annexes

Références taxinomiques

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Cirrate de Murray: Brief Summary ( Francês )

fornecido por wikipedia FR

Cirrothauma murrayi

La cirrate de Murray (Cirrothauma murrayi) est une espèce d'octopode de la famille des Cirroteuthidae.

 src= Spécimen pêché par Carl Chun.

Cette espèce vit à une profondeur comprise entre 1 500 et 4 500 mètres. C'est le seul céphalopode aveugle,. Les yeux sont dépourvus de cristallin ; la rétine est réduite et reliée à la cornée. Les yeux sont recouverts par les tissus de la tête gélatineuse sans connexion avec la surface. Néanmoins, l'œil fonctionne toujours comme un photorécepteur simple qui ne peut pas former d'images.

Carl Chun a dédié en 1911 cet octopode à l'océanographe John Murray.

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Cirrothauma murrayi ( Neerlandês; Flamengo )

fornecido por wikipedia NL

Cirrothauma murrayi 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 inktvis komt uit het geslacht Cirrothauma en behoort tot de familie Cirroteuthidae. Cirrothauma murrayi werd in 1911 beschreven door Chun.[1]

Bronnen, noten en/of referenties
  1. World Register of Marine Species, Cirrothauma murrayi. Marinespecies.org. Geraadpleegd op 3 oktober 2011.
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Cirrothauma murrayi ( Português )

fornecido por wikipedia PT

Cirrothauma murrayi é uma espécie de molusco pertencente à família Cirroteuthidae.

A autoridade científica da espécie é Chun, tendo sido descrita no ano de 1911.

Trata-se de uma espécie presente no território português, incluindo a zona económica exclusiva.

Referências

  • Cirrothauma murrayi - World Register of Marine Species (consultado em 29 de dezembro de 2013).

 title=
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Cirrothauma murrayi: Brief Summary ( Português )

fornecido por wikipedia PT

Cirrothauma murrayi é uma espécie de molusco pertencente à família Cirroteuthidae.

A autoridade científica da espécie é Chun, tendo sido descrita no ano de 1911.

Trata-se de uma espécie presente no território português, incluindo a zona económica exclusiva.

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Distribution ( Inglês )

fornecido por World Register of Marine Species
cosmopolitan

Referência

van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO).

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Jacob van der Land [email]

Habitat ( Inglês )

fornecido por World Register of Marine Species
bathyal to abyssal

Referência

van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO).

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WoRMS Editorial Board
contribuidor
Jacob van der Land [email]

Habitat ( Inglês )

fornecido por World Register of Marine Species
Bathypelagic

Referência

Census of Marine Zooplankton, 2006. NOAA Ship Ronald H Brown, deployment RHB0603, Sargasso Sea. Peter Wiebe, PI. Identifications by L. Bercial, N. Copley, A. Cornils, L. Devi, H. Hansen, R. Hopcroft, M. Kuriyama, H. Matsuura, D. Lindsay, L. Madin, F. Pagè

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