Английская Википедия:Grimpoteuthis abyssicola
Шаблон:Short description Шаблон:Speciesbox
Grimpoteuthis abyssicola, commonly known as the red jellyhead,[1] is a species of small deep-sea octopus known from two specimens. The holotype specimen was a female collected on the Lord Howe Rise (central Tasman Sea off New Zealand), between 3154 and 3180 meters depth.[2][3][4] A second specimen (a male) was collected on the continental slope of south-eastern Australia between 2821 and 2687 m depth.[5]
The octopus has very delicate tissues, making it susceptible to damage by trawling nets. The arms and web are a deep maroon colour, while the body and head are nearly transparent.[1]
The female type specimen had a mantle about 75 millimeters long, while its total body reached 305 millimeters long (the male specimen had a longer mantle length at 99 mm, but a shorter total length of 245 mm).[2][5] G. abyssicola's internal shell is U-shaped, lacking any lateral prominences/shoulders, and with the ends of shell rounded, this shell shape is distinctive from other Grimpoteuthis (with the possible exception of Grimpoteuthis hippocrepium).[5][3] This species can also be distinguished from other members of Grimpoteuthis due to the absence of both a radula and posterior salivary glands, how many suckers it has (up to 74 or 77 per arm on the known specimens), and where the arm cirri commence.[3][5] On the holotype the first 6-8 suckers on each arm are small, then larger up to sucker 30-35, followed this are a further 30-35 suckers rapidly decreasing in size to the arm tip.[2][3]
Present records of this species are too few to assess its conservation status (but it is likely not threatened given its abyssal distribution).[6]
References
- ↑ 1,0 1,1 Шаблон:Cite web
- ↑ 2,0 2,1 2,2 Шаблон:Cite journal
- ↑ 3,0 3,1 3,2 3,3 Шаблон:Cite web
- ↑ Шаблон:Cite web
- ↑ 5,0 5,1 5,2 5,3 Шаблон:Cite journal
- ↑ Ошибка цитирования Неверный тег
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- Английская Википедия
- Octopuses
- Molluscs of the Pacific Ocean
- Molluscs described in 1999
- Species known from a single specimen
- Cephalopods of Oceania
- Cephalopods of Australia
- Molluscs of New Zealand
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