| 词条 | Stygiomedusa |
| 释义 |
| image = Stygiomedusa Gigantea ov.jpg | image_caption = Illustration of Stygiomedusa gigantea | taxon = Stygiomedusa gigantea | authority = (Browne, 1910)[1] | synonyms = * Diplulmaris gigantea
}}Stygiomedusa is a genus of giant deep sea jellyfish in the family Ulmaridae.[2] It is monotypic with a single species, Stygiomedusa gigantea. With only 115 sightings in the last 110 years it is a jellyfish that is rarely seen, but believed to be widespread throughout the world.[3] It is thought to be one of the largest invertebrate predators in the deep sea ecosystem.[4] The jellyfish has an umbrella-shaped bell that can be up to a metre wide. It also has four "paddle-like" arms up to 10 metres long, which, as they lack stinging tentacles, may be used instead to trap prey.[4] Giant Stygiomedusa have been observed and filmed off the Pacific coast of the United States by scientists and by ROVs off the coast of Japan and in the Gulf of Mexico.[4][5] Evidence has been reported of a symbiotic relationship existing between Stygiomedusa gigantea and Thalassobathia pelagica, a species of Ophidiiform fish.[6] References1. ^{{cite web |date= |title=Marine Species Identification Portal : Stygiomedusa gigantea |publisher=Species-identification.org |url=http://species-identification.org/species.php?species_group=zsao&id=2439 |accessdate=2015-08-19}} 2. ^{{cite book |last=Brown |first=Edward T. |editor-last=Bell |editor-first=Jeffrey |date=1907 |title=Natural History: Voyage of the S.S. Discovery under Capt. R.F. Scott |chapter=Coelentera |series=Zoology and Botany |volume=5 |publisher=Biodiversity Heritage Library |oclc=727233164 |doi=10.5962/bhl.title.18281 |page=57 |url=https://www.biodiversitylibrary.org/page/17270097#254 |accessdate=2015-08-19}} 3. ^{{Cite news|url=http://news.bbc.co.uk/earth/hi/earth_news/newsid_8638000/8638527.stm|title=Giant deep sea jellyfish filmed|date=2010-04-23|access-date=2019-03-17|language=en-GB}} 4. ^1 2 {{cite news |last=Bourton |first=Jody |date=2010-04-23 |title=BBC - Earth News - Giant deep sea jellyfish filmed in Gulf of Mexico |publisher=BBC News |url=http://news.bbc.co.uk/earth/hi/earth_news/newsid_8638000/8638527.stm |accessdate=2010-07-08}} 5. ^{{cite web |last=O'Neill |first=Kara |date=2015-08-19 |title=Mysterious alien-like creature spotted in this deep sea footage - but what is it? |work=Daily Mirror |url=https://www.mirror.co.uk/news/weird-news/mysterious-alien-like-creature-spotted-6279119|accessdate=2015-08-19}} 6. ^{{cite journal|last1=Drazen|first1=Jeffrey C.|last2=Robison|first2=Bruce H.|year=2004|title=Direct observations of the association between a deep-sea fish and a giant scyphomedusa|journal=Marine and Freshwater Behaviour and Physiology|volume=37|issue=3|pages=209–214|doi=10.1080/10236240400006190}} External links[https://www.youtube.com/watch?v=sLGkBnw6X6U Rare monster jellyfish caught on tape] – Discovery Channel {{Taxonbar|from=Q140925}} 9 : Ulmaridae|Cnidarians of the Pacific Ocean|Cnidarians of the Caribbean Sea|Marine fauna of Asia|Marine fauna of North America|Marine fauna of the Gulf of California|Western North American coastal fauna|Fauna of California|Animals described in 1910 |
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