|
Psychropotes Scotiae
''Psychropotes'' is a genus of sea cucumbers in the family Psychropotidae. The members of this genus possess the ability to swim, although this is only facultative. Description As adults, species of ''Psychropotes'' are roughly cylindrical in shape and red to violet in colour. They have a sail-like appendage which can be used for swimming during the larval stage, but is no longer needed when it is fully grown. Larvae of ''Psychropotes'' species are benthopelagic and swim around using the aforementioned appendage, however researchers are still trying to understand its use when the holothurian is fully grown. Larvae are transparent and can grow to around 2 cm long. Species The following species are recognised in the genus ''Psychropotes'': * '' Psychropotes belyaevi'' Hansen, 1975 * '' Psychropotes depressa'' (Théel, 1882) * '' Psychropotes dubiosa'' Ludwig, 1893 * '' Psychropotes dyscrita'' (Clark, 1920) * ''Psychropotes fuscopurpurea'' Théel, 1882 * ''Psychropotes hyalinu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johan Hjalmar Théel
Johan Hjalmar Théel (14 June 1848 – 20 July 1937) was a Swedish zoologist and university professor. Early life Théel was born on 14 June 1848 in Säter, Sweden. He used to go on hunting trips along the coast of Norway in his youth and became fascinated by the plants and animals he encountered, especially the marine life. He met the zoologist Sven Ludvig Lovén who sparked his interest in sipunculid or peanut worms, especially the genus '' Phascolion''. He studied at Uppsala University and ''Phascolion'' was the subject for his thesis, written in 1875. He was also an artist and included his own illustrations in his published articles. In 1875, he accompanied the explorer Adolf Erik Nordenskiöld to the mouth of the Yenisei River in an attempt to find the Northeast Passage. He joined him on a similar voyage the following year and discovered a sea cucumber new to science, which he named ''Elpidia glacialis''. He was inducted into the Royal Swedish Academy of Sciences in 1884. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psychropotes Monstrosa
''Psychropotes'' is a genus of sea cucumbers in the family Psychropotidae. The members of this genus possess the ability to swim, although this is only facultative. Description As adults, species of ''Psychropotes'' are roughly cylindrical in shape and red to violet in colour. They have a sail-like appendage which can be used for swimming during the larval stage, but is no longer needed when it is fully grown. Larvae of ''Psychropotes'' species are benthopelagic and swim around using the aforementioned appendage, however researchers are still trying to understand its use when the holothurian is fully grown. Larvae are transparent and can grow to around 2 cm long. Species The following species are recognised in the genus ''Psychropotes'': * '' Psychropotes belyaevi'' Hansen, 1975 * '' Psychropotes depressa'' (Théel, 1882) * '' Psychropotes dubiosa'' Ludwig, 1893 * '' Psychropotes dyscrita'' (Clark, 1920) * ''Psychropotes fuscopurpurea'' Théel, 1882 * ''Psychropotes hyalinu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holothuroidea Genera
Sea cucumbers are echinoderms from the class Holothuroidea (). They are marine animals with a leathery skin and an elongated body containing a single, branched gonad. Sea cucumbers are found on the sea floor worldwide. The number of holothurian () species worldwide is about 1,717, with the greatest number being in the Asia-Pacific region. Many of these are gathered for human consumption and some species are cultivated in aquaculture systems. The harvested product is variously referred to as '' trepang'', ''namako'', ''bêche-de-mer'', or ''balate''. Sea cucumbers serve a useful role in the marine ecosystem as they help recycle nutrients, breaking down detritus and other organic matter, after which bacteria can continue the decomposition process. Like all echinoderms, sea cucumbers have an endoskeleton just below the skin, calcified structures that are usually reduced to isolated microscopic ossicles (or sclerietes) joined by connective tissue. In some species these can so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psychropotes Xenochromata
''Psychropotes'' is a genus of sea cucumbers in the family Psychropotidae. The members of this genus possess the ability to swim, although this is only facultative. Description As adults, species of ''Psychropotes'' are roughly cylindrical in shape and red to violet in colour. They have a sail-like appendage which can be used for swimming during the larval stage, but is no longer needed when it is fully grown. Larvae of ''Psychropotes'' species are benthopelagic and swim around using the aforementioned appendage, however researchers are still trying to understand its use when the holothurian is fully grown. Larvae are transparent and can grow to around 2 cm long. Species The following species are recognised in the genus ''Psychropotes'': * '' Psychropotes belyaevi'' Hansen, 1975 * '' Psychropotes depressa'' (Théel, 1882) * '' Psychropotes dubiosa'' Ludwig, 1893 * '' Psychropotes dyscrita'' (Clark, 1920) * ''Psychropotes fuscopurpurea'' Théel, 1882 * ''Psychropotes hyalinu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psychropotes Semperiana
''Psychropotes semperiana'' is a species of sea cucumber in the family Psychropotidae Psychropotidae is a family of deep-sea swimming sea cucumbers. The geographic range of some psychropotids is very extensive at abyssal depths, whereas other species are found within more restricted ranges.P. A. Tyler & D. S. M. Billett (1988) Th .... References Psychropotidae Animals described in 1882 Taxa named by Johan Hjalmar Théel {{Holothuroidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psychropotes Scotiae
''Psychropotes'' is a genus of sea cucumbers in the family Psychropotidae. The members of this genus possess the ability to swim, although this is only facultative. Description As adults, species of ''Psychropotes'' are roughly cylindrical in shape and red to violet in colour. They have a sail-like appendage which can be used for swimming during the larval stage, but is no longer needed when it is fully grown. Larvae of ''Psychropotes'' species are benthopelagic and swim around using the aforementioned appendage, however researchers are still trying to understand its use when the holothurian is fully grown. Larvae are transparent and can grow to around 2 cm long. Species The following species are recognised in the genus ''Psychropotes'': * '' Psychropotes belyaevi'' Hansen, 1975 * '' Psychropotes depressa'' (Théel, 1882) * '' Psychropotes dubiosa'' Ludwig, 1893 * '' Psychropotes dyscrita'' (Clark, 1920) * ''Psychropotes fuscopurpurea'' Théel, 1882 * ''Psychropotes hyalinu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
