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Gandalfus
''Gandalfus'' is a genus of crabs belonging to the family Bythograeidae. The species of this genus are found in Eastern Asia and Australia. Species: *''Gandalfus puia'' *''Gandalfus yunohana ''Gandalfus yunohana'' is a species of blind crab found on hydrothermal vents on the eastern edge of the Philippine Sea Plate south of Japan. It lives at shallower depths than other members of the family Bythograeidae, at . Because no light penetr ...'' References {{Taxonbar, from=Q18594323 Crabs Decapod genera Organisms named after Tolkien and his works ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gandalfus Puia
''Gandalfus puia'' is the only known New Zealand species of crab in the family Bythograeidae, commonly known as the blind vent crabs. Like other blind vent crabs, it only lives in hydrothermal vent waters. This species was first described in 2007 after specimens were collected from the undersea volcanic ridge near the Kermadec Islands. Description The current description for ''Gandalfus puia'' is based on six specimens collected in 2005. This crab is characterised by a flat, elliptical carapace that is wider than it is long. Both males and females have dimorphic chelipeds: the right cheliped is stouter than the left, suggesting that it is used for crushing while the left is used for cutting. Adults have vestigial eyes, with immovable eyestalks and unpigmented corneas. Reduced eyes are typical for the family Bythograeidae family, probably from the ancestor of this group colonising the dark deep ocean. Adults are pale yellow, darker brown along their legs and setae, but because ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gandalfus Yunohana
''Gandalfus yunohana'' is a species of blind crab found on hydrothermal vents on the eastern edge of the Philippine Sea Plate south of Japan. It lives at shallower depths than other members of the family Bythograeidae, at . Because no light penetrates to such depths, the eyes of ''G. yunohana'' are immobile and unpigmented. Males have a carapace up to across, while females are larger, at . It was originally described as ''Austinograea yunohana'' in 2000, but was transferred in 2007 by Colin McLay to his new genus, '' Gandalfus'', named after the character Gandalf from ''The Lord of the Rings ''The Lord of the Rings'' is an epic high-fantasy novel by English author and scholar J. R. R. Tolkien. Set in Middle-earth, intended to be Earth at some time in the distant past, the story began as a sequel to Tolkien's 1937 children's boo ...''. References External links * Crabs Animals living on hydrothermal vents Crustaceans described in 2000 Organisms named after Tolki ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bythograeidae
The Bythograeidae are a small family of blind crabs which live around hydrothermal vents. The family contains 16 species in six genera. Their relationships to other crabs are unclear. They are believed to eat bacteria and other vent organisms. Bythograeidae are a monophyletic, sister taxon of the superfamily Xanthoidea which split to inhabit hydrothermal vents around the Eocene. Origins Due to the lack of fossils found in this group the exact date of origin of Bythograeidae remains unknown. It has been suggested that bythograeidae do not originate from an ancient hydrothermal bathyal groups but instead arose from brachyuran stock that was adapted to shallow hydrothermal vents and then transitioned to deep sea hydrothermal vents around the Eocene. Distribution Bythograeidae are almost exclusively found in the East Pacific Rise. Some exceptions include '' Austinograea alayseae'', '' Austinograea williamsi'' and the genus '' Gandalfus'' which are found in the western Pacific a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crab
Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" (abdomen) ( el, βραχύς , translit=brachys = short, / = tail), usually hidden entirely under the thorax. They live in all the world's oceans, in freshwater, and on land, are generally covered with a thick exoskeleton, and have a single pair of pincers. They first appeared during the Jurassic Period. Description Crabs are generally covered with a thick exoskeleton, composed primarily of highly mineralized chitin, and armed with a pair of chelae (claws). Crabs vary in size from the pea crab, a few millimeters wide, to the Japanese spider crab, with a leg span up to . Several other groups of crustaceans with similar appearances – such as king crabs and porcelain crabs – are not true crabs, but have evolved features similar to true crabs through a process known as carcinisation. Environment Crabs are found in all of the world's oceans, as well as in fresh w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crabs
Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" (abdomen) ( el, βραχύς , translit=brachys = short, / = tail), usually hidden entirely under the thorax. They live in all the world's oceans, in freshwater, and on land, are generally covered with a thick exoskeleton, and have a single pair of pincers. They first appeared during the Jurassic Period. Description Crabs are generally covered with a thick exoskeleton, composed primarily of highly mineralized chitin, and armed with a pair of chelae (claws). Crabs vary in size from the pea crab, a few millimeters wide, to the Japanese spider crab, with a leg span up to . Several other groups of crustaceans with similar appearances – such as king crabs and porcelain crabs – are not true crabs, but have evolved features similar to true crabs through a process known as carcinisation. Environment Crabs are found in all of the world's oceans, as well as in fresh w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Decapod Genera
Decapod may refer to: Biology * Decapoda, an order of crustaceans such as lobsters and crabs * Decapodiformes, ten-limbed cephalopods with eight arms and two tentacles Trains * 2-10-0, a steam locomotive wheel arrangement known as "Decapod" in the United States * 0-10-0, a steam locomotive wheel arrangement known as "Decapod" in the United Kingdom * GER Decapod, an experimental 0-10-0 steam locomotive built by the Great Eastern Railway Fiction * Decapodians, decapod-like fictional characters in the cartoon series ''Futurama'' * "The Decapod", the third episode of the second series of the 1960s British television series ''The Avengers'' * In the 2016 Disney film Moana, a crab named Tamatoa refers to himself as a decapod during the singing of the song "Shiny". See also * Monopod * Tripod * Tetrapod * Hexapod (other) * Octopod An octopus ( : octopuses or octopodes, see below for variants) is a soft-bodied, eight- limbed mollusc of the order Octopoda (, ). Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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