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Gecarcinus
''Gecarcinus'' is the type genus of the land crab family Gecarcinidae. They are found in warmer coastal regions of the Americas, including islands in the Caribbean. Four species from oceanic islands were formerly included in ''Gecarcinus'' as the subgenus ''Johngarthia'', but are now treated as a separate genus, ''Johngarthia''. While all members of this genus are largely terrestrial, they have to return to the ocean to breed (the larvae A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. The ... are released into the sea). They are often colourful, with reddish, orange, purple, yellowish, whitish, or blackish being the dominating hues. This has resulted in some species, notably ''G. quadratus'' and ''G. lateralis'', gaining a level of popularity in the pet trade. Species References Fu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gecarcinus Nobilii Live B
''Gecarcinus'' is the type genus of the land crab family Gecarcinidae. They are found in warmer coastal regions of the Americas, including islands in the Caribbean. Four species from oceanic islands were formerly included in ''Gecarcinus'' as the subgenus ''Johngarthia'', but are now treated as a separate genus, ''Johngarthia''. While all members of this genus are largely terrestrial, they have to return to the ocean to breed (the larvae A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. The ... are released into the sea). They are often colourful, with reddish, orange, purple, yellowish, whitish, or blackish being the dominating hues. This has resulted in some species, notably ''G. quadratus'' and ''G. lateralis'', gaining a level of popularity in the pet trade. Species References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gecarcinus Lateralis 2
''Gecarcinus'' is the type genus of the land crab family Gecarcinidae. They are found in warmer coastal regions of the Americas, including islands in the Caribbean. Four species from oceanic islands were formerly included in ''Gecarcinus'' as the subgenus ''Johngarthia'', but are now treated as a separate genus, ''Johngarthia''. While all members of this genus are largely terrestrial, they have to return to the ocean to breed (the larvae A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. The ... are released into the sea). They are often colourful, with reddish, orange, purple, yellowish, whitish, or blackish being the dominating hues. This has resulted in some species, notably ''G. quadratus'' and ''G. lateralis'', gaining a level of popularity in the pet trade. Species References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gecarcinus Ruricola
''Gecarcinus ruricola'' is a species of terrestrial crab. It is the most terrestrial of the Caribbean land crabs, and is found from western Cuba across the Antilles as far east as Barbados. Common names for ''G. ruricola'' include the purple land crab, black land crab, red land crab, and zombie crab. Description Four colour morphs exist within the species - black, red, yellow, and green. The carapace of ''G. ruricola'' grows in width at a rate of about per year, with the crabs reaching maturity after 5 years, and living for up to 10 years in total. ''G. ruricola'' crabs have a number of adaptations to terrestrial life, mostly regarding water conservation. They are nocturnal, to prevent the hot sun from drying them out. They also have a "nephritic pad", onto which urine is released, to be cleaned by microbes before the water is then reabsorbed. Distribution ''G. ruricola'' is found across much of the Caribbean, from Cuba and the Bahamas in the west through the Antilles to Barba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gecarcinus Quadratus
''Gecarcinus quadratus'', known as the red land crab, whitespot crab, Halloween crab, moon crab, Halloween moon crab, mouthless crab, or harlequin land crab, is a colourful land crab from the family Gecarcinidae. Distribution ''Gecarcinus quadratus'' is found in mangrove, sand dunes, and rainforests along the Pacific coast from Mexico south to Panama. Previously it has also been reported from the Pacific coast of northwestern South America, but in 2014 this population was recognized as a separate species, '' G. nobili''. The taxonomy in relation to the Atlantic '' G. lateralis'' is disputed, with many considering ''G. quadratus'' and ''G. lateralis'' to be conspecific. Description The carapace of ''G. quadratus'' may reach a length of . It has a pair of largely purple claws, red-orange legs, and an almost entirely black carapace with a pair of yellow, orange, or reddish spots behind the eyes, and an additional pair of whitish spots on the central-lower carapace. Behaviour Thi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gecarcinus Lateralis
''Gecarcinus lateralis'', also known by the common names blackback land crab, Bermuda land crab, red land crab (leading to easy confusion with ''Gecarcoidea natalis'') and moon crab (leading to easy confusion with '' G. quadratus'' and '' Cardisoma spp.''), is a colourful crab from the family Gecarcinidae. Distribution It is found along the Atlantic coast from South Padre Island, Texas south to Macuto, Venezuela. It also inhabits the Florida Keys and the islands of the Caribbean. Relatives The taxonomy in relations to the Pacific ''Gecarcinus quadratus'' is disputed, with many considering it and ''G. lateralis'' to be conspecific. Another closely related species, ''Gecarcinus ruricola'', occurs together with ''G. lateralis'' in the tropical western Atlantic, but its carapace is typically almost entirely blackish, dark maroon, purplish or yellowish. Description As suggested by the name blackback land crab, it has a large blackish spot, which, although the exact shape is variable ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gecarcinus Nobilii
''Gecarcinus nobili'' is a species of land crab closely related to the halloween moon crab (''G. quadratus''). It was described in 2014. It is from the Neotropical Pacific coast of northwestern South America. Range and habitat ''G. nobilii'' is found along the South American Pacific coast, from Colombia to Peru. It inhabits the mangrove, tropical rainforest Tropical rainforests are rainforests that occur in areas of tropical rainforest climate in which there is no dry season – all months have an average precipitation of at least 60 mm – and may also be referred to as ''lowland equatori ... and other habitats that lines the coast. Behavior It behaves almost indistinguishably from its relative '' G. quadratus''. References * Grapsoidea Crustaceans described in 2014 {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johngarthia
''Johngarthia'' is a genus of crabs in the land crab family Gecarcinidae, formerly included in the genus '' Gecarcinus'', and containing these species: The genus bears the name of John S. Garth, a 20th century naturalist who specialized in crabs and other arthropods.Zsa Zsa Gershick,Biologist, Explorer John Garth Dies, ''USC USC most often refers to: * University of South Carolina, a public research university ** University of South Carolina System, the main university and its satellite campuses **South Carolina Gamecocks, the school athletic program * University of ... News'', Jan. 10, 1994. Notes References Further reading * Robert Perger "A New Species of ''Johngarthia'' from Clipperton and Socorro Islands in the Eastern Pacific Ocean (Crustacea: Decapoda: Gecarcinidae)," ''Pacific Science'' 73(2), (12 April 2019). https://doi.org/10.2984/73.2.9 Grapsoidea Terrestrial crustaceans {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gecarcinidae
The Gecarcinidae, the land crabs, are a family of true crabs that are adapted for terrestrial existence. Similar to all other crabs, land crabs possess a series of gills. In addition, the part of the carapace covering the gills is inflated and equipped with blood vessels. These organs extract oxygen from the air, analogous to the vertebrate lungs. Adult land crabs are terrestrial, but visit the sea periodically, where they breed and their larvae develop. Land crabs are tropical omnivores which sometimes cause considerable damage to crops. Most land crabs have one of their claws larger than the other. The family contains these genera: * ''Cardisoma'' * '' Discoplax'' * '' Epigrapsus'' * '' Gecarcinus'' * '' Gecarcoidea'' * '' Johngarthia'' * ''Tuerkayana'' See also *Sesarmidae, another family of terrestrial crabs *Coenobitidae The Coenobitidae are the family of terrestrial hermit crabs, widely known for their land-living habits as adults. They are found in coastal tropical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Land Crab
A number of lineages of crabs have evolved to live predominantly on land. Examples of terrestrial crabs are found in the families Gecarcinidae and Gecarcinucidae, as well as in selected genera from other families, such as ''Sesarma'', although the term "land crab" is often used to mean solely the family Gecarcinidae. Terrestriality and migration No clear distinction is made between "terrestrial", "semiterrestrial", and "aquatic" crabs. Rather, a continuum of terrestriality is displayed among the true crabs, although most land-adapted crabs must still return to water to release their eggs. Some species of terrestrial crabs can be found many kilometres from the sea, but have to complete annual migrations to the sea. For example, following the Indian Ocean monsoon, the Christmas Island red crab (''Gecarcoidea natalis'') migrates ', forming a "living carpet" of crabs. The crabs can travel up to in a day, and up to in total. Only a few land crabs, including certain '' Geosesar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crab On Panamanian Beach 01
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 fres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crustacean Larvae
Crustaceans may pass through a number of larval and immature stages between hatching from their eggs and reaching their adult form. Each of the stages is separated by a moult, in which the hard exoskeleton is shed to allow the animal to grow. The larvae of crustaceans often bear little resemblance to the adult, and there are still cases where it is not known what larvae will grow into what adults. This is especially true of crustaceans which live as benthic adults (on the sea bed), more-so than where the larvae are planktonic, and thereby easily caught. Many crustacean larvae were not immediately recognised as larvae when they were discovered, and were described as new genera and species. The names of these genera have become generalised to cover specific larval stages across wide groups of crustaceans, such as ''zoea'' and ''nauplius''. Other terms described forms which are only found in particular groups, such as the ''glaucothoe'' of hermit crabs, or the ''phyllosoma'' of slippe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red And Black Land Crab
Red is the color at the long wavelength end of the visible spectrum of light, next to orange and opposite violet. It has a dominant wavelength of approximately 625–740 nanometres. It is a primary color in the RGB color model and a secondary color (made from magenta and yellow) in the CMYK color model, and is the complementary color of cyan. Reds range from the brilliant yellow-tinged scarlet and vermillion to bluish-red crimson, and vary in shade from the pale red pink to the dark red burgundy. Red pigment made from ochre was one of the first colors used in prehistoric art. The Ancient Egyptians and Mayans colored their faces red in ceremonies; Roman generals had their bodies colored red to celebrate victories. It was also an important color in China, where it was used to color early pottery and later the gates and walls of palaces. In the Renaissance, the brilliant red costumes for the nobility and wealthy were dyed with kermes and cochineal. The 19th century brought ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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