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Xantho Granulicarpus
''Xantho'' is a genus of crabs in the family Xanthidae, containing five extant species, all restricted to the north-east Atlantic Ocean and Mediterranean Sea, although '' Xantho granulicarpis'' is not universally recognised as a separate species from ''Xantho hydrophilus'': *'' Xantho granulicarpus'' Forest, 1953 *''Xantho hydrophilus'' (Herbst, 1790) *'' Xantho pilipes'' A. Milne-Edwards, 1867 *''Xantho poressa ''Xantho poressa'', the jaguar round crab, is a species of crab from the eastern Atlantic Ocean. It is one of four species in the genus ''Xantho''. Description The juveniles of ''X. poressa'' are cryptically coloured as camouflage among the epib ...'' (Olivi, 1792) *'' Xantho sexdentatus'' (Miers, 1881) Five species are known from the fossil record, including one species that is still extant. References Xanthoidea Crustaceans of the Atlantic Ocean Miocene crustaceans Pliocene crustaceans Pleistocene crustaceans {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xantho Poressa
''Xantho poressa'', the jaguar round crab, is a species of crab from the eastern Atlantic Ocean. It is one of four species in the genus ''Xantho''. Description The juveniles of ''X. poressa'' are cryptically coloured as camouflage among the epibionts on the leaves of ''Posidonia'' with a variable carapace colour, which can be yellowish, reddish, brown, or dark grey with patches of another colour, usually white. The pereiopods are usually banded with dark brown or black bands alternating with white or translucent stripes or spots, although the fifth pereiopod is brighter and often unmarked. The adults are uniformly dark grey in colour and they leave the seagrass beds for more open, rocky substrates. Distribution ''X. poressa'' is distributed throughout the Black Sea and the Mediterranean Sea and into the warmer parts of the north eastern Atlantic to the Canary Islands. Biology The larvae of ''X. poressa'' go through four zoeal and one megalopal stages, which are typical of most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xantho Granulicarpis
''Xantho'' is a genus of crabs in the family Xanthidae, containing five extant species, all restricted to the north-east Atlantic Ocean and Mediterranean Sea, although '' Xantho granulicarpis'' is not universally recognised as a separate species from ''Xantho hydrophilus'': *''Xantho granulicarpus'' Forest, 1953 *''Xantho hydrophilus'' (Herbst, 1790) *''Xantho pilipes'' A. Milne-Edwards, 1867 *''Xantho poressa'' (Olivi, 1792) *''Xantho sexdentatus ''Xantho'' is a genus of crabs in the family Xanthidae, containing five extant species, all restricted to the north-east Atlantic Ocean and Mediterranean Sea, although '' Xantho granulicarpis'' is not universally recognised as a separate species ...'' (Miers, 1881) Five species are known from the fossil record, including one species that is still extant. References Xanthoidea Crustaceans of the Atlantic Ocean Miocene crustaceans Pliocene crustaceans Pleistocene crustaceans {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene Crustaceans
The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" because it has 18% fewer modern marine invertebrates than the Pliocene has. The Miocene is preceded by the Oligocene and is followed by the Pliocene. As Earth went from the Oligocene through the Miocene and into the Pliocene, the climate slowly cooled towards a series of ice ages. The Miocene boundaries are not marked by a single distinct global event but consist rather of regionally defined boundaries between the warmer Oligocene and the cooler Pliocene Epoch. During the Early Miocene, the Arabian Peninsula collided with Eurasia, severing the connection between the Mediterranean and Indian Ocean, and allowing a faunal interchange to occur between Eurasia and Africa, including the dispersal of proboscideans into Eurasia. During the late ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crustaceans Of The Atlantic Ocean
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group can be treated as a subphylum under the clade Mandibulata. It is now well accepted that the hexapods emerged deep in the Crustacean group, with the completed group referred to as Pancrustacea. Some crustaceans (Remipedia, Cephalocarida, Branchiopoda) are more closely related to insects and the other hexapods than they are to certain other crustaceans. The 67,000 described species range in size from '' Stygotantulus stocki'' at , to the Japanese spider crab with a leg span of up to and a mass of . Like other arthropods, crustaceans have an exoskeleton, which they moult to grow. They are distinguished from other groups of arthropods, such as insects, myriapods and chelicerates, by the possession of biramous (two-parted) limbs, and by their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xanthoidea
Xanthoidea is a superfamily of crabs, comprising the three families Xanthidae, Panopeidae and Pseudorhombilidae. Formerly, a number of other families were included in Xanthoidea, but many of these have since been removed to other superfamilies. These include Carpilioidea, Eriphioidea, Hexapodoidea, Pilumnoidea and Trapezioidea. Even in this reduced state, Xanthoidea remains one of the most species-rich superfamilies of crabs. Families The World Register of Marine Species lists the following families: *Panopeidae Ortmann, 1893 * Pseudorhombilidae Alcock, 1900 *Xanthidae Xanthidae is a family of crabs known as gorilla crabs, mud crabs, pebble crabs or rubble crabs. Xanthid crabs are often brightly coloured and are highly poisonous, containing toxins which are not destroyed by cooking and for which no antidote is ... MacLeay, 1838 References External links * Crabs Arthropod superfamilies {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil Record
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. Early edition, published online before print. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the absolu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xantho Sexdentatus
''Xantho'' is a genus of crabs in the family Xanthidae, containing five extant species, all restricted to the north-east Atlantic Ocean and Mediterranean Sea, although '' Xantho granulicarpis'' is not universally recognised as a separate species from ''Xantho hydrophilus'': *''Xantho granulicarpus'' Forest, 1953 *''Xantho hydrophilus'' (Herbst, 1790) *'' Xantho pilipes'' A. Milne-Edwards, 1867 *''Xantho poressa ''Xantho poressa'', the jaguar round crab, is a species of crab from the eastern Atlantic Ocean. It is one of four species in the genus ''Xantho''. Description The juveniles of ''X. poressa'' are cryptically coloured as camouflage among the epib ...'' (Olivi, 1792) *'' Xantho sexdentatus'' (Miers, 1881) Five species are known from the fossil record, including one species that is still extant. References Xanthoidea Crustaceans of the Atlantic Ocean Miocene crustaceans Pliocene crustaceans Pleistocene crustaceans {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xantho Pilipes
''Xantho'' is a genus of crabs in the family Xanthidae, containing five extant species, all restricted to the north-east Atlantic Ocean and Mediterranean Sea, although '' Xantho granulicarpis'' is not universally recognised as a separate species from ''Xantho hydrophilus'': *''Xantho granulicarpus'' Forest, 1953 *''Xantho hydrophilus'' (Herbst, 1790) *'' Xantho pilipes'' A. Milne-Edwards, 1867 *''Xantho poressa'' (Olivi, 1792) *''Xantho sexdentatus ''Xantho'' is a genus of crabs in the family Xanthidae, containing five extant species, all restricted to the north-east Atlantic Ocean and Mediterranean Sea, although '' Xantho granulicarpis'' is not universally recognised as a separate species ...'' (Miers, 1881) Five species are known from the fossil record, including one species that is still extant. References Xanthoidea Crustaceans of the Atlantic Ocean Miocene crustaceans Pliocene crustaceans Pleistocene crustaceans {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xantho Granulicarpus
''Xantho'' is a genus of crabs in the family Xanthidae, containing five extant species, all restricted to the north-east Atlantic Ocean and Mediterranean Sea, although '' Xantho granulicarpis'' is not universally recognised as a separate species from ''Xantho hydrophilus'': *'' Xantho granulicarpus'' Forest, 1953 *''Xantho hydrophilus'' (Herbst, 1790) *'' Xantho pilipes'' A. Milne-Edwards, 1867 *''Xantho poressa ''Xantho poressa'', the jaguar round crab, is a species of crab from the eastern Atlantic Ocean. It is one of four species in the genus ''Xantho''. Description The juveniles of ''X. poressa'' are cryptically coloured as camouflage among the epib ...'' (Olivi, 1792) *'' Xantho sexdentatus'' (Miers, 1881) Five species are known from the fossil record, including one species that is still extant. References Xanthoidea Crustaceans of the Atlantic Ocean Miocene crustaceans Pliocene crustaceans Pleistocene crustaceans {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine Biology (journal)
''Marine Biology'' is a peer-reviewed scientific journal covering research on all aspects of marine biology. The journal was established in 1967 and is published monthly by Springer Science+Business Media. The editor-in-chief is Ulrich Sommer ( Helmholtz Centre for Ocean Research). According to the ''Journal Citation Reports'', the journal has a 2014 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as i ... of 2.391. References External links * Biology journals Springer Science+Business Media academic journals English-language journals Publications established in 1967 Marine biology Monthly journals Hybrid open access journals {{biology-journal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mediterranean Sea
The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Western and Southern Europe and Anatolia, on the south by North Africa, and on the east by the Levant. The Sea has played a central role in the history of Western civilization. Geological evidence indicates that around 5.9 million years ago, the Mediterranean was cut off from the Atlantic and was partly or completely desiccated over a period of some 600,000 years during the Messinian salinity crisis before being refilled by the Zanclean flood about 5.3 million years ago. The Mediterranean Sea covers an area of about , representing 0.7% of the global ocean surface, but its connection to the Atlantic via the Strait of Gibraltar—the narrow strait that connects the Atlantic Ocean to the Mediterranean Sea and separates the Iberian Peninsula in Europe from Morocco in Africa—is only wide. The Mediterranean Sea e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Elford Leach
William Elford Leach Royal Society, FRS (2 February 1791 – 25 August 1836) was an English zoologist and marine biologist. Life and work Elford Leach was born at Hoe Gate, Plymouth, the son of an attorney. At the age of twelve he began a medical apprenticeship at the Royal Devon and Exeter Hospital, Devonshire and Exeter Hospital, studying anatomy and chemistry. By this time he was already collecting marine animals from Plymouth Sound and along the Devon coast. At seventeen he began studying medicine at St Bartholomew's Hospital in London, finishing his training at the University of Edinburgh before graduating Doctor of Medicine, MD from the University of St Andrews (where he had never studied). From 1813 Leach concentrated on his zoological interests and was employed as an 'Assistant Librarian' (what would later be called Assistant Keeper) in the Natural History Museum, London, Natural History Department of the British Museum, where he had responsibility for the zoological ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
