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Neolithodes
''Neolithodes'' is a genus of king crabs in the subfamily Lithodinae. They are found in all major oceans, both in high and low latitudes. Although there are records from water as shallow as in cold regions, most records are much deeper, typically , with the deepest confirmed at . They are fairly large to large crabs that typically are reddish in color and spiny, although the size of these spines varies depending on species (from long in species like ''Neolithodes grimaldii, N. grimaldii'' to very short in species like ''Neolithodes flindersi, N. flindersi'', and tending to be more pronounced in small than in large individuals). Interactions with other species Various Sessility (motility), sessile organisms such as barnacles are sometimes attached to their carapace and legs, and small commensal amphipods may live in their carapace. They are occasionally the victims of parasitic snailfish of the genus ''Careproctus'', which lay their egg mass in the gill chamber of the crab, for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neolithodes Grimaldii
''Neolithodes grimaldii'', the porcupine crab, is a species of king crab. It is found in cold, deep waters in the North Atlantic, often caught as bycatch in fisheries for Greenland halibut (''Reinhardtius hippoglossoides''). As suggested by its common name, the carapace and legs are covered in long spines. Description The porcupine crab is dark red in colour. It is covered in spines, which are long and robust in large adults and very long and thin in juveniles and medium-sized individuals. The rest of the surface is mostly smooth. Its prominent rostrum (anatomy), rostrum at the front consists of a long basal spine and two well-developed dorsal spines to either side. Its carapace length up to and can weigh as much as . In healthy adults, average carapace length is about in females and about in males; however, they are often Parasitism, parasitised by the sterilising barnacle ''Briarosaccus callosus'' (family Peltogastridae), which causes both sexes to grow up to be significantl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Davidson Seamount
Davidson Seamount is a seamount ( underwater volcano) located off the coast of Central California, southwest of Monterey and west of San Simeon. At long and wide, it is one of the largest known seamounts in the world. From base to crest, the seamount is tall, yet its summit is still below the sea surface. The seamount is biologically diverse, with 237 species and 27 types of deep-sea coral having been identified. Discovered during the mapping of California's coast in 1933, Davidson Seamount is named after geographer George Davidson of the United States Coast and Geodetic Survey. Studied only sparsely for decades, NOAA expeditions to the seamount in 2002 and 2006 cast light upon its unique deep-sea coral ecosystem. Davidson Seamount is populated by a dense population of large, ancient corals, some over 100 years old. The data gathered during the studies led to the Davidson Seamount being added to the Monterey Bay National Marine Sanctuary in 2008. Geology A seamount ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of Crustacean Biology
The ''Journal of Crustacean Biology'' is a quarterly peer-reviewed scientific journal in the field of carcinology (crustacean research). It is published by The Crustacean Society and Oxford University Press (formerly by Brill Publishers and Allen Press), and since 2015 the editor-in-chief has been Peter Castro. According to the ''Journal Citation Reports'', its 2016 impact factor is 1.064. The journal has a mandatory publication fee of US$ 115 per printed page for non-members of the SocietyJournal of Crustacean BiologyInstructions for Authors/ref> and an optional open access Open access (OA) is a set of principles and a range of practices through which nominally copyrightable publications are delivered to readers free of access charges or other barriers. With open access strictly defined (according to the 2001 de ... fee of $1830 minimum. References Further reading * * External links Carcinology journals Academic journals established in 1981 English-langua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sidney Irving Smith
Sidney Irving Smith (February 18, 1843, in Norway, Maine – May 6, 1926, in New Haven, Connecticut) was an American zoologist. Private life Sidney Smith was the son of Elliot Smith and Lavinia Barton. His brother in law was Addison Emery Verrill. Smith married Eugenia Pocahontas Barber in New Haven, Connecticut, on June 29, 1882. The couple had no children, and Eugenia died on March 14, 1916. Smith suffered from hereditary glaucoma, rendering him partially sighted from 1906, and completely blind some years before his death. He died on May 6, 1926, of throat cancer. Education and career In his youth, Sidney Irving Smith became expert on the fauna around his home town, and an expert at making collections, particularly of insects. He studied at the Sheffield Scientific School of Yale University, and received his Ph.B. in 1867. Yale University conferred upon him the honorary degree of M.A. in 1887. He stayed on at Yale, initially as an assistant, but from 1875 as the first p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neolithodes Agassizii
''Neolithodes agassizii'' is a species of king crab native to the Western Atlantic which lives depths of . Description ''Neolithodes agassizii'' has a pyrifrom carapace; the largest adult specimen when it was described, a female, had a carapace measuring in postrostral length and in width. Whereas its carapace is about as wide as it is long in adults, this is closer to in juveniles. The spines around the margins of its carapace are slightly larger than those on its dorsal surface, and between these marginal spines are tubercles. Its rostrum is very short. Its chelipeds feature little spination and are similar in length, but the right is stouter than the left. Its rear walking legs – the longest pair – are nearly three times as long as the carapace width, and all of its dactyli are slightly curved and armed with small, sharp spines. Its underside features a symmetrical abdomen in juveniles, but in adults, there is a noticeable asymmetry in the third, fourth, and fift ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil
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''. Though the fossil record is incomplete, numerous studies have demonstrated that there is enough information available to give a good understanding of the pattern of diversification of life on Earth. In addition, the record can predict and fill gaps such as the discovery of '' Tiktaalik'' in the arctic of Canada. Paleontology includes the study of fossils: their age, method of formation, and evolutionary significance. Specimens are sometimes considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years to 4.1 billion years old. Early edition, published online before prin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latin
Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area around Rome, Italy. Through the expansion of the Roman Republic, it became the dominant language in the Italian Peninsula and subsequently throughout the Roman Empire. It has greatly influenced many languages, Latin influence in English, including English, having contributed List of Latin words with English derivatives, many words to the English lexicon, particularly after the Christianity in Anglo-Saxon England, Christianization of the Anglo-Saxons and the Norman Conquest. Latin Root (linguistics), roots appear frequently in the technical vocabulary used by fields such as theology, List of Latin and Greek words commonly used in systematic names, the sciences, List of medical roots, suffixes and prefixes, medicine, and List of Latin legal terms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithodes
''Lithodes'' is a genus of king crabs. Today there are about 30 recognized species, but others formerly included in this genus have been moved to ''Neolithodes'' and ''Paralomis''. They are found in oceans around the world, ranging from shallow to deep waters, but mostly at depths of . They are restricted to relatively cold waters, meaning that they only occur at high depths at low latitudes, but some species also shallower at high latitudes. They are medium to large crabs, and some species are or were targeted by fisheries.Emmerson, W.D. (2016). A Guide to, and Checklist for, the Decapoda of Namibia, South Africa, vol. 2. Cambridge Scholar Publishing. Species ''Lithodes'' contains the following species: References External links * * King crabs Decapod genera {{Anomura-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Greek
Ancient Greek (, ; ) includes the forms of the Greek language used in ancient Greece and the classical antiquity, ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Greek Dark Ages, Dark Ages (), the Archaic Greece, Archaic or Homeric Greek, Homeric period (), and the Classical Greece, Classical period (). Ancient Greek was the language of Homer and of fifth-century Athens, fifth-century Athenian historians, playwrights, and Ancient Greek philosophy, philosophers. It has contributed many words to English vocabulary and has been a standard subject of study in educational institutions of the Western world since the Renaissance. This article primarily contains information about the Homeric Greek, Epic and Classical periods of the language, which are the best-attested periods and considered most typical of Ancient Greek. From the Hellenistic period (), Ancient Greek was followed by Koine Greek, which is regar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scotoplanes
''Scotoplanes'' is a genus of deep-sea sea cucumbers of the family Elpidiidae. Its species are commonly known as sea pigs. Locomotion Members of the Elpidiidae have particularly enlarged tube "feet" that have taken on a leg-like appearance, using water cavities within the skin to inflate and deflate thereby causing the appendages to move. These appendages are different from the normal tube feet of the broader order of Elasipodida due the replacement of ampullae with dermal cavities to account for the larger size of the Elpidiidae tube feet. ''Scotoplanes'' move through the top layer of seafloor sediment and disrupt both the surface and the resident infauna as they feed. This type of movement is thought to be an adaptation to life on the soft floor of the deep sea. These creatures, however, can swim when disturbed. Some species of ''Scotoplanes'' are benthopelagic and spend plenty of time in the water column. A frontal lobe as well as two anal lobes propel the sea pig through t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gill
A gill () is a respiration organ, respiratory organ that many aquatic ecosystem, aquatic organisms use to extract dissolved oxygen from water and to excrete carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are kept moist. The microscopic structure of a gill presents a large surface area to the external environment. Branchia (: branchiae) is the zoologists' name for gills (from Ancient Greek ). With the exception of some aquatic insects, the filaments and lamella (surface anatomy), lamellae (folds) contain blood or Coelom#Coelomic fluid, coelomic fluid, from which gases are exchanged through the thin walls. The blood carries oxygen to other parts of the body. Carbon dioxide passes from the blood through the thin gill tissue into the water. Gills or gill-like organs, located in different parts of the body, are found in various groups of aquatic animals, including Mollusc, molluscs, crustaceans, insects, fish, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
