|
Mictacea
Mictacea is a monotypic order of crustaceans. It was originally erected for three species of small shrimp-like animals of the deep sea and anchialine caves. They were placed in two families, the Mictocarididae and Hirsutiidae, but Hirsutiidae is now placed in order Bochusacea, leaving Mictacea with a single species, ''Mictocaris halope''. Description Mictaceans have a brood pouch (marsupium) and biramous thoracic limbs, but lack a carapace. They have eyestalks but "no functioning visual elements". History The existence of animals resembling the Mictacea had been predicted by Frederick Schram in the early 1980s. Two groups of scientists independently discovered the animals in 1985, and, once they learnt of each other's work, agreed to work together on the paper describing the new order. Species A single species is recognised: ; Mictocarididae Bowman & Iliffe, 1985 *''Mictocaris halope ''Mictocaris halope'' is the only species of cave crustacean in the monotypic genus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mictocaris Halope
''Mictocaris halope'' is the only species of cave crustacean in the monotypic genus ''Mictocaris''. It is placed in its own family, Mictocarididae, and is sometimes considered the only member of the order Mictacea. ''Mictocaris'' is endemic to anchialine caves in Bermuda, and grows up to long. Its biology is poorly known. Taxonomy ''Mictocaris halope'' is the only species in the genus ''Mictocaris'', and in the family Mictocarididae. When the family Hirsutiidae is treated as the separate order Bochusacea, ''Mictocaris halope'' is the only species that remains in the order Mictacea. Description ''Mictocaris'' is long and is reflective. It is native to four anchialine limestone caves in Bermuda: it was first discovered by divers in Crystal Cave, and then further populations were found in Green Bay Cave (South Harrington Sound Passage and North Shore Passage), Roadside Cave and Tucker's Town Cave. Ecology ''Mictocaris'' is rarely encountered because it lives only in deep w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mictocaris
''Mictocaris halope'' is the only species of cave crustacean in the monotypic genus ''Mictocaris''. It is placed in its own family, Mictocarididae, and is sometimes considered the only member of the order Mictacea. ''Mictocaris'' is endemic to anchialine caves in Bermuda, and grows up to long. Its biology is poorly known. Taxonomy ''Mictocaris halope'' is the only species in the genus ''Mictocaris'', and in the family Mictocarididae. When the family Hirsutiidae is treated as the separate order Bochusacea, ''Mictocaris halope'' is the only species that remains in the order Mictacea. Description ''Mictocaris'' is long and is reflective. It is native to four anchialine limestone caves in Bermuda: it was first discovered by divers in Crystal Cave, and then further populations were found in Green Bay Cave (South Harrington Sound Passage and North Shore Passage), Roadside Cave and Tucker's Town Cave. Ecology ''Mictocaris'' is rarely encountered because it lives only in deep wate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mictocarididae
''Mictocaris halope'' is the only species of cave crustacean in the monotypic genus ''Mictocaris''. It is placed in its own family, Mictocarididae, and is sometimes considered the only member of the order Mictacea. ''Mictocaris'' is endemic to anchialine caves in Bermuda, and grows up to long. Its biology is poorly known. Taxonomy ''Mictocaris halope'' is the only species in the genus ''Mictocaris'', and in the family Mictocarididae. When the family Hirsutiidae is treated as the separate order Bochusacea, ''Mictocaris halope'' is the only species that remains in the order Mictacea. Description ''Mictocaris'' is long and is reflective. It is native to four anchialine limestone caves in Bermuda: it was first discovered by divers in Crystal Cave, and then further populations were found in Green Bay Cave (South Harrington Sound Passage and North Shore Passage), Roadside Cave and Tucker's Town Cave. Ecology ''Mictocaris'' is rarely encountered because it lives only in deep wate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Elliot Bowman III
Thomas Elliot Bowman III (October 21, 1918 – August 10, 1995) was an American carcinologist best known for his studies of isopods and copepods. Bowman was born and grew up in Brooklyn, New York (state), New York. He graduated from Kent School in Kent, Connecticut in 1937 and Harvard College in 1941. During the World War II, Second World War, he spent four years in the United States Army, U.S. Army, gaining a degree in veterinary medicine from the University of Pennsylvania. Afterwards, he went to the University of California, Berkeley, where he gained a master's degree, and then worked at the Scripps Institution of Oceanography, where he gained a Doctor of Philosophy, Ph.D. (awarded by the University of California, Los Angeles). During his career, Bowman wrote 163 papers, using a style which has been likened to that of Ernest Hemingway and Albert Camus. As well as describing 116 new species (including 55 isopods, 28 copepods, one suctorian and one Chaetognatha, chaetognath), 16 ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bochusacea
Hirsutiidae is a family of crustaceans, classified either as a separate order, Bochusacea, or as part of a wider Mictacea. It comprises five species in three genera: *'' Hirsutia bathyalis'' Saunders, Hessler & Garner, 1985 *'' Hirsutia saundersetalia'' Just & Poore, 1988 *'' Thetispelecaris remex'' Gutu & Iliffe, 1998 *'' Thetispelecaris yurigako'' Ohtsuka, Hanamura & Kase, 2002 *'' Montucaris distincta'' Jaume, Boxshall & Bamber, 2006 See also *''Mictocaris ''Mictocaris halope'' is the only species of cave crustacean in the monotypic genus ''Mictocaris''. It is placed in its own family, Mictocarididae, and is sometimes considered the only member of the order Mictacea. ''Mictocaris'' is endemic to ...'' References Malacostraca Crustacean families Taxa described in 1985 {{Malacostraca-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hirsutiidae
Hirsutiidae is a family of crustacean 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 ...s, classified either as a separate order, Bochusacea, or as part of a wider Mictacea. It comprises five species in three genera: *'' Hirsutia bathyalis'' Saunders, Hessler & Garner, 1985 *'' Hirsutia saundersetalia'' Just & Poore, 1988 *'' Thetispelecaris remex'' Gutu & Iliffe, 1998 *'' Thetispelecaris yurigako'' Ohtsuka, Hanamura & Kase, 2002 *'' Montucaris distincta'' Jaume, Boxshall & Bamber, 2006 See also *'' Mictocaris'' References Malacostraca Crustacean families Taxa described in 1985 {{Malacostraca-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malacostraca
Malacostraca (from New Latin; ) is the largest of the six classes of crustaceans, containing about 40,000 living species, divided among 16 orders. Its members, the malacostracans, display a great diversity of body forms and include crabs, lobsters, crayfish, shrimp, krill, prawns, woodlice, amphipods, mantis shrimp, tongue-eating lice and many other less familiar animals. They are abundant in all marine environments and have colonised freshwater and terrestrial habitats. They are segmented animals, united by a common body plan comprising 20 body segments (rarely 21), and divided into a head, thorax, and abdomen. Etymology The name Malacostraca was coined by a French zoologist Pierre André Latreille in 1802. He was curator of the arthropod collection at the National Museum of Natural History in Paris. The name comes from the Greek roots (', meaning "soft") and (', meaning "shell"). The name is misleading, since the shell is soft only immediately after moulting, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anchialine
An anchialine system (, from Greek ''ankhialos'', "near the sea") is a landlocked body of water with a subterranean connection to the ocean. Depending on its formation, these systems can exist in one of two primary forms: pools or caves. The primary differentiating characteristics between pools and caves is the availability of light; cave systems are generally aphotic while pools are euphotic. The difference in light availability has a large influence on the biology of a given system. Anchialine systems are a feature of coastal aquifers which are density stratified, with water near the surface being fresh or brackish, and saline water intruding from the coast at depth. Depending on the site, it is sometimes possible to access the deeper saline water directly in the anchialine pool, or sometimes it may be accessible by cave diving. Anchialine systems are extremely common worldwide especially along neotropical coastlines where the geology and aquifer systems are relatively young, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shrimp
Shrimp are crustaceans (a form of shellfish) with elongated bodies and a primarily swimming mode of locomotion – most commonly Caridea and Dendrobranchiata of the decapod order, although some crustaceans outside of this order are referred to as "shrimp". More narrow definitions may be restricted to Caridea, to smaller species of either group or to only the marine species. Under a broader definition, ''shrimp'' may be synonymous with prawn, covering stalk-eyed swimming crustaceans with long, narrow muscular tails ( abdomens), long whiskers ( antennae), and slender legs. Any small crustacean which resembles a shrimp tends to be called one. They swim forward by paddling with swimmerets on the underside of their abdomens, although their escape response is typically repeated flicks with the tail driving them backwards very quickly. Crabs and lobsters have strong walking legs, whereas shrimp have thin, fragile legs which they use primarily for perching.Rudloe & Rudloe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crustacean
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order (biology)
Order ( la, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes. An immediately higher rank, superorder, is sometimes added directly above order, with suborder directly beneath order. An order can also be defined as a group of related families. What does and does not belong to each order is determined by a taxonomist, as is whether a particular order should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing an order. Some taxa are accepted almost universally, while others are recognized only rarely. The name of an order is usually written with a capital letter. For some groups of organisms, their orders may fol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_image_number_219_caves.jpg "Click for more on -> Anchialine")
