|
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 A carapace is a dorsal (upper) section of the exoskeleton or shell in a number of animal groups, including arthropods, such as crustaceans and arachnids, as well as vertebrates, such as turtles and tortoises. In turtles and tortoises, the unde .... 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 ... [...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 wat ... [...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. He graduated from Kent School in Kent, Connecticut in 1937 and Harvard College in 1941. During the Second World War, he spent four years in the 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 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 chaetognath), 16 genera and one order, Mictacea, Bowman also produced significant works on the structura ... [...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 families Taxa described in 1985 {{Malacostraca-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hirsutiidae
Hirsutiidae is a family of crustacean Crustaceans (from Latin meaning: "those with shells" or "crusted ones") are invertebrate animals that constitute one group of arthropods that are traditionally a part of the subphylum Crustacea (), a large, diverse group of mainly aquatic arthrop ...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 families Taxa described in 1985 {{Malacostraca-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malacostraca
Malacostraca is the second largest of the six classes of pancrustaceans behind insects, 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, spiny lobsters, crayfish, shrimp, krill, prawns, isopods, amphipods, mantis shrimp, 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 is . The word was used by Aristotle, who contrasted them with oysters, in comparison with which their shells are pliable. It was applied to this taxon by French zoologist Pierre André Latreille in 1802. He was curator of the arthropod collection at the National Museum of Natural History in Paris. This scientific name is misl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Biology, biological Kingdom (biology), kingdom Animalia (). With few exceptions, animals heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, have myocytes and are motility, able to move, can reproduce sexually, and grow from a hollow sphere of Cell (biology), cells, the blastula, during embryonic development. Animals form a clade, meaning that they arose from a single common ancestor. Over 1.5 million extant taxon, living animal species have been species description, described, of which around 1.05 million are insects, over 85,000 are molluscs, and around 65,000 are vertebrates. It has been estimated there are as many as 7.77 million animal species on Earth. Animal body lengths range from to . They have complex ecologies and biological interaction, interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as ... [...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 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shrimp
A shrimp (: shrimp (American English, US) or shrimps (British English, UK)) is a crustacean with an elongated body and a primarily Aquatic locomotion, swimming mode of locomotion – typically Decapods belonging to the Caridea or Dendrobranchiata, although some Shrimp#Non-decapods, crustaceans outside of this order are also referred to as "shrimp". Any small crustacean may also be referred to as "shrimp", regardless of resemblance. More narrow definitions may be restricted to Caridea, to smaller species of either of the aforementioned groups, or only the Marine life, marine species. Under a broader definition, ''shrimp'' may be synonymous with prawn, covering stalk-eyed swimming crustaceans with long, narrow muscular tails (Abdomen#Arthropoda, abdomens), long whiskers (Antenna (biology), antennae), and slender, Biramous, biramous legs. They swim forward by paddling the swimmerets on the underside of their abdomens, although their escape response is typically repeated flicks wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crustacean
Crustaceans (from Latin meaning: "those with shells" or "crusted ones") are invertebrate animals that constitute one group of arthropods that are traditionally a part of the subphylum Crustacea (), a large, diverse group of mainly aquatic arthropods including decapods (shrimps, prawns, crabs, lobsters and crayfish), seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, opossum shrimps, 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 (insects and entognathans) emerged deep in the Crustacean group, with the completed pan-group referred to as Pancrustacea. The three classes Cephalocarida, Branchiopoda and Remipedia are more closely related to the hexapods than they are to any of the other crustaceans ( oligostracans and multicrustaceans). The 67,000 described species range in size from '' Stygotantulus stocki'' at , to the Japanese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order (biology)
Order () 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 follow consist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
