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Polyxenida
Polyxenida is an order of millipedes readily distinguished by a unique body plan consisting of a soft, non-calcified body ornamented with tufts of bristles – traits that have inspired the common names "bristly millipedes" or "pincushion millipedes". There are at least 86 species in four families worldwide, and are the only living members of the subclass Penicillata. Description Polyxenida differ from other millipedes in having a soft, non-calcified exoskeleton, unique tufts of bristles or setae, fewer legs (no more than 17 pairs), and an absence of copulatory appendages in males. Individuals are small, not exceeding 7 millimeters (0.28 inches). Adults in most species have 13 pairs of legs, but in one species ('' Lophoturus madecassus''), they have only 11 pairs of legs, and in one genus ('' Phryssonotus''), they have 17 pairs of legs, except for one species (''Phryssonotus brevicapensis'') in which they (along with those in one other species, '' Condexenus biramipalpus'') ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Millipedes
Millipedes are a group of arthropods that are characterised by having two pairs of jointed legs on most body segments; they are known scientifically as the class Diplopoda, the name derived from this feature. Each double-legged segment is a result of two single segments fused together. Most millipedes have very elongated cylindrical or flattened bodies with more than 20 segments, while pill millipedes are shorter and can roll into a tight ball. Although the name "millipede" derives from the Latin for "thousand feet", no species was known to have 1,000 or more until the discovery of '' Eumillipes persephone'', which can have over 1,300 legs. There are approximately 12,000 named species classified into 16 orders and around 140 families, making Diplopoda the largest class of myriapods, an arthropod group which also includes centipedes and other multi-legged creatures. Most millipedes are slow-moving detritivores, eating decaying leaves and other dead plant matter. Some eat fungi o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Millipede
Millipedes are a group of arthropods that are characterised by having two pairs of jointed legs on most body segments; they are known scientifically as the class Diplopoda, the name derived from this feature. Each double-legged segment is a result of two single segments fused together. Most millipedes have very elongated cylindrical or flattened bodies with more than 20 segments, while pill millipedes are shorter and can roll into a tight ball. Although the name "millipede" derives from the Latin for "thousand feet", no species was known to have 1,000 or more until the discovery of ''Eumillipes persephone'', which can have over 1,300 legs. There are approximately 12,000 named species classified into 16 orders and around 140 families, making Diplopoda the largest class of myriapods, an arthropod group which also includes centipedes and other multi-legged creatures. Most millipedes are slow-moving detritivores, eating decaying leaves and other dead plant matter. Some eat fungi or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyxenidae
Polyxenidae is a family of millipedes in the order Polyxenida containing approximately 47 species in 19 genera. Adults in all species in this family have 13 pairs of legs. Genera * '' Allographis'' Silvestri 1948 * '' Anopsxenus'' Condé & Jacquemin 1963 * '' Chilexenus'' Silvestri 1948 * '' Eudigraphis ''Silvestri 1948 * ''Macroxenodes ''Silvestri 1948 * '' Macroxenus ''Brölemann 1917 * '' Mauritixenus ''Verhoeff 1939 * '' Mesoxenontus ''Silvestri 1948 * '' Miopsxenus'' Condé 1951 * '' Monographis'' Attems 1907 * '' Monoxenus ''Jones 1937 * '' Pauropsxenus'' Silvestri 1948 (Fossil species known from Burmese amber, Cenomanian) * '' Pollyxenus ''Latreille 1802/1803 * ''Polyxenus'' Latzel 1884 * '' Propolyxenus ''Silvestri 1948 * '' Saroxenus ''Cook 1896 * '' Silvestrus'' Jones 1937 * '' Typhloxenus'' Condé 1955 * '' Unixenus'' Jones 1944 * †'' Electroxenus'' Nguyen Duy-Jacquemin and Azar 2004 Lebanese amber, Barremian The Barremian is an age in the geologic timescale (or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyxenus Lagurus
''Polyxenus lagurus'', known as the bristly millipede is a species of millipede Millipedes are a group of arthropods that are characterised by having two pairs of jointed legs on most body segments; they are known scientifically as the class Diplopoda, the name derived from this feature. Each double-legged segment is a resu ... found in many areas of Europe and North America.p. 13 It is covered with detachable bristles that have the ability to entangle ants and spiders that attack the animal. References Polyxenida Millipedes of Europe Millipedes of North America Animals described in 1758 Taxa named by Carl Linnaeus {{Myriapoda-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synxenidae
Synxenidae is a family of bristly millipedes (Polyxenida). Three genera and around 10 species are known. Adult synxenids possess 15 or 17 pairs of legs, with the last two pair modified for small jumps. Adults in most species in this family have 17 pairs of legs, but in two species (''Condexenus biramipalpus'' and ''Phryssonotus brevicapensis''), they have only 15 pairs of legs. References Polyxenida Millipede families Taxa named by Filippo Silvestri {{Myriapoda-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phryssonotus Brevicapensis
''Phryssonotus'' is a genus of bristle millipedes containing around nine extant species. Species are characterized by the possession of dark, rear-projecting scale-shaped bristles (trichomes) on the tergites; all other bristles are long and hairlike. Adults in this genus have 17 pairs of legs, except for the species ''Phryssonotus brevicapensis'', in which they have only 15 pairs of legs. Species *'' Phryssonotus brevicapensis'' *'' Phryssonotus burmiticus'' *'' Phryssonotus capensis'' *'' Phryssonotus chilensis'' *'' Phryssonotus cubanus'' *'' Phryssonotus hystrix'' *'' Phryssonotus novaehollandiae'' *'' Phryssonotus orientalis'' *'' Phryssonotus platycephalus'' *†'' Phryssonotus burmiticus'' Cockerell 1917 Burmese amber, Myanmar, Cenomanian *†'' Phryssonotus hystrix'' Menge 1854 Baltic amber The Baltic region is home to the largest known deposit of amber, called Baltic amber or succinite. It was produced sometime during the Eocene epoch, but exactly when is controver ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Condexenus
''Condexenus'' is a genus of bristle millipede Polyxenida is an order of millipedes readily distinguished by a unique body plan consisting of a soft, non-calcified body ornamented with tufts of bristles – traits that have inspired the common names "bristly millipedes" or "pincushion millipe ... containing the sole species ''Condexenus biramipalpus'' known from Namibia. Individuals are up to 3 mm long, and adults possess 11 body segments and 15 pairs of legs. References Polyxenida Millipedes of Africa Animals described in 2006 Arthropods of Namibia Monotypic arthropod genera {{Myriapoda-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phryssonotus
''Phryssonotus'' is a genus of bristle millipedes containing around nine extant species. Species are characterized by the possession of dark, rear-projecting scale-shaped bristles (trichomes) on the tergites; all other bristles are long and hairlike. Adults in this genus have 17 pairs of legs, except for the species ''Phryssonotus brevicapensis'', in which they have only 15 pairs of legs. Species *''Phryssonotus brevicapensis'' *'' Phryssonotus burmiticus'' *'' Phryssonotus capensis'' *'' Phryssonotus chilensis'' *'' Phryssonotus cubanus'' *'' Phryssonotus hystrix'' *'' Phryssonotus novaehollandiae'' *'' Phryssonotus orientalis'' *'' Phryssonotus platycephalus'' *†'' Phryssonotus burmiticus'' Cockerell 1917 Burmese amber, Myanmar, Cenomanian *†'' Phryssonotus hystrix'' Menge 1854 Baltic amber The Baltic region is home to the largest known deposit of amber, called Baltic amber or succinite. It was produced sometime during the Eocene epoch, but exactly when is controvers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthropod
Arthropods (, (gen. ποδός)) are invertebrate animals with an exoskeleton, a Segmentation (biology), segmented body, and paired jointed appendages. Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and Arthropod cuticle, cuticle made of chitin, often Mineralization (biology), mineralised with calcium carbonate. The arthropod body plan consists of segments, each with a pair of appendages. Arthropods are bilaterally symmetrical and their body possesses an exoskeleton, external skeleton. In order to keep growing, they must go through stages of moulting, a process by which they shed their exoskeleton to reveal a new one. Some species have wings. They are an extremely diverse group, with up to 10 million species. The haemocoel, an arthropod's internal cavity, through which its haemolymph – analogue of blood – circulates, accommodates its interior Organ (anatomy), organs; it has an open circulatory system. Like their exteriors, the internal or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypogexenidae
Hypogexenidae is a family of millipedes belonging to the order Polyxenida Polyxenida is an order of millipedes readily distinguished by a unique body plan consisting of a soft, non-calcified body ornamented with tufts of bristles – traits that have inspired the common names "bristly millipedes" or "pincushion millip .... Genera: * '' Hypogexenus'' Silvestri, 1903 References Polyxenida {{Myriapoda-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lophoproctidae
Lophoproctidae is a family of millipedes in the order Polyxenida containing approximately 65 species in 6 genera Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclat .... Description Lophoproctids are distinguished by a soft body, bearing bristles at the posterior end of each diplosegment; they are blind and generally lack pigmentation. Individuals are small, ranging in size from 1.2 to 4.2 mm. Adults have 13 pairs of legs with internal leg buds, except for those in one species (''Lophoturus madecassus''), which have only 11 pairs of legs. Genera As of 2017, the family contains the following genera: '' Alloproctoides'' Marquet & Condé 1950 '' Ancistroxenus'' Schubart 1947 '' Lophoproctinus'' Silvestri 1948 '' Lophoproctus'' Pocock 1894 '' Lophoturus'' Brölemann 1931 '' Plesioproctu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gonopod
Gonopods are specialized appendages of various arthropods used in reproduction or egg-laying. In males, they facilitate the transfer of sperm from male to female during mating, and thus are a type of intromittent organ. In crustaceans and millipedes, gonopods are modified walking or swimming legs. Gonopods may be highly decorated with elaborate structures which may play roles in sperm competition, and can be used to differentiate and identify closely related species. Gonopods generally occur in one or more pairs, as opposed to the single (un-paired) reproductive organs such as the aedeagus of insects or the Opiliones penis, penis of harvestmen. Insects In insects, gonopods are appendages of the genital segment that may be used in insemination, or that comprise the egg-laying apparatus. Crustaceans In male decapoda, decapod crustaceans, gonopods are modified swimming appendages (pleopods). The anterior two pair of pleopods in males are modified for sperm transferring, with dif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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