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Polydesmida
Polydesmida (from the Greek ''poly'' "many" and ''desmos'' "bond") is the largest order of millipedes, containing approximately 3,500 species, including all the millipedes reported to produce hydrogen cyanide (HCN). Description Members of the order Polydesmida are also known as "flat-backed millipedes", because on most species, each body segment has wide lateral keels known as paranota. These keels are produced by the posterior half (metazonite) of each body ring behind the collum. Polydesmids have no eyes, and vary in length from . Many of the larger species show bright coloration patterns which warn predators of their toxic secretions. Adults usually have 20 segments, counting the collum as the first ring and the telson as the last ring. Juveniles have from 7 to 19 rings. In species with the usual 20 segments, adult females have 31 pairs of legs, but in adult males, the eighth leg pair (the first leg pair of the 7th ring) is modified into a single pair of gonopods, leaving on ... [...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 fu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Collum (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 or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dalodesmidae
Dalodesmidae is a family of millipedes in the order Polydesmida, containing at least 250 species found in the Southern Hemisphere. Distribution Species of Dalodesmidae are found in Australia (over 100 species), Madagascar, New Caledonia, New Zealand, South Africa, and southern South America (Chile and southern Brazil). Classification Dalodesmidae is one of the major families of the order Polydesmida, with at least 55 genera and 250 speciesWilliam Shear. (2011). Class Diplopoda de Blainville in Gervais, 1844. In: Zhang, Z.-Q. (Ed.) Animal biodiversity: An outline of higher-level classification and survey of taxonomic richness.—Zootaxa 3148:149—164. (with some estimates up to 340 species). It is related to the small family Vaalogonopodidae Vaalogonopodidae is a family of millipedes belonging to the order Polydesmida Polydesmida (from the Greek ''poly'' "many" and ''desmos'' "bond") is the largest order of millipedes, containing approximately 3,500 species, including all ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xystodesmidae
Xystodesmidae is a family of millipedes. Its members often have very small distributional areas, with many species only known from a single locality. They are found across the northern hemisphere, with peak diversity in the Appalachian Mountains, where one-third of the 300 or so species occur. They are particularly abundant in deciduous broadleaf forests in the Mediterranean Basin, Africa, Asia, Central and North America, and Russia. Information on basic taxonomy is scant for this family; for example, it is estimated that the genus ''Nannaria'' contains over 200 species, but only 25 were described as of 2006. By 2022, 78 species in ''Nannaria'' have been described. Xystodesmidae contains many colorful and distinctive species, including ''Apheloria virginiensis'' of the eastern U.S. and '' Harpaphe haydeniana'' of the western U.S. The Sierra luminous millipedes of the genus ''Motyxia'' exhibit the only known examples of bioluminescence in the Polydesmida. Species of ''Apheloria'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachydesmus
''Brachydesmus'' is a genus of millipedes belonging to the family Polydesmidae. Millipedes in this genus are found mainly in Europe. Species in this genus have 19 segments as adults (counting the collum, the telson, and the rings in between). Adult females have 29 pairs of legs, and adult males have 28 pairs of walking legs, excluding one pair of gonopods. Species Species within this genus include: Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard DCatalogue of Life * ''Brachydesmus absoloni'' * ''Brachydesmus amblyotropis'' * ''Brachydesmus apfelbecki'' * ''Brachydesmus assimilis'' * '' Brachydesmus attemsi'' * ''Brachydesmus attemsii'' * ''Brachydesmus attenuatus'' * ''Brachydesmus avalae'' * ''Brachydesmus bebekensis'' * ''Brachydesmus bidentatus'' * ''Brachydesmus bosniensis'' * ''Brachydesmus camerani'' * ''Brachydesmus carniolensis'' * ''Brachydesmus cernagoranus'' * ''Brachydesmus chyzeri'' * '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chelodesmidae
Chelodesmidae, is a millipede family of order Polydesmida. The family includes 219 genera. Two new genera were described in 2012. Genera A *'' Achromoporus'' *'' Afolabina'' *'' Alassodesmus'' *'' Allarithmus'' *'' Alocodesmus'' *''Alyssa'' *'' Amphelictogon'' *'' Amphipeltis'' *'' Ancholeptodesmus'' *'' Ancylochetus'' *'' Aneurydesmus'' *'' Angelodesmus'' *'' Anisodesmus'' *'' Ankylophallus'' *'' Antillodesmus'' *'' Antrogonodesmus'' *'' Aplopododesmus'' *'' Arthromachus'' *'' Arthrosolaenomeris'' *'' Astrophogonus'' *'' Attemsiella'' *'' Atylophor'' B *'' Basacantha'' *'' Baianassa'' *'' Batodesmus'' *'' Beatadesmus'' *'' Belonodesmus'' *'' Benoitesmus'' *'' Biaporus'' *'' Biporodesmus'' *'' Brachyurodesmus'' *'' Brasilodesmus'' *'' Brasiloschubartia'' C *'' Callistocilla'' *'' Camptomorpha'' *'' Camptomorphoides'' *'' Cantabrodesmus'' *'' Caracodesmus'' *'' Caraibodesmus'' *'' Carlopeltis'' *'' Carloporus'' *'' Catharodesmus'' *'' C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chelodesmoidea
Chelodesmidae, is a millipede family of order Polydesmida. The family includes 219 genera. Two new genera were described in 2012. Genera A *'' Achromoporus'' *'' Afolabina'' *'' Alassodesmus'' *'' Allarithmus'' *'' Alocodesmus'' *''Alyssa'' *'' Amphelictogon'' *'' Amphipeltis'' *'' Ancholeptodesmus'' *'' Ancylochetus'' *'' Aneurydesmus'' *'' Angelodesmus'' *'' Anisodesmus'' *'' Ankylophallus'' *'' Antillodesmus'' *'' Antrogonodesmus'' *'' Aplopododesmus'' *'' Arthromachus'' *'' Arthrosolaenomeris'' *'' Astrophogonus'' *'' Attemsiella'' *'' Atylophor'' B *'' Basacantha'' *'' Baianassa'' *'' Batodesmus'' *'' Beatadesmus'' *'' Belonodesmus'' *'' Benoitesmus'' *'' Biaporus'' *'' Biporodesmus'' *'' Brachyurodesmus'' *'' Brasilodesmus'' *'' Brasiloschubartia'' C *'' Callistocilla'' *'' Camptomorpha'' *'' Camptomorphoides'' *'' Cantabrodesmus'' *'' Caracodesmus'' *'' Caraibodesmus'' *'' Carlopeltis'' *'' Carloporus'' *'' Catharodesmus'' *'' Cay ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paradoxosomatidea
Paradoxosomatidae, the only family in the suborder Paradoxosomatidea (also known as Strongylosomatidea), is a family (biology), family of flat-backed millipedes in the order Polydesmida. Containing nearly 200 genera and 975 species , it is one of the largest families of millipedes. Paradoxosomatids occur on all continents except Antarctica, and can generally be distinguished by dorsal grooves on most body segments and a dumb-bell shaped gonopod aperture. Notable groups within the Paradoxosomatidae include the Desmoxytes, dragon millipedes of Southeast Asia, and the widely Introduced species, introduced greenhouse millipede ''Oxidus gracilis''. Description The family is characterised by several traits. Most species possess a groove or furrow ("sulcus") on the dorsal surface between the keels (paranota) on each segment, and the keels of the second body segment are situated lower on the body than those of the first segment (collum (millipedes), collum) and third segment. In males, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polydesmidea
Polydesmidea is a suborder of flat-backed millipedes under the order Polydesmida Polydesmida (from the Greek ''poly'' "many" and ''desmos'' "bond") is the largest order of millipedes, containing approximately 3,500 species, including all the millipedes reported to produce hydrogen cyanide (HCN). Description Members of the or .... References Polydesmida Arthropod suborders {{Myriapoda-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paradoxosomatidae
Paradoxosomatidae, the only family in the suborder Paradoxosomatidea (also known as Strongylosomatidea), is a family of flat-backed millipedes in the order Polydesmida. Containing nearly 200 genera and 975 species , it is one of the largest families of millipedes. Paradoxosomatids occur on all continents except Antarctica, and can generally be distinguished by dorsal grooves on most body segments and a dumb-bell shaped gonopod aperture. Notable groups within the Paradoxosomatidae include the dragon millipedes of Southeast Asia, and the widely introduced greenhouse millipede ''Oxidus gracilis''. Description The family is characterised by several traits. Most species possess a groove or furrow ("sulcus") on the dorsal surface between the keels ( paranota) on each segment, and the keels of the second body segment are situated lower on the body than those of the first segment ( collum) and third segment. In males, the opening on the underside of the body where the gonopods (ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gonopod (millipede)
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 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 decapod crustaceans, gonopods are modified swimming appendages (pleopods). The anterior two pair of pleopods in males are modified for sperm transferring, with differing degree of morpholog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptodesmidea
Leptodesmidea is a suborder of flat-backed millipedes under the order Order, ORDER or Orders may refer to: * Categorization, the process in which ideas and objects are recognized, differentiated, and understood * Heterarchy, a system of organization wherein the elements have the potential to be ranked a number of d ... Polydesmida. References Polydesmida Arthropod suborders {{Myriapoda-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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