Synxenidae
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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Schindalmonotus
''Schindalmonotus'' 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 ''Schindalmonotus hystrix'' known from South Africa and Mozambique. Individuals are up to 4 mm long and have 12 body segments and 17 pairs of legs. The species was described by Austrian zoologist Carl Attems in 1928. References Polyxenida Millipedes of Africa Monotypic arthropod genera {{Myriapoda-stub ...
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Millipede Families
Millipedes, myriapods of the class Diplopoda, contain approximately 12,000 described species organized into 16 extant orders and approximately 140 families. This list is based on Shear, 2011, sorted alphabetically by order and taxonomically within order. Note: The names of millipede orders end in "-ida"; suborders end in "-idea". Superfamilies end in "-oidea", while families end in "-idae". Callipodida Suborder Callipodidea * Callipodidae Suborder Schizopetalidea * Abacionidae * Caspiopetalidae * Dorypetalidae * Paracortinidae * Schizopetalidae Suborder Sinocallipodidea * Sinocallipodidae Chordeumatida Suborder Chordeumatidea Superfamily Chordeumatoidea * Chordeumatidae * Speophilosomatidae Suborder Craspedosomatidea Superfamily Anthroleucosomatoidea * Anthroleucosomatidae * Haasiidae * Origmatogonidae * Vandeleumatidae Superfamily Brannerioidea * Brachychaeteumatidae * Branneriidae * Chamaesomatidae * Golovatchiidae * Heterolatzeliidae * Kashmireumatid ...
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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 ...
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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 ...
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Myriapoda
Myriapods () are the members of subphylum Myriapoda, containing arthropods such as millipedes and centipedes. The group contains about 13,000 species, all of them terrestrial. The fossil record of myriapods reaches back into the late Silurian, although molecular evidence suggests a diversification in the Cambrian Period, and Cambrian fossils exist which resemble myriapods. The oldest unequivocal myriapod fossil is of the millipede ''Pneumodesmus newmani'', from the late Silurian (428 million years ago). ''P. newmani'' is also important as the earliest known terrestrial animal. The phylogenetic classification of myriapods is still debated. The scientific study of myriapods is myriapodology, and those who study myriapods are myriapodologists. Anatomy Myriapods have a single pair of antennae and, in most cases, simple eyes. Exceptions are the two classes symphylans and pauropods, and the millipede order Polydesmida and the centipede order Geophilomorpha, which are all eyele ...
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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 ...
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Filippo Silvestri
Filippo Silvestri (22 June 1873 – 10 June 1949) was an Italian entomologist. He specialised in world Protura, Thysanura, Diplura and Isoptera, but also worked on Hymenoptera, Myriapoda and Italian Diptera. He is also noted for describing and naming the previously unknown order Zoraptera. In 1938 he was nominated to the Pontifical Academy of Sciences, the scientific academy of the Vatican. Silvestri was born in Bevagna. A keen young naturalist, he became assistant to Giovanni Battista Grassi (1854–1925), Director of the Institute of Anatomical Research of the University of Rome. In 1904, Silvestri became Director of the Institute of Entomology and Zoology at the agricultural college in Portici (the Laboratorio di Zoologia Generale e Agraria, now Faculty of Agriculture), a position he held for 45 years. He discovered polyembryony in the 1930s while working on ''Litomatix truncatellus'' Hymenoptera. His collection is in the Museo Civico di Storia Naturale di Genova. Duplica ...
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Bristly Millipede
''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 ...
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