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Schendyla Antici
''Schendyla antici'' is a species of soil centipede in the family Schendylidae. This species is notable as one of only six species in the order Geophilomorpha to feature centipedes with only 29 pairs of legs, which is also the minimum number recorded in the genus ''Schendyla''. No other species in this genus features so few legs. Discovery This species was first described by three biologists from the University of Belgrade ( Dalibor Z Stojanović, Mirko Ševićin, and Slobodan E Makarov) in 2024, based on specimens extracted from soil samples from Medvednik mountain in western Serbia. These specimens include not only a male holotype collected in 2011 and fourteen paratypes (five males and nine females) collected in 2021 but also seven more specimens (two males, five females, and three juvenile females) collected in 2023. The specific name of ''S. antici'' honors the Serbian myriapodologiist Dragan Antić, who discovered the first specimen and participated in the collection of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can reproduction, produce Fertility, fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paratype
In zoology and botany, a paratype is a specimen of an organism that helps define what the scientific name of a species and other taxon actually represents, but it is not the holotype (and in botany is also neither an isotype nor a syntype). Often there is more than one paratype. Paratypes are usually held in museum research collections. The exact meaning of the term ''paratype'' when it is used in zoology is not the same as the meaning when it is used in botany. In both cases however, this term is used in conjunction with ''holotype''. Zoology In zoological nomenclature, a paratype is officially defined as "Each specimen of a type series other than the holotype.", ''International Code of Zoological Nomenclature'' In turn, this definition relies on the definition of a "type series". A type series is the material (specimens of organisms) that was cited in the original publication of the new species or subspecies, and was not excluded from being type material by the author (t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myriapods Of Europe
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sternum (arthropod Anatomy)
The sternum (pl. "sterna") is the ventral portion of a segment of an arthropod thorax or abdomen. In insects, the sterna are usually single, large sclerites, and external. However, they can sometimes be divided in two or more, in which case the subunits are called sternites, and may also be modified on the terminal abdominal segments so as to form part of the functional genitalia, in which case they are frequently reduced in size and development, and may become internalized and/or membranous. For a detailed explanation of the terminology, see Kinorhynchs have tergal and sternal plates too, though seemingly not homologous with those of arthropods.Sørensen, M. V. et al. Phylogeny of Kinorhyncha based on morphology and two molecular loci. PLoS One 10, 1–33 (2015). Ventrites are externally visible sternites. Usually the first sternite is covered up, so that vertrite numbers do not correspond to sternid numbers. The term is also used in other arthropod groups such as crustacea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultimate Legs
Ultimate legs are a pair of modified rear legs unique to centipedes. Although they do not aid in locomotion, ultimate legs are used for a variety of uses, and their morphology varies accordingly. Sexual dimorphism is frequently present. Usage As a defence against predators In many species, ultimate legs are used in warning postures to scare of predators. The ultimate legs are raised, splayed, and sometimes waved back and forth. The presence of spines on the ultimate legs of some species also serves a defensive role- as Lewis & Kronmüller (2015) put it, "a predator approaching from behind would come into contact with a battery of spines." For suspension Some species use their ultimate legs to hang or anchor themselves from trees or other desired objects. This has been recorded as playing a role in predation; the centipede suspends itself in the air and swings back and forth to capture prey. In contact with other centipedes Before mating, many species of Scolopend ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forcipule
Forcipules are the modified, pincer-like, front legs of centipedes that are used to inject venom into prey. They are the only known examples of front legs acting as venom injectors. Nomenclature Forcipules go by a variety of names in both scientific and colloquial usages. They are sometimes known as poison claws or jaw legs, referencing their evolution from maxillipeds, a term which they are also sometimes known by in the context of centipedes (maxillipeds, maxillipedes). Other names include toxicognaths (from ''toxic'' + the Greek '' gnathos'', jaw), prehensors, telopodites, and forcipulae (singular forcipula). The term forcipule references their similarity with forceps. Anatomy, systematics, and variation Forcipules evolved from the maxillipeds, meaning the front legs of an arthropod, of centipedes' last common ancestor, believed to be somewhat Scutigeromorph-like. They were initially leg-like, then progressed into a more pincer or claw-like shape, as seen today, and res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denticle (tooth Feature)
Denticles, also called serrations, are small bumps on a tooth that serve to give the tooth a serrated edge. In paleontology, denticle characteristics such as size and density (denticles per unit distance) are used to describe and classify fossilized teeth, especially those of dinosaurs. Denticles are also present on the teeth of varanoid lizards, sharks, and mammals. The term is also used to describe the analogous radular teeth of mollusks. Archived aPDF File:Dromaeosauridae tooth.TIF, Dromaeosauridae tooth with small denticles along the cutting edge. Scale bars are 1 mm. File:Ankylosaurus tooth.jpg, '' Ankylosaurus'' tooth with large denticles. File:Dentary teeth of Segnosaurus.png, ''Segnosaurus ''Segnosaurus'' is a genus of therizinosaurid dinosaur that lived in what is now southeastern Mongolia during the Late Cretaceous, about 102–86 million years ago. Multiple incomplete but well-preserved specimens were discovered in the Go ...'' dentition featuring a tri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forcipule
Forcipules are the modified, pincer-like, front legs of centipedes that are used to inject venom into prey. They are the only known examples of front legs acting as venom injectors. Nomenclature Forcipules go by a variety of names in both scientific and colloquial usages. They are sometimes known as poison claws or jaw legs, referencing their evolution from maxillipeds, a term which they are also sometimes known by in the context of centipedes (maxillipeds, maxillipedes). Other names include toxicognaths (from ''toxic'' + the Greek '' gnathos'', jaw), prehensors, telopodites, and forcipulae (singular forcipula). The term forcipule references their similarity with forceps. Anatomy, systematics, and variation Forcipules evolved from the maxillipeds, meaning the front legs of an arthropod, of centipedes' last common ancestor, believed to be somewhat Scutigeromorph-like. They were initially leg-like, then progressed into a more pincer or claw-like shape, as seen today, and res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antenna (biology)
Antennae ( antenna), sometimes referred to as "feelers", are paired appendages used for Sensory system, sensing in arthropods. Antennae are connected to the first one or two Segmentation (biology), segments of the arthropod head. They vary widely in form but are always made of one or more jointed segments. While they are typically sensory organs, the exact nature of what they sense and how they sense it is not the same in all groups. Functions may variously include sensing tactition, touch, air motion, heat, vibration (sound), and especially insect olfaction, smell or gustation, taste. Antennae are sometimes modified for other purposes, such as mating, brooding, swimming, and even anchoring the arthropod to a substrate (biology), substrate. Larval arthropods have antennae that differ from those of the adult. Many crustaceans, for example, have free-swimming larvae that use their antennae for swimming. Antennae can also locate other group members if the insect lives in a group, lik ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sexual Dimorphism
Sexual dimorphism is the condition where the sexes of the same animal and/or plant species exhibit different morphological characteristics, particularly characteristics not directly involved in reproduction. The condition occurs in most animals and some plants. Differences may include secondary sex characteristics, size, weight, colour, markings, or behavioural or cognitive traits. These differences may be subtle or exaggerated and may be subjected to sexual selection and natural selection. The opposite of dimorphism is ''monomorphism'', which is when both biological sexes are phenotypically indistinguishable from each other. Overview Ornamentation and coloration Common and easily identified types of dimorphism consist of ornamentation and coloration, though not always apparent. A difference in coloration of sexes within a given species is called sexual dichromatism, which is commonly seen in many species of birds and reptiles. Sexual selection leads to the exaggerat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dragan Ž
Dragan (, sr-Cyrl, Драган) is a popular Serbo-Croatian masculine given name derived from the common Slavic element ''drag'' meaning "dear, beloved". The feminine form is Dragana. People named Dragan include: Politicians and office holders * Dragan Čavić, Bosnian Serb politician * Dragan Čović, Croat politician in Bosnia and Herzegovina * Dragan Đilas, Serbian politician and businessman * Dragan Đokanović, Bosnian Serb politician *Dragan Đorđević, Serbian politician *Dragan Jočić, Serbian politician *Dragan Kojadinović, Serbian journalist, politician and Minister of Culture *Dragan Marković, Serbian politician *Dragan Maršićanin, Serbian politician * Dragan Mikerević, Bosnian Serb politician * Dragan Primorac, Croatian scientist and politician * Dragan Šutanovac, Serbian Minister of Defense *Dragan Todorović (politician), Serbian politician * Dragan Tomić, Serbian politician, acting President of Serbia in 1997 * Dragan Tsankov, Bulgarian politician, twi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myriapodology
Myriapodology is the scientific study of myriapods which includes centipedes and millipedes. The field of myriapodology can also cover other myriapods such as pauropods and symphylans. Those who study myriapods are myriapodologists. Societies * International Society of Myriapodology Journals * ''International Journal of Myriapodology'' * ''Myriapodologica'' * ''Myriapod Memoranda'' Notable myriapodologists * Carl Attems (1868–1952), Austrian zoologist, described over 1,000 species * Stanley Graham Brade-Birks (1887-1982), English myriapodologist who with Hilda K Brade-Birks authored ''Notes on Myriapoda'': 23 papers jointly from 1916 to the 1920s; then twelve more solo until 1939 * Henry W. Brolemann (1860–1933), French myriapodologist, described around 500 species * Ralph Vary Chamberlin (1879–1967), American arachnologist and myriapodologist, described over 1,000 species * Orator F. Cook (1867–1949), American botanist and myriapodologist, co-described world's leggie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
