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Doratodesmus Pholeter
''Doratodesmus'' ''pholeter'' is a is a species of flat-backed millipede in the family Haplodesmidae. This millipede is found in Papua New Guinea. This species is notable for featuring adult males with only 18 segments (counting the collum as the first segment and the telson as the last) rather than the 20 segments normally observed in the order Polydesmida. This species also exhibits sexual dimorphism in segment number, with 19 segments in adult females but only 18 segments in adult males. Discovery and distribution This species was first described in 1978 by the American zoologist Richard L. Hoffman. He based the original description of this species on an adult male holotype, an adult female paratype, and four immature females. These specimens were found in 1975 in the upper west chamber of the Bitip Cave on the Finim Tel plateau in the Western Province of Papua New Guinea. This species is still known only from this cave. The male holotype and female paratype are deposited i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard L
Richard is a male given name. It originates, via Old French, from Old Frankish and is a compound of the words descending from Proto-Germanic language">Proto-Germanic ''*rīk-'' 'ruler, leader, king' and ''*hardu-'' 'strong, brave, hardy', and it therefore means 'strong in rule'. Nicknames include "Richie", "Dick (nickname), Dick", "Dickon", "Dickie (name), Dickie", "Rich (given name), Rich", "Rick (given name), Rick", "Rico (name), Rico", "Ricky (given name), Ricky", and more. Richard is a common English (the name was introduced into England by the Normans), German and French male name. It's also used in many more languages, particularly Germanic, such as Norwegian, Danish, Swedish, Icelandic, and Dutch, as well as other languages including Irish, Scottish, Welsh and Finnish. Richard is cognate with variants of the name in other European languages, such as the Swedish "Rickard", the Portuguese and Spanish "Ricardo" and the Italian "Riccardo" (see comprehensive variant list belo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Museum Of Natural History, Bulgaria
The National Museum of Natural History (, ''Natsionalen prirodonauchen muzey''), or NMNHS, is a natural history museum in the Bulgarian capital of Sofia. History Founded in 1889, it is affiliated with the Bulgarian Academy of Sciences and is the first and largest museum of this kind on the Balkans.https://www.nmnhs.com/history-en.html NMNHS History The Museum's collection includes over 400 stuffed mammals, over 1,200 species of birds, hundreds of thousands of insects and other invertebrates, as well as samples of about one quarter of the world's minerals. The museum was founded in 1889 as the Natural History Museum of Knyaz Ferdinand of Bulgaria, with various foreign and Bulgarian specialists (e.g. Ivan Buresh, director from 1913 to 1947) serving as its directors until 1947, when the museum became part of the Bulgarian Academy of Sciences' Zoological Institute. The museum became autonomous as a separate institute within the system of BAS in 1974. In 1992, the Asenovgra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Millipedes Of Oceania
Millipedes (originating from the Latin , "thousand", and , "foot") are a group of arthropods that are characterised by having two pairs of jointed arthropod leg, legs on most body segments; they are known scientifically as the class (biology), 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 Latin for "thousand feet", no species was known to have 1,000 or more until the discovery in 2020 of ''Eumillipes persephone'', which can have over 1,300 legs. There are approximately 12,000 named species classified into 16 order (biology), orders and around 140 family (biology), families, making Diplopoda the largest class of myriapods, an arthropod group which also includes centipedes and other multi-legged cr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doratodesmus Hispidus
''Doratodesmus hispidus'' is a species of flat-backed millipede in the family Haplodesmidae. This millipede is found in Papua New Guinea. This millipede is notable for featuring only 18 segments (counting the collum as the first segment and the telson as the last) in each sex rather than the 20 segments normally observed in the order Polydesmida. Discovery and distribution This species was first described in 1978 by the American zoologist Richard L. Hoffman. He based the original description of this species on an adult male holotype, four adult paratypes (two males and two females), and three immature specimens. These specimens were found in 1975 in the Selminum Tem cave on the Finim Tel plateau in the Western Province of Papua New Guinea. This species is still known only from this cave. The male holotype and paratypes including both sexes are deposited in the National Museum of Natural History in Sofia in Bulgaria. Taxonomy Hoffman originally described this species as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volvation
Volvation (from Latin ''volvere'' "roll", and the suffix ''-(a)tion''; sometimes called enrolment or conglobation), is a defensive behavior in certain animals, in which the animal rolls its own body into a ball, presenting only the hardest parts of its integument (the animal's "armor"), or its spines to predators. Among mammals, vertebrates like pangolins (Manidae) and hedgehogs (Erinaceidae) exhibit the ability to conglobate. Armadillos in the genus Tolypeutes (South American three-banded armadillos) are able to roll into a defensive ball; however the nine-banded armadillo and other species have too many plates.. Earthworms may volvate during periods of extreme heat or drought. Among pill millipedes, volvation is both a protection against external threats and against dehydration. At least eight families of flat-backed millipedes are known to practice true volvation, they are referred to as ''oniscoid'' (woodlouse-like). The pauropod family Sphaeropauropodidae has the ability ... [...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 arthropod leg, 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 transferr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tergum
A ''tergum'' (Latin for "the back"; : ''terga'', associated adjective tergal) is the dorsal ('upper') portion of an arthropod Arthropods ( ) are invertebrates in the phylum Arthropoda. They possess an arthropod exoskeleton, exoskeleton with a cuticle made of chitin, often Mineralization (biology), mineralised with calcium carbonate, a body with differentiated (Metam ... segment other than the head. The anterior edge is called the 'base' and posterior edge is called the 'apex' or 'margin'. A given tergum may be divided into hardened plates or sclerites commonly referred to as tergites. In a thoracic segment, for example, the tergum may be divided into an anterior notum and a posterior scutellum. Lateral extensions of a tergite are known as paranota (Greek for "alongside the back") or ''carinae'' (Latin for "keel"), exemplified by the flat-backed millipedes of the order Polydesmida. Kinorhynchs have tergal and sternal plates too, though seemingly not homologous with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antenna (zoology)
An antenna (plural: antennae) is one of a pair of appendages used for Sensory system, sensing in arthropods. Antennae are sometimes referred to as ''feelers''. 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 i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doratodesmus
''Doratodesmus'' is a is a genus of flat-backed millipedes in the family Haplodesmidae. These millipedes are found in China, Indonesia, and Papua New Guinea. This genus includes two species that are notable for including adult males with only 18 segments (counting the collum as the first and the telson as the last) rather than the 20 segments normally observed in the order Polydesmida: '' D. hispidus'' features only 18 segments in adults of each sex, whereas '' D. pholeter'' exhibits sexual dimorphism in segment number, with 19 segments in adult females but only 18 segments in adult males. Discovery, taxonomy, and distribution The American biologist Orator F. Cook proposed the name ''Doratodesmus'' in 1895 for two species previously described under the name ''Doratonotus'', which was already occupied. In 1894, the British zoologist Reginald I. Pocock described the type species ''Doratonotus armatus'' as a new species discovered on the island of Java in Indonesia. In 1895, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synonym (taxonomy)
In taxonomy, the scientific classification of living organisms, a synonym is an alternative scientific name for the accepted scientific name of a taxon. The Botanical nomenclature, botanical and Zoological nomenclature, zoological codes of nomenclature treat the concept of synonymy differently. * In nomenclature, botanical nomenclature, a synonym is a Binomial nomenclature, scientific name that applies to a taxon that now goes by a different scientific name. For example, Carl Linnaeus, Linnaeus was the first to give a scientific name (under the currently used system of scientific nomenclature) to the Norway spruce, which he called ''Pinus abies''. This name is no longer in use, so it is now a synonym of the current scientific name, ''Picea abies''. * In zoology, moving a species from one genus to another results in a different Binomial nomenclature, binomen, but the name is considered an alternative combination rather than a synonym. The concept of synonymy in zoology is reserved f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic Taxon
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of Genus, genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. Theoretical implications Monotypic taxa present several important theoretical challenges in biological classification. One key issue is known as "Gregg's Paradox": if a single species is the only member of multiple hierarchical levels (for example, being the only species in its genus, which is the only genus in its family), then each level needs a distinct definition to maintain logical structure. Otherwise, the different taxonomic ranks become effectively identical, which creates problems for organizing biological diversity in a hierarchical o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
