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Hesperentomidae
The Hesperentomidae are a family of hexapods in the order Protura The Protura, or proturans, and sometimes nicknamed coneheads, are very small (0.6-1.5mm long), soil-dwelling animals, so inconspicuous they were not noticed until the 20th century. The Protura constitute an order of hexapods that were previously .... Genera * '' Hesperentomon'' Price, 1960 * '' Huhentomon'' Yin, 1977 * '' Ionescuellum'' Tuxen, 1960 References Protura Arthropod families {{Protura-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthropod
Arthropods (, (gen. ποδός)) are invertebrate animals with an exoskeleton, a segmented body, and paired jointed appendages. Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and cuticle made of chitin, often 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 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 organs; it has an open circulatory system. Like their exteriors, the internal organs of arthropods are generally built of repeated segments. Their nervous system is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexapoda
The subphylum Hexapoda (from Greek for 'six legs') comprises most species of arthropods and includes the insects as well as three much smaller groups of wingless arthropods: Collembola, Protura, and Diplura (all of these were once considered insects). The Collembola (or springtails) are very abundant in terrestrial environments. ''Hexapods'' are named for their most distinctive feature: a consolidated thorax with three pairs of legs (six legs). Most other arthropods have more than three pairs of legs. Most recent studies have recovered Hexapoda as a subgroup of Crustacea. Morphology Hexapods have bodies ranging in length from 0.5 mm to over 300 mm which are divided into an anterior head, thorax, and posterior abdomen. The head is composed of a presegmental ''acron'' that usually bears eyes (absent in Protura and Diplura), followed by six segments, all closely fused together, with the following appendages: :Segment I. None :Segment II. Antennae (sensory), absent in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Entognatha
The Entognatha are a class of wingless and ametabolous arthropods, which, together with the insects, makes up the subphylum Hexapoda. Their mouthparts are entognathous, meaning that they are retracted within the head, unlike the insects. Entognatha are apterous, meaning that they lack wings. The class contains three orders: Collembola (springtails, 9000 species), Diplura (“two-tail”, 1000 species) and Protura (“first-tail”, 800 species). These three groups were historically united with the now-obsolete order Thysanura to form the class Apterygota, but it has since been recognized that the hexapodous condition of these animals has evolved independently from that of insects, and independently ''within'' each order. The orders may not be closely related, and Entognatha is now considered to be a polyphyletic group. Morphology These minute arthropods are apterous, unlike some orders of insects that have lost their wings secondarily (but are derived from winged ancestors ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protura
The Protura, or proturans, and sometimes nicknamed coneheads, are very small (0.6-1.5mm long), soil-dwelling animals, so inconspicuous they were not noticed until the 20th century. The Protura constitute an order of hexapods that were previously regarded as insects, and sometimes treated as a class in their own right. Some evidence indicates the Protura are basal to all other hexapods, although not all researchers consider them Hexapoda, rendering the monophyly of Hexapoda unsettled. Uniquely among hexapods, proturans show anamorphic development, whereby body segments are added during moults. There are close to 800 species, described in seven families. Nearly 300 species are contained in a single genus, ''Eosentomon''. Morphology Proturans have no eyes, wings, or antennae, and, lacking pigmentation, are usually white or pale brown. The sensory function of the antennae is fulfilled by the first of three pairs of five-segmented legs, which are held up, pointing forward and ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Texas A&M University
Texas A&M University (Texas A&M, A&M, or TAMU) is a public, land-grant, research university in College Station, Texas. It was founded in 1876 and became the flagship institution of the Texas A&M University System in 1948. As of late 2021, Texas A&M has the largest student body in the United States, and is the only university in Texas to hold simultaneous designations as a land, sea, and space grant institution. In 2001, it was inducted into the Association of American Universities. The university's students, alumni, and sports teams are known as Aggies, and its athletes compete in eighteen varsity sports as a member of the Southeastern Conference. The university was the first public higher-education institution in Texas; it opened for classes on October 4, 1876, as the Agricultural and Mechanical College of Texas (A.M.C.) under the provisions of the 1862 Morrill Land-Grant Act. In the following decades, the college grew in size and scope, expanding to its largest enrol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hesperentomon
''Hesperentomon'' is a genus of proturans in the family Hesperentomidae The Hesperentomidae are a family of hexapods in the order Protura The Protura, or proturans, and sometimes nicknamed coneheads, are very small (0.6-1.5mm long), soil-dwelling animals, so inconspicuous they were not noticed until the 20th centur .... Species * '' Hesperentomon chinghaiense'' Yin, 1982 * '' Hesperentomon dianicum'' Yin, Xie & Imadaté, 1994 * '' Hesperentomon dunhuaense'' Bu, Shrubovych & Yin, 2011Bu, Y., Shrubovych, J., & Yin, W.Y. (2011). "Two new species of genus ''Hesperentomon'' Price, 1960 (Protura, Hesperentomidae) from Northern China." ''Zootaxa'' 2885: 55-64. * '' Hesperentomon fopingense'' Bu, Shrubovych & Yin, 2011 * '' Hesperentomon guiyangense'' Tang & Yin, 1991 * ''Hesperentomon huashanense'' Yin, 1982 * '' Hesperentomon kangdingense'' Tang & Yin, 1988 * '' Hesperentomon kuratai'' Imadaté, 1989 * '' Hesperentomon macswaini'' Price, 1960 * '' Hesperentomon martynovae'' Szeptyc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huhentomon
''Huhentomon'' is a genus of proturans in the family Hesperentomidae The Hesperentomidae are a family of hexapods in the order Protura The Protura, or proturans, and sometimes nicknamed coneheads, are very small (0.6-1.5mm long), soil-dwelling animals, so inconspicuous they were not noticed until the 20th centur ... found in China and Japan. There is one species in this genus, ''Huhentomon plicatunguis''. Species * ''Huhentomon plicatunguis'' Yin, 1977 ** ''Huhentomon plicatunguis haradai'' Imadaté, 1989 ** ''Huhentomon plicatunguis plicatunguis'' Yin, 1977 References Protura {{Protura-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ionescuellum
''Ionescuellum'' is a genus of proturans in the family Hesperentomidae The Hesperentomidae are a family of hexapods in the order Protura The Protura, or proturans, and sometimes nicknamed coneheads, are very small (0.6-1.5mm long), soil-dwelling animals, so inconspicuous they were not noticed until the 20th centur ..., found in Europe. Species * '' Ionescuellum carpaticum'' (Ionesco, 1930) * '' Ionescuellum condei'' (Nosek, 1965) * '' Ionescuellum haybachae'' (Nosek, 1967) * '' Ionescuellum montanum'' (Gisin, 1945) * '' Ionescuellum pseudocarpaticum'' (Nosek, 1986) * '' Ionescuellum schusteri'' (Nosek, 1977) * '' Ionescuellum silvaticum'' (Rusek, 1965) * '' Ionescuellum ulmiacum'' Rusek & Stumpp, 1989 References Protura {{Protura-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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