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Crosbycus Dasycnemus
''Crosbycus dasycnemus'' is a species in the order Opiliones ("harvestmen"), in the class Arachnida ("arachnids"). ''Crosbycus dasycnemus'' is found in North America. References Further reading * Schönhofer, Axel L. (2013). A Taxonomic Catalogue of the Dyspnoi Hansen and Sørensen, 1904 (Arachnida: Opiliones). * Shear, William A. (2008). Deletions from the North American harvestman (Opiliones) faunal list: Phalangomma virginicum Roewer, 1949 is a synonym of Erebomaster weyerensis (Packard, 1888) (Travunioidea: Cladonychiidae), and a note on "Crosbycus" goodnightorum Roewer, 1951.... Harvestmen {{harvestmen-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animalia
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have 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#Bilateral symmetry, bilaterally symmetric body plan. The Bilateria include the protostomes, containing animals such as nematodes, arthropods, flatworms, annelids and molluscs, and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthropoda
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chelicerata
The subphylum Chelicerata (from New Latin, , ) constitutes one of the major subdivisions of the phylum Arthropoda. It contains the sea spiders, horseshoe crabs, and arachnids (including harvestmen, scorpions, spiders, solifuges, ticks, and mites, among many others), as well as a number of extinct lineages, such as the eurypterids (sea scorpions) and chasmataspidids. The Chelicerata originated as marine animals in the Middle Cambrian period; the first confirmed chelicerate fossils, belonging to ''Sanctacaris'', date from 508 million years ago. The surviving marine species include the four species of xiphosurans (horseshoe crabs), and possibly the 1,300 species of pycnogonids (sea spiders), if the latter are indeed chelicerates. On the other hand, there are over 77,000 well-identified species of air-breathing chelicerates, and there may be about 500,000 unidentified species. Like all arthropods, chelicerates have segmented bodies with jointed limbs, all covered i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arachnida
Arachnida () is a Class (biology), class of joint-legged invertebrate animals (arthropods), in the subphylum Chelicerata. Arachnida includes, among others, spiders, scorpions, ticks, mites, pseudoscorpions, opiliones, harvestmen, Solifugae, camel spiders, Amblypygi, whip spiders and Thelyphonida, vinegaroons. Almost all adult arachnids have eight Arthropod leg, legs, although the front pair of legs in some species has converted to a sensory function, while in other species, different appendages can grow large enough to take on the appearance of extra pairs of legs. The term is derived from the Ancient Greek, Greek word (''aráchnē'', 'spider'), from the myth of the hubristic human weaver Arachne, who was turned into a spider. Almost all Extant taxon, extant arachnids are terrestrial animal, terrestrial, living mainly on land. However, some inhabit freshwater environments and, with the exception of the pelagic zone, marine environments as well. They comprise over 100,000 named ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opiliones
The Opiliones (formerly Phalangida) are an order of arachnids colloquially known as harvestmen, harvesters, harvest spiders, or daddy longlegs. , over 6,650 species of harvestmen have been discovered worldwide, although the total number of extant species may exceed 10,000. The order Opiliones includes five suborders: Cyphophthalmi, Eupnoi, Dyspnoi, Laniatores, and Tetrophthalmi, which were named in 2014. Representatives of each extant suborder can be found on all continents except Antarctica. Well-preserved fossils have been found in the 400-million-year-old Rhynie cherts of Scotland, and 305-million-year-old rocks in France. These fossils look surprisingly modern, indicating that their basic body shape developed very early on, and, at least in some taxa, has changed little since that time. Their phylogenetic position within the Arachnida is disputed; their closest relatives may be the mites ( Acari) or the Novogenuata (the Scorpiones, Pseudoscorpiones, and Solifuga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dyspnoi
Dyspnoi is a suborder of harvestmen, currently comprising 43 extant genera and 356 extant species, although more species are expected to be described in the future. The eight families are currently grouped into three superfamilies: the Acropsopilionoidea, Ischyropsalidioidea, and Troguloidea. Distribution The Dyspnoi are one of the most biogeographically conserved higher groups of harvestmen. With the exception of Acropsopilioidea, none occur in the Southern Hemisphere, and most families are restricted along temperate regions. The only exceptions are some Ortholasmatinae (Nemastomatidae) inhabiting the tropics on high mountains in Mexico ('' Ortholasma bolivari'') and northern Thailand ('' Dendrolasma angka''). Systematics * Acropsopilionoidea ** Acropsopilionidae (3 genera, 19 species) * Ischyropsalidoidea **Ischyropsalidoidea ''Incertae sedis'' ***'' Crosbycus dasycnemus'' ***''Hesperonemastoma'' (5 species) **Ischyropsalididae *** Ceratolasmatinae (2 genera, 8 species) *** ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taracidae
Taracidae is a family of harvestmen in the order Opiliones. There are 4 genera and 23 described species in Taracidae. Species There are currently 23 described species of Taracidae, listed below. The genera ''Crosbycus'' and ''Hesperonemastoma'' are not considered to belong to the family by some, though a new family has not yet been erected for those genera, so they are included here. * '' Crosbycus'' Roewer, 1914 **'' Crosbycus dasycnemus'' (Crosby, 1911) * '' Hesperonemastoma'' Gruber, 1970 **'' Hesperonemastoma kepharti'' (Crosby & Bishop, 1924) ** '' Hesperonemastoma modestum'' (Banks, 1894) ** '' Hesperonemastoma packardi'' (Roewer, 1914) ** '' Hesperonemastoma pallidimaculosum'' (Goodnight & Goodnight, 1945) ** '' Hesperonemastoma smilax'' Shear, 2010 * '' Oskoron'' Shear, 2016 **'' Oskoron brevichelis'' Shear, 2016 ** '' Oskoron crawfordi'' Shear, 2016 ** '' Oskoron spinosus'' (Banks, 1894) * '' Taracus'' Simon, 1879 ** '' Taracus aspenae'' Shear, 2018 ** '' Taracus audis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crosbycus
''Crosbycus dasycnemus'' is a species in the order Opiliones ("harvestmen"), in the class Arachnida ("arachnids"). ''Crosbycus dasycnemus'' is found in North America. References Further reading * Schönhofer, Axel L. (2013). A Taxonomic Catalogue of the Dyspnoi Hansen and Sørensen, 1904 (Arachnida: Opiliones). * Shear, William A. (2008). Deletions from the North American harvestman (Opiliones) faunal list: Phalangomma virginicum Roewer, 1949 is a synonym of Erebomaster weyerensis (Packard, 1888) (Travunioidea: Cladonychiidae), and a note on "Crosbycus" goodnightorum Roewer, 1951.... Harvestmen {{harvestmen-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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