Uropygi


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Related to Uropygi: whip scorpion
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Synonyms for Uropygi

References in periodicals archive ?
Diel activity patterns and diet of the giant whipscorpion Mastigoproctus giganteus (Lucas) (Arachnida, Uropygi) in Big Bend National Park (Chihuahuan Desert).
Diel activity patterns of the giant whipscorpion, Mastigoproctus giganteus (Lucas) (Arachnida, Uropygi).
Chemistry, ontogeny, and the role of the pygidial gland secretions of the vinegaroon Masrigiprocuss giganteus (Arachnida, Uropygi).
Geralinura carbonaria (Arachnida; Uropygi) from Mazon Creek, Illinois, USA, and the origin of subchelate pedipalps in whip scorpions.
Group Paleozoic Mesozoic Cenozoic Total Pycnogonida 6 3 -- 9 "Euchelicerata" 5 -- -- 5 Xiphosura 75 20 1 96 Chasmataspidida 8 -- -- 8 Eurypterida 241 -- -- 241 Scorpiones 79 16 16 111 Opiliones 7 1 17 25 Phalangiotarbida 30 -- -- 30 Pseudoscorpiones 1 2 35 38 Solifugae 2 1 2 5 Acari: Anactinotrichida -- 1 10 11 Acari: Actinotrichida 15 15 253 283 Palpigradi -- -- 1 1 Ricinulei 15 -- -- 15 "Pantetrapulmonata" 3 -- -- 3 Trigonotarbida 71 -- -- 71 Araneae 18 31 930 979 Haptopoda 1 -- -- 1 Amblypygi 5 1 3 9 Uropygi 6 1 -- 7 Schizomida -- -- 4 4 all Chelicerata 588 92 1272 1952 Arachnida only 253 69 1271 1593 Table 2.--Significant localities yielding fossil Chelicerata referred to in the text, including details of their stratigraphic position and approximate age in millions of years (Ma).
The putative fossil whipscorpion Thelyphonus hadleyi Pierce 1945 (Arachnida: Uropygi) from the middle to late Miocene Monterey Formation of Cabrillo Beach, San Pedro, California is reassessed.
Novedades aracnologicas de Republica Dominicana (Arachnida: Amblypgyi, Schizomida, Solpugida, Uropygi).
AF005445 Uropygi Mastigoproctus giganteus AF005446 (Lucas 1835) Schizomida Stenochrus portoricensis AF005444 Chamberlin 1922 Ricinulei Pseudocellus pearsei U91489 (Chamberlin & Ivie 1938) Palpigradi Eukoenenia sp.
The peripheral giant cell bodies and sensory synapses found in whip spiders (Amblypygi), whip scorpions (Uropygi), and harvestmen (Opiliones) are rare, and to date this type of neural architecture has only been found in a few cases within the animal kingdom (Foelix 1975; Foelix & Troyer 1980).
Most arachnid orders have species that we characterize as "transient subsocial." They exhibit early parental care with maternal (and in opilionids paternal) defense of eggs, as well as a brief association of newly emerged young (first and rarely second instar) with their mother prior to independent foraging and explosive dispersal from the natal nest (Table 1: Uropygi (Thelyphonida), Amblypygi, Schizomida, some Araneae, Pseudoscorpiones, Scorpiones, Acari, Solfugae, Opiliones).
Whipscorpions (Arachnida, Uropygi) are found worldwide, from southeastern Asia, Indonesia, Australia, New Zealand, India, the whole of Africa and Europe, as well as North and South America (Pocock 1895; Haupt 2000).
Los aracnidos de Mexico parte 1: Ricinulei, Amblypygi, Solifugae, Palpigradi, Schizomida, Uropygi. Dugesiana 2: 15-17.
However, the axoneme of spider spermatozoa is characterized by an exceptional 9 + 3 microtubular pattern, which is known as a synapomorphy of the Megoperculata (Amblypygi, Uropygi and Araneae).