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Tortolena Dela
''Tortolena'' is a genus of North American and Central American funnel weavers first described by R. V. Chamberlin & Wilton Ivie Vaine Wilton Ivie (March 28, 1907 – August 8, 1969) was an American arachnologist, who described hundreds of new species and many new genera of spiders, both under his own name and in collaboration with Ralph Vary Chamberlin. He was employed by ... in 1941. it contains only two species. References External links Agelenidae Araneomorphae genera Spiders of North America {{Agelenidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tortolena Dela
''Tortolena'' is a genus of North American and Central American funnel weavers first described by R. V. Chamberlin & Wilton Ivie Vaine Wilton Ivie (March 28, 1907 – August 8, 1969) was an American arachnologist, who described hundreds of new species and many new genera of spiders, both under his own name and in collaboration with Ralph Vary Chamberlin. He was employed by ... in 1941. it contains only two species. References External links Agelenidae Araneomorphae genera Spiders of North America {{Agelenidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tortolena Glaucopis
''Tortolena'' is a genus of North American and Central American funnel weavers first described by R. V. Chamberlin & Wilton Ivie Vaine Wilton Ivie (March 28, 1907 – August 8, 1969) was an American arachnologist, who described hundreds of new species and many new genera of spiders, both under his own name and in collaboration with Ralph Vary Chamberlin. He was employed by ... in 1941. it contains only two species. References External links Agelenidae Araneomorphae genera Spiders of North America {{Agelenidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. 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 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. phylogenetic analysis should cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North America
North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the west and south by the Pacific Ocean. Because it is on the North American Plate, North American Tectonic Plate, Greenland is included as a part of North America geographically. North America covers an area of about , about 16.5% of Earth's land area and about 4.8% of its total surface. North America is the third-largest continent by area, following Asia and Africa, and the list of continents and continental subregions by population, fourth by population after Asia, Africa, and Europe. In 2013, its population was estimated at nearly 579 million people in List of sovereign states and dependent territories in North America, 23 independent states, or about 7.5% of the world's population. In Americas (terminology)#Human ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central America
Central America ( es, América Central or ) is a subregion of the Americas. Its boundaries are defined as bordering the United States to the north, Colombia to the south, the Caribbean Sea to the east, and the Pacific Ocean to the west. Central America consists of eight countries: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, and Panama. Within Central America is the Mesoamerican biodiversity hotspot, which extends from northern Guatemala to central Panama. Due to the presence of several active geologic faults and the Central America Volcanic Arc, there is a high amount of seismic activity in the region, such as volcanic eruptions and earthquakes which has resulted in death, injury, and property damage. In the pre-Columbian era, Central America was inhabited by the indigenous peoples of Mesoamerica to the north and west and the Isthmo-Colombian peoples to the south and east. Following the Spanish expedition of Christopher Columbus' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agelenidae
The Agelenidae are a large family of spiders in the suborder Araneomorphae. Well-known examples include the common "grass spiders" of the genus ''Agelenopsis''. Nearly all Agelenidae are harmless to humans, but the bite of the hobo spider (''Eratigena agrestis'') may be medically significant, and some evidence suggests it might cause necrotic lesions, but the matter remains subject to debate. The most widely accepted common name for members of the family is funnel weaver. Description The body length of the smallest Agelenidae spiders are about , excluding the legs, while the larger species grow to long. Some exceptionally large species, such as '' Eratigena atrica'', may reach in total leg span. Agelenids have eight eyes in two horizontal rows of four. Their cephalothoraces narrow somewhat towards the front where the eyes are. Their abdomens are more or less oval, usually patterned with two rows of lines and spots. Some species have longitudinal lines on the dorsal surface of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ralph Vary Chamberlin
Ralph Vary Chamberlin (January 3, 1879October 31, 1967) was an American biologist, ethnographer, and historian from Salt Lake City, Utah. He was a faculty member of the University of Utah for over 25 years, where he helped establish the School of Medicine and served as its first dean, and later became head of the zoology department. He also taught at Brigham Young University and the University of Pennsylvania, and worked for over a decade at the Museum of Comparative Zoology at Harvard University, where he described species from around the world. Chamberlin was a prolific taxonomist who named over 4,000 new animal species in over 400 scientific publications. He specialized in arachnids (spiders, scorpions, and relatives) and myriapods (centipedes, millipedes, and relatives), ranking among the most prolific arachnologists and myriapodologists in history. He described over 1,400 species of spiders, 1,000 species of millipedes, and the majority of North American centipedes, altho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilton Ivie
Vaine Wilton Ivie (March 28, 1907 – August 8, 1969) was an American arachnologist, who described hundreds of new species and many new genera of spiders, both under his own name and in collaboration with Ralph Vary Chamberlin. He was employed by the American Museum of Natural History in New York. He also was a supporter of the Technocracy movement. Biography Wilton Ivie was born in Eureka, Utah on March 28, 1907. He attended the University of Utah earning a BSc in 1930 and an MSc in 1932, working under Ralph V. Chamberlin. He remained at Utah as an instructor in zoology from 1932 to 1947, during which time he continued to work on spiders. For the last nine years of his life he worked at the American Museum of Natural History. He died as a result of an auto accident in Kansas on 8 August 1969, during an expedition for the American Museum of Natural History. Taxonomic works Ivie published many texts of information on spiders, often with Chamberlin, for example, ''New tarantu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araneomorphae Genera
The Araneomorphae (also called the Labidognatha) are an infraorder of spiders. They are distinguishable by chelicerae (fangs) that point diagonally forward and cross in a pinching action, in contrast to the Mygalomorphae (tarantulas and their close kin), where they point straight down. Araneomorphs comprise the vast majority of living spiders. Distinguishing characteristics Most spider species are Araneomorphae, which have fangs that face towards each other, increasing the orientations they can employ during prey capture. They have fewer book lungs (when present), and the females typically live one year. The Mygalomorphae have fangs that face towards the ground, and which are parallel to the long axis of the spider's body, thus they have only one orientation they can employ during prey capture. They have four pairs of book lungs, and the females often live many years. Image:Atrax robustus.jpg, This '' Atrax robustus'' shows the orientation of Myglamorphae fangs. Image ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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