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Tugana Cavatica
''Tugana'' is a genus of Caribbean tangled nest spiders first described by R. V. Chamberlin in 1948. Species it contains four species, found in Cuba and Hispaniola: *'' Tugana cavatica'' (Bryant, 1940) – Cuba *''Tugana crassa ''Tugana'' is a genus of Caribbean tangled nest spiders first described by R. V. Chamberlin in 1948. Species it contains four species, found in Cuba and Hispaniola Hispaniola (, also ; es, La Española; Latin and french: Hispaniola; ...'' (Bryant, 1948) – Hispaniola *'' Tugana cudina'' Alayón, 1992 – Cuba *'' Tugana infumata'' (Bryant, 1948) – Hispaniola References Amaurobiidae Araneomorphae genera Spiders of the Caribbean Arthropods of the Dominican Republic {{Amaurobiidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can reproduction, produce Fertility, fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tugana Cavatica
''Tugana'' is a genus of Caribbean tangled nest spiders first described by R. V. Chamberlin in 1948. Species it contains four species, found in Cuba and Hispaniola: *'' Tugana cavatica'' (Bryant, 1940) – Cuba *''Tugana crassa ''Tugana'' is a genus of Caribbean tangled nest spiders first described by R. V. Chamberlin in 1948. Species it contains four species, found in Cuba and Hispaniola Hispaniola (, also ; es, La Española; Latin and french: Hispaniola; ...'' (Bryant, 1948) – Hispaniola *'' Tugana cudina'' Alayón, 1992 – Cuba *'' Tugana infumata'' (Bryant, 1948) – Hispaniola References Amaurobiidae Araneomorphae genera Spiders of the Caribbean Arthropods of the Dominican Republic {{Amaurobiidae-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 c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caribbean
The Caribbean (, ) ( es, El Caribe; french: la Caraïbe; ht, Karayib; nl, De Caraïben) is a region of the Americas that consists of the Caribbean Sea, its islands (some surrounded by the Caribbean Sea and some bordering both the Caribbean Sea and the North Atlantic Ocean) and the surrounding coasts. The region is southeast of the Gulf of Mexico and the North American mainland, east of Central America, and north of South America. Situated largely on the Caribbean Plate, the region has more than 700 islands, islets, reefs and cays (see the list of Caribbean islands). Island arcs delineate the eastern and northern edges of the Caribbean Sea: The Greater Antilles and the Lucayan Archipelago on the north and the Lesser Antilles and the on the south and east (which includes the Leeward Antilles). They form the West Indies with the nearby Lucayan Archipelago ( the Bahamas and Turks and Caicos Islands), which are considered to be part of the Caribbean despite not borde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amaurobiidae
''Amaurobiidae'' is a family of three-clawed cribellate or ecribellate spiders found in crevices and hollows or under stones where they build retreats, and are often collected in pitfall traps. Unlidded burrows are sometimes quite obvious in crusty, loamy soil. They are difficult to distinguish from related spiders in other families, especially Agelenidae, Desidae and Amphinectidae. Their intra- and interfamilial relationships are contentious. According to the World Spider Catalog, 2019, the family Amaurobiidae includes about 275 species in 49 genera. In Australia, they are small to medium-sized entelegyne spiders with minimal sheet webs. They are fairly common in Tasmania and nearby mainland Australia in cooler rainforest, some in caves. They are widespread but uncommon along the eastern coastline. They generally have eight similar eyes in two conservatively curved rows. They often have a calamistrum on metatarsus IV associated with a cribellum. Australian amaurobiids may ... [...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, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuba
Cuba ( , ), officially the Republic of Cuba ( es, República de Cuba, links=no ), is an island country comprising the island of Cuba, as well as Isla de la Juventud and several minor archipelagos. Cuba is located where the northern Caribbean Sea, Gulf of Mexico, and Atlantic Ocean meet. Cuba is located east of the Yucatán Peninsula (Mexico), south of both the American state of Florida and the Bahamas, west of Hispaniola (Haiti/Dominican Republic), and north of both Jamaica and the Cayman Islands. Havana is the largest city and capital; other major cities include Santiago de Cuba and Camagüey. The official area of the Republic of Cuba is (without the territorial waters) but a total of 350,730 km² (135,418 sq mi) including the exclusive economic zone. Cuba is the second-most populous country in the Caribbean after Haiti, with over 11 million inhabitants. The territory that is now Cuba was inhabited by the Ciboney people from the 4th millennium BC with the Gua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hispaniola
Hispaniola (, also ; es, La Española; Latin and french: Hispaniola; ht, Ispayola; tnq, Ayiti or Quisqueya) is an island in the Caribbean that is part of the Greater Antilles. Hispaniola is the most populous island in the West Indies, and the region's second largest in area, after the island of Cuba. The island is divided into two separate nations: the Spanish-speaking Dominican Republic (48,445 km2, 18,705 sq mi) to the east and the French/ Haitian Creole-speaking Haiti (27,750 km2, 10,710 sq mi) to the west. The only other divided island in the Caribbean is Saint Martin, which is shared between France (Saint Martin) and the Netherlands (Sint Maarten). Hispaniola is the site of one of the first European settlements in the Americas, La Navidad (1492–1493), as well as the first proper town, La Isabela (1493–1500), and the first permanent settlement, the current capital of the Dominican Republic, Santo Domingo (est. 1498). These settlements were founded succ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tugana Crassa
''Tugana'' is a genus of Caribbean tangled nest spiders first described by R. V. Chamberlin in 1948. Species it contains four species, found in Cuba and Hispaniola Hispaniola (, also ; es, La Española; Latin and french: Hispaniola; ht, Ispayola; tnq, Ayiti or Quisqueya) is an island in the Caribbean that is part of the Greater Antilles. Hispaniola is the most populous island in the West Indies, and th ...: *'' Tugana cavatica'' (Bryant, 1940) – Cuba *'' Tugana crassa'' (Bryant, 1948) – Hispaniola *'' Tugana cudina'' Alayón, 1992 – Cuba *'' Tugana infumata'' (Bryant, 1948) – Hispaniola References Amaurobiidae Araneomorphae genera Spiders of the Caribbean Arthropods of the Dominican Republic {{Amaurobiidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tugana Cudina
''Tugana'' is a genus of Caribbean tangled nest spiders first described by R. V. Chamberlin in 1948. Species it contains four species, found in Cuba and Hispaniola: *''Tugana cavatica'' (Bryant, 1940) – Cuba *''Tugana crassa ''Tugana'' is a genus of Caribbean tangled nest spiders first described by R. V. Chamberlin in 1948. Species it contains four species, found in Cuba and Hispaniola Hispaniola (, also ; es, La Española; Latin and french: Hispaniola; ...'' (Bryant, 1948) – Hispaniola *'' Tugana cudina'' Alayón, 1992 – Cuba *'' Tugana infumata'' (Bryant, 1948) – Hispaniola References Amaurobiidae Araneomorphae genera Spiders of the Caribbean Arthropods of the Dominican Republic {{Amaurobiidae-stub ... [...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. Imag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
