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Spintharus Berniesandersi
''Spintharus berniesandersi'' is a species of ''Spintharus'' ("smiley-faced spiders") in the family Theridiidae. It is endemic to Cuba. It was described in 2018 by and Lily Sargeant of the University of Vermont in a revision of the genus by Agnarsson and colleagues. ''S. berniesandersi'' was discovered alongside 14 other species of smiley-faced spiders. This revision is in contrast to Herbert Walter Levi's taxonomy, which considered it to be intraspecific variation within ''Spintharus flavidus''. Distribution The specimens mentioned in the original species description all came from Cuba. The holotype was collected in Mensura-Piloto National Park, near Mayarí, Holguín Province. Additional specimens were collected from El Yunque Mountain, near Baracoa, Guantánamo Province and Gran Piedra, Santiago de Cuba Province. Description The species has a lemon-yellow colour and the female abdomen lacks humps and is nearly oval. On the spider's back is an ornate pattern halfway between a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spintharus
The spider genus ''Spintharus'' occurs from the northeastern United States to Brazil. Nicholas Marcellus Hentz circumscribed the genus in 1850, initially as a monospecific genus containing his newly described species ''S. flavidus''. It is very similar to the genus '' Thwaitesia'', and both are similar to '' Episinus''. Unlike ''Argyrodes'', they have two setae in place of a colulus. Specimens of ''S. flavidus'' are variable in structure. Only some have an elevated eye region or humps on the anterior of the abdomen. Females of ''S. gracilis'' are 3.7mm long, males 2.3mm. A revision of the genus by and colleagues printed in 2018 included the description of fifteen new species, as well as the removal of ''S. argenteus''. Some of the new specific names were named in honor of political figures, artists, and celebrities. As of 2017, when the electronic pre-print was published, ''Spintharus'' was the spider genus with the most species named after celebrities. An earlier revisio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guantánamo Province
Guantánamo is the easternmost province of Cuba. Its capital is also called Guantánamo. Other towns include Baracoa. The province has the only land border of the U.S. Navy base at Guantánamo Bay. Overview Guantánamo's architecture and culture is unlike the rest of Cuba. The province is only away from Haiti at its closest point, across the Windward Passage (close enough to see lights on Haiti on a clear night). Guantánamo also has a high number of immigrants from Jamaica. Many buildings are comparable to those of the French Quarter of New Orleans in the U.S. state of Louisiana. The Nipe-Sagua-Baracoa mountains dominate the province, dividing both climate and landscape. The northern coast, battered by prevailing winds, is the wettest part of the country, while the south, sheltered and dry, is the hottest. The north is characterized by rainforests, while the south is arid and has many cacti. Municipalities # Baracoa # Caimanera #El Salvador # Guantánamo #Imías # Mais ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthropods Of Cuba
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 "ladder-li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spiders Described In 2018
Spiders (order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species diversity among all orders of organisms. Spiders are found worldwide on every continent except for Antarctica, and have become established in nearly every land habitat. , 50,356 spider species in 132 families have been recorded by taxonomists. However, there has been debate among scientists about how families should be classified, with over 20 different classifications proposed since 1900. Anatomically, spiders (as with all arachnids) differ from other arthropods in that the usual body segments are fused into two tagmata, the cephalothorax or prosoma, and the opisthosoma, or abdomen, and joined by a small, cylindrical pedicel, however, as there is currently neither paleontological nor embryological evidence that spiders ever had a separate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Organisms Named After Famous People (born 1900–1949)
In biological nomenclature, organisms often receive scientific names that honor a person. A taxon (e.g. species or genus; plural: taxa) named in honor of another entity is an eponymous taxon, and names specifically honoring a person or persons are known as patronyms. Scientific names are generally formally published in peer-reviewed journal articles or larger monographs along with descriptions of the named taxa and ways to distinguish them from other taxa. Following rules of Latin grammar, species or subspecies names derived from a man's name often end in ''-i'' or ''-ii'' if named for an individual, and ''-orum'' if named for a group of men or mixed-sex group, such as a family. Similarly, those named for a woman often end in ''-ae'', or ''-arum'' for two or more women. This list is part of the List of organisms named after famous people, and includes organisms named after famous individuals born between 1 January 1900 and 31 December 1949. It also includes ensembles (including b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bernie Sanders
Bernard Sanders (born September8, 1941) is an American politician who has served as the junior United States senator from Vermont since 2007. He was the U.S. representative for the state's at-large congressional district from 1991 to 2007. Sanders is the longest-serving independent in U.S. congressional history. He has a close relationship with the Democratic Party, having caucused with House and Senate Democrats for most of his congressional career. He is often seen as a leader of the democratic socialist movement in the United States. Sanders unsuccessfully sought the Democratic Party nomination for president of the United States in 2016 and 2020, finishing in second place in both campaigns. Before his election to Congress, he was mayor of Burlington, Vermont. Born into a working-class Jewish family and raised in the Brooklyn borough of New York City, Sanders attended Brooklyn College before graduating from the University of Chicago in 1964. While a student, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitochondrial DNA
Mitochondrial DNA (mtDNA or mDNA) is the DNA located in mitochondria, cellular organelles within eukaryotic cells that convert chemical energy from food into a form that cells can use, such as adenosine triphosphate (ATP). Mitochondrial DNA is only a small portion of the DNA in a eukaryotic cell; most of the DNA can be found in the cell nucleus and, in plants and algae, also in plastids such as chloroplasts. Human mitochondrial DNA was the first significant part of the human genome to be sequenced. This sequencing revealed that the human mtDNA includes 16,569 base pairs and encodes 13 proteins. Since animal mtDNA evolves faster than nuclear genetic markers, it represents a mainstay of phylogenetics and evolutionary biology. It also permits an examination of the relatedness of populations, and so has become important in anthropology and biogeography. Origin Nuclear and mitochondrial DNA are thought to be of separate evolutionary origin, with the mtDNA being deri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Femur
The femur (; ), or thigh bone, is the proximal bone of the hindlimb in tetrapod vertebrates. The head of the femur articulates with the acetabulum in the pelvic bone forming the hip joint, while the distal part of the femur articulates with the tibia (shinbone) and patella (kneecap), forming the knee joint. By most measures the two (left and right) femurs are the strongest bones of the body, and in humans, the largest and thickest. Structure The femur is the only bone in the upper leg. The two femurs converge medially toward the knees, where they articulate with the proximal ends of the tibiae. The angle of convergence of the femora is a major factor in determining the femoral-tibial angle. Human females have thicker pelvic bones, causing their femora to converge more than in males. In the condition ''genu valgum'' (knock knee) the femurs converge so much that the knees touch one another. The opposite extreme is ''genu varum'' (bow-leggedness). In the general pop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cephalothorax
The cephalothorax, also called prosoma in some groups, is a tagma of various arthropods, comprising the head and the thorax fused together, as distinct from the abdomen behind. (The terms ''prosoma'' and ''opisthosoma'' are equivalent to ''cephalothorax'' and ''abdomen'' in some groups.) The word ''cephalothorax'' is derived from the Greek words for head (, ') and thorax (, '). This fusion of the head and thorax is seen in chelicerates and crustaceans; in other groups, such as the Hexapoda (including insects), the head remains free of the thorax. In horseshoe crabs and many crustaceans, a hard shell called the carapace covers the cephalothorax. Arachnid anatomy Fovea The fovea is the centre of the cephalothorax and is located behind the head (only in spiders).Dalton, Steve (2008). ''Spiders; The Ultimate Predators''. A & C Black, London. P.p. 19. . It is often important in identification. It can be transverse or procurved Smith, A. M. (1990c). Baboon spiders: Tarantulas of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spider Anatomy
The anatomy of spiders includes many characteristics shared with other arachnids. These characteristics include bodies divided into two tagmata (sections or segments), eight jointed legs, no wings or antennae, the presence of chelicerae and pedipalps, simple eyes, and an exoskeleton, which is periodically shed. Spiders also have several adaptations that distinguish them from other arachnids. All spiders are capable of producing silk of various types, which many species use to build webs to ensnare prey. Most spiders possess venom, which is injected into prey (or defensively, when the spider feels threatened) through the fangs of the chelicerae. Male spiders have specialized pedipalps that are used to transfer sperm to the female during mating. Many species of spiders exhibit a great deal of sexual dimorphism. External anatomy Spiders, unlike insects, have only two main body parts ( tagmata) instead of three: a fused head and thorax (called a cephalothorax or prosoma) an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Santiago De Cuba Province
Santiago de Cuba Province is the second most populated province in the island of Cuba. The largest city Santiago de Cuba is the main administrative center. Other large cities include Palma Soriano, Contramaestre, San Luis and Songo-la Maya. History Santiago de Cuba province has been the site of many battles, both during the war for independence and the 1959 Cuban Revolution, where much of the guerrilla fighting took place in the mountainous province. Prior to 1976, Cuba was divided into six historical provinces. One of these was Oriente province, which was, prior to 1905, known as Santiago de Cuba province. The present day province comprises the south-central region of Oriente. Economy The province is rich in material resources such as iron and nickel. The economy, however, relies mostly on agriculture, with large plantations growing bananas, cacao, and coffee dotting the landscape. Industry is growing around the capital, as is tourism. The natural environment of the provin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baconao
Baconao Park is a large park region, about 60 kilometers away from the city of Santiago de Cuba, with a total surface of . History The name Baconao is related to the name of a little native who lived in the south of Cuba during the pre-Columbian period. Legend mentions a magical tree, called ''bacona'', that allowed the child to play music from the lagoon's snails. This little Cuban was known for his fishing and swimming skills, as well as playing ''Batos'' (Cuban original baseball game). The child used to sit under the ''bacona'' tree to play music from his snail. Everybody in the village was fascinated, and thought that the ability to play the music was a gift from the magical tree. Therefore, they began to call the child ''Baconao''. One day, the young boy left the village for a trip, and never came back. The villagers believed that the child's magic returned to the trees, and as time passed, the whole area got the name ''Baconao''. In 1987, it was declared a World Heritag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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