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Micromatta
''Micromatta'' is a monotypic genus of Central American araneomorph spiders in the family Tetrablemmidae found in Belize. It contains the single species, ''Micromatta atoma'', first described by W. A. Shear in 1978. Pekka T. Lehtinen transferred it to ''Micromatta'' in 1981 because the shapes of the male embolus and conductor are quite different than those of '' Matta'' and '' Caraimatta''. Additionally, the plesiomorphic structure of pedipalp segments prove that the three genera aren't a paraphyletic group. See also * List of Tetrablemmidae species This page lists all described species of the spider family Tetrablemmidae accepted by the World Spider Catalog : A ''Ablemma'' '' Ablemma'' Roewer, 1963 * '' A. aiyura'' Shear, 1978 — New Guinea * '' A. andriana'' Fardiansah & Dupérré, 2019 ... *'' Matta'' *'' Tetrablemma'' References Monotypic Araneomorphae genera Spiders of Central America Taxa named by Pekka T. Lehtinen Tetrablemmidae {{Tetrablemmidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Tetrablemmidae Species
This page lists all described species of the spider family Tetrablemmidae accepted by the World Spider Catalog : A ''Ablemma'' '' Ablemma'' Roewer, 1963 * '' A. aiyura'' Shear, 1978 — New Guinea * '' A. andriana'' Fardiansah & Dupérré, 2019 — Indonesia (Sumatra) * '' A. baso'' Roewer, 1963 ( type) — Indonesia (Sumatra) * '' A. berryi'' Shear, 1978 — Caroline Is. * '' A. circumspectans'' Deeleman-Reinhold, 1980 — Borneo * '' A. contrita'' Fardiansah & Dupérré, 2019 — Indonesia (Sumatra) * '' A. datahu'' Lehtinen, 1981 — Indonesia (Sulawesi) * '' A. erna'' Lehtinen, 1981 — Indonesia (Sumatra) * '' A. girinumu'' Lehtinen, 1981 — New Guinea * '' A. gombakense'' Wunderlich, 1995 — Malaysia * '' A. kaindi'' Lehtinen, 1981 — New Guinea ** ''A. k. avios'' Lehtinen, 1981 — New Guinea * '' A. kelinci'' Fardiansah & Dupérré, 2019 — Indonesia (Sumatra) * '' A. lempake'' Lehtinen, 1981 — Borneo * '' A. makiling'' Lehtinen, 1981 — Philippines * '' A. malacca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetrablemmidae
Tetrablemmidae, sometimes called armored spiders, is a family of tropical araneomorph spiders first described by Octavius Pickard-Cambridge in 1873. It contains 126 described species in 29 genera from southeast Asia, with a few that occur in Africa and Central and South America. Pacullidae was incorporated into this family in 1981, but was later restored as a separate family in a 2016 phylogenetic study. Most species have been collected from litter and soil, including that of epiphytes. Some live in caves and show typical adaptations of cave spiders, such as loss of eyes and weak sclerotization. Members of '' Tetrablemma'' only have four eyes, a trait in spiders only found in these and certain members of Caponiidae. Genera , the World Spider Catalog accepts the following genera: *'' Ablemma'' Roewer, 1963 — Papua New Guinea, Asia *'' Afroblemma'' Lehtinen, 1981 — Angola, Tanzania, Congo *'' Anansia'' Lehtinen, 1981 — Angola *'' Bacillemma'' Deeleman-Reinhold, 1993 — Tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pekka T
Pekka is a Finnish male given name. It was most popular around the middle of the 20th century. As of 2013 there were more than 100,000 people registered with this name in Finland. The nameday is the 29th of June in the Finnish tradition and the 25th of June on the orthodox calendar. It originated as a variation of the name Peter (''Pietari''). Notable people with this name include: * Pekka-Eric Auvinen (born 1989), perpetrator of the Jokela school shooting in 2007 * Pekka Haavisto (born 1958), Finnish politician and minister * Pekka Harttila (born 1941), Finnish diplomat and a lawyer * Pekka Heino (television presenter) (born 1961), Sweden television host and presenter * Pekka Heino (singer) (born 1976), Finnish metal singer * Pekka Himanen (born 1973), Finnish philosopher * Pekka Huhtaniemi (born 1949), Finnish diplomat * Pekka Koskela (born 1982), Finnish speed skater * Pekka Kuusisto (born 1976), Finnish violinist * Pekka Lagerblom (born 1982), Finnish footballer * Pekka T. Leht ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic Taxon
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. In contrast, an oligotypic taxon contains more than one but only a very few subordinate taxa. Examples Just as the term ''monotypic'' is used to describe a taxon including only one subdivision, the contained taxon can also be referred to as monotypic within the higher-level taxon, e.g. a genus monotypic within a family. Some examples of monotypic groups are: Plants * In the order Amborellales, there is only one family, Amborellaceae and there is only one genus, '' Amborella'', and in this genus there is only one species, namely ''Amborella trichopoda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), 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 taxonomy (biology), 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araneomorphae
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:Che ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belize
Belize (; bzj, Bileez) is a Caribbean and Central American country on the northeastern coast of Central America. It is bordered by Mexico to the north, the Caribbean Sea to the east, and Guatemala to the west and south. It also shares a water boundary with Honduras to the southeast. It has an area of and a population of 441,471 (2022). Its mainland is about long and wide. It is the least populated and least densely populated country in Central America. Its population growth rate of 1.87% per year (2018 estimate) is the second-highest in the region and one of the highest in the Western Hemisphere. Its capital is Belmopan, and its largest city is the namesake city of Belize City. Belize is often thought of as a Caribbean country in Central America because it has a history similar to that of English-speaking Caribbean nations. Indeed, Belize’s institutions and official language reflect its history as a British colony. The Maya civilization spread into the area of Beli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matta (spider)
''Matta'' is a genus of araneomorph spiders in the family Tetrablemmidae that was first described by C. R. Crosby in 1934. Species it contains ten species, found in Mexico and Brazil: *'' Matta angelomachadoi'' Brescovit, 2005 – Brazil *'' Matta cambito'' Brescovit & Cizauskas, 2019 – Brazil *'' Matta hambletoni'' Crosby, 1934 ( type) – Brazil *'' Matta humhum'' Brescovit & Cizauskas, 2019 – Brazil *'' Matta humrrum'' Brescovit & Cizauskas, 2019 – Brazil *'' Matta mckenziei'' Shear, 1978 – Mexico *'' Matta nuusga'' Brescovit & Cizauskas, 2019 – Brazil *'' Matta pititinha'' Brescovit & Cizauskas, 2019 – Brazil *'' Matta teteia'' Brescovit & Cizauskas, 2019 – Brazil *'' Matta zuiuda'' Brescovit & Cizauskas, 2019 – Brazil See also * List of Tetrablemmidae species This page lists all described species of the spider family Tetrablemmidae accepted by the World Spider Catalog : A ''Ablemma'' '' Ablemma'' Roewer, 1963 * '' A. aiyura'' Shear, 1978 — New Guinea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caraimatta
''Caraimatta'' is a genus of araneomorph spiders in the family Tetrablemmidae that was first described by Pekka T. Lehtinen in 1981. Species it contains four species, found in Central America, Jamaica, Cuba, Colombia, and Mexico: *'' Caraimatta blandini'' Lehtinen, 1981 – Mexico *'' Caraimatta brescoviti'' García, Martínez & Ahumada-C., 2019 – Colombia *'' Caraimatta cambridgei'' (Bryant, 1940) – Cuba, Jamaica, Mexico to Panama *'' Caraimatta sbordonii'' (Brignoli, 1972) (type) – Mexico, Guatemala See also * List of Tetrablemmidae species This page lists all described species of the spider family Tetrablemmidae accepted by the World Spider Catalog : A ''Ablemma'' '' Ablemma'' Roewer, 1963 * '' A. aiyura'' Shear, 1978 — New Guinea * '' A. andriana'' Fardiansah & Dupérré, 2019 ... References Araneomorphae genera Spiders of Central America Spiders of Mexico Spiders of the Caribbean Taxa named by Pekka T. Lehtinen Tetrablemmidae {{Tetrablemmidae-s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plesiomorphy And Symplesiomorphy
In phylogenetics, a plesiomorphy ("near form") and symplesiomorphy are synonyms for an ancestral character shared by all members of a clade, which does not distinguish the clade from other clades. Plesiomorphy, symplesiomorphy, apomorphy, and synapomorphy, all mean a trait shared between species because they share an ancestral species. Apomorphic and synapomorphic characteristics convey much information about evolutionary clades and can be used to define taxa. However, plesiomorphic and symplesiomorphic characteristics cannot. The term ''symplesiomorphy'' was introduced in 1950 by German entomologist Willi Hennig. Examples A backbone is a plesiomorphic trait shared by birds and mammals, and does not help in placing an animal in one or the other of these two clades. Birds and mammals share this trait because both clades are descended from the same far distant ancestor. Other clades, e.g. snakes, lizards, turtles, fish, frogs, all have backbones and none are either birds nor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paraphyly
In taxonomy, a group is paraphyletic if it consists of the group's last common ancestor and most of its descendants, excluding a few monophyletic subgroups. The group is said to be paraphyletic ''with respect to'' the excluded subgroups. In contrast, a monophyletic group (a clade) includes a common ancestor and ''all'' of its descendants. The terms are commonly used in phylogenetics (a subfield of biology) and in the tree model of historical linguistics. Paraphyletic groups are identified by a combination of synapomorphies and symplesiomorphies. If many subgroups are missing from the named group, it is said to be polyparaphyletic. The term was coined by Willi Hennig to apply to well-known taxa like Reptilia ( reptiles) which, as commonly named and traditionally defined, is paraphyletic with respect to mammals and birds. Reptilia contains the last common ancestor of reptiles and all descendants of that ancestor, including all extant reptiles as well as the extinct synapsids, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetrablemma
''Tetrablemma'' is a widespread genus of armored spiders first described by Octavius Pickard-Cambridge in 1873. It only has four eyes; an unusual trait for spiders, found only here and in some species of ''Caponiidae'', though the two are not closely related. The eyes are large, but unequal in size, closely grouped around the center of the prosoma that rises in a somewhat of a cone shape from the abdomen. They have four closely positioned spinnerets enclosed in a corneous casing. Species , the World Spider Catalog accepted the following species: *''Tetrablemma alaus'' Burger, Harvey & Stevens, 2010 – Australia (Western Australia) *'' Tetrablemma alterum'' Roewer, 1963 – Micronesia *'' Tetrablemma benoiti'' (Brignoli, 1978) – Seychelles *'' Tetrablemma brevidens'' Tong & Li, 2008 – China *'' Tetrablemma brignolii'' Lehtinen, 1981 – India *'' Tetrablemma deccanense'' (Tikader, 1976) – India *'' Tetrablemma extorre'' Shear, 1978 – Trinidad *''Tetrablemma helenense'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
