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Laemanctus
''Laemanctus'' is a genus of lizards in the family Corytophanidae. Species in the genus ''Laemanctus'' are commonly referred to as conehead lizards or casquehead iguanas. The genus is endemic to Central America. Description Lizards of the genus ''Laemanctus'' exhibit the following characters. The tympanum is distinct. The plane of the top of the head slopes forward, and the occipital region is raised and extends beyond the occiput. The body is laterally compressed, and is covered with imbricate keeled scales. A strong transverse gular fold is present, but a gular pouch is absent. The limbs are very long, and the infradigital lamellae have a median tubercle-like keel. Femoral pores are absent. The tail is very long, and is round in cross section. The lateral teeth are tricuspid, and pterygoid teeth are present. The clavicle is loop-shaped proximally. A sternal fontanelle is absent. Abdominal ribs are absent. Species and subspecies The genus ''Laemanctus'' consists of four speci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laemanctus Serratus
''Laemanctus serratus'', also known commonly as the serrated casquehead iguana, is a species of lizard in the family Corytophanidae. The species is native to southeastern Mexico and Central America. There are two recognized subspecies. Geographic range ''L. serratus'' is found in the Mexican states of Campeche, Chiapas, Hidalgo, Oaxaca, Puebla, Querétaro, Quintana Roo, San Luis Potosí, Tamaulipas, Veracruz, and Yucatán, and also in the countries of Belize, Guatemala, and Honduras. www.reptile-database.org. Habitat The preferred natural habitat of ''L. serratus'' is forest Description ''L. serratus'' has enlarged triangular scales along the posterior margin of the head casque, and a serrated middorsal crest. McCranie JR, Köhler G (2004). Behavior ''L. serratus'' is diurnal and arboreal. Reproduction ''L. serratus'' is oviparous. Subspecies Two subspecies are recognized as being valid, including the nominotypical subspecies In biological classification, subspecie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laemanctus Longipes
The eastern casquehead iguana (''Laemanctus longipes'') is a species of lizard in the family Corytophanidae. The species is native to Mexico and Central America. Geographic range ''L. longipes'' is found in the southern Mexican states of Colima, Oaxaca, Veracruz, and Yucatán, and in the Central American countries of Belize, Guatemala, Honduras, and Nicaragua. Description Long and thin, ''L. longipes'' can reach 70 cm (27.5 in) in total length, two-thirds of which is a thin tail. The scales on the forehead are much larger than those on the back of the head. No projecting triangular scales occur on the posterior border of the head. The gular scales are bicarinate or tricarinate. Sexual dimorphism is present, but is difficult to observe. Males have a somewhat thicker tail root than females, and the hemipenes are sometimes visible when lifting the tail gently. Habitat The eastern casquehead iguana inhabits tropical wet, moist, and seasonally dry forests. It can persi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laemanctus Waltersi
''Laemanctus waltersi'', also known commonly as Walters' casquehead iguana or Walters's casquehead iguana, is a species of lizard in the family Corytophanidae. The species is endemic to Honduras. www.reptile-database.org. Etymology The specific name, ''waltersi'', is in honor of taxidermist Leon L. Walters, who collected the holotype with Karl Schmidt. Schmidt KP (1933). "New Reptiles and Amphibians from Honduras". ''Field Museum of Natural History Zoological Series'' 20 (4): 15–22. (''Laemanctus waltersi'', new species, pp. 20–21). Geographic range ''L. waltersi'' is found in northwestern Honduras. Reproduction ''L. waltersi'' is oviparous Oviparous animals are animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive method of most fish, amphibians, most reptiles, and all pterosaurs, dinosaurs (including birds), and .... References Further reading * McCoy CJ (1968). "A Review of the Genus ''Laemanctu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corytophanidae
Corytophanidae is a family of iguanian lizards, also called casquehead lizards or helmeted lizards, endemic to the New World. Nine species of casquehead lizards from three genera are recognized. Geographic range Corytophanids are found from Mexico, through Central America, and as far south as Ecuador. Certain species are now extant in South Florida and are considered invasive. Description The casquehead lizards are moderately sized lizards, with laterally compressed bodies, and typically have well-developed head crests in the shape of a casque helmet. This crest is a sexually dimorphic characteristic in males of ''Basiliscus'', but is present in both sexes of ''Corytophanes'' and ''Laemanctus''.Pough et al. (2003). In past years there has been evidence of corytophanids in the Eocene of North America. The greatest percentage of omnivorous species (> 10% plant diet), over 30% in each, and the highest mean percentage of plant matter in the diet are corytophanids. Behavior In ''C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laemanctus Julioi
''Laemanctus julioi'', also known commonly as Julio's casquehead iguana, is a species of lizard in the family Corytophanidae. The species is endemic to Honduras. www.reptile-database.org. Etymology The specific name, ''julioi'', is in honor of Honduran zoologist Julio Enrique Mérida. Geographic range ''L. julioi'' is found in southcentral Honduras, at altitudes of . Behavior ''L. julioi'' is diurnal. Reproduction ''L. julioi'' is oviparous Oviparous animals are animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive method of most fish, amphibians, most reptiles, and all pterosaurs, dinosaurs (including birds), and .... Eggs are laid in May and June.Antúnez-Fonseca et al. (2021). References Further reading *Antúnez-Fonseca, Cristopher Alberto; Zúniga, Luis Gualberto; Padilla-Raudales, Denis; Vega-R., Hermes; Funes, Carlos (2021). "Extended range and observations on the natural history of the casque ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arend Friedrich August Wiegmann
Arend Friedrich August Wiegmann (2 June 1802 – 15 January 1841) was a German zoology, zoologist and Herpetology, herpetologist born in Braunschweig. He studied medicine and philology at the University of Leipzig, and afterwards was an assistant to Martin Lichtenstein (1780–1857) in Berlin. In 1828 he became a professor at Cologne, and two years later was an extraordinary professor at the Humboldt University in Berlin. Wiegmann specialized in the study of herpetology and mammalogy. In 1835, he founded, together with other scholars, the zoological periodical ''Archiv für Naturgeschichte'', also known as "Wiegmann's Archive". With Johann Friedrich Ruthe (1788–1859) he wrote an important textbook of zoology called ''Handbuch der Zoologie'', and in 1834 Wiegmann published ''Herpetologia Mexicana'', a monograph on the reptiles of Mexico. In 1841 he died of tuberculosis at the age of 38 in Berlin. His father Arend Friedrich Wiegmann (1771–1853) a German researcher in botany. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anatomical Terms Of Location
Standard anatomical terms of location are used to unambiguously describe the anatomy of animals, including humans. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position provides a definition of what is at the front ("anterior"), behind ("posterior") and so on. As part of defining and describing terms, the body is described through the use of anatomical planes and anatomical axes. The meaning of terms that are used can change depending on whether an organism is bipedal or quadrupedal. Additionally, for some animals such as invertebrates, some terms may not have any meaning at all; for example, an animal that is radially symmetrical will have no anterior surface, but can still have a description that a part is close to the middle ("proximal") or further from the middle ("distal"). International organisations have determined vocabularies that are often used as standard vocabularies for subdisciplines of anatom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Drinker Cope
Edward Drinker Cope (July 28, 1840 – April 12, 1897) was an American zoologist, paleontologist, comparative anatomist, herpetologist, and ichthyologist. Born to a wealthy Quaker family, Cope distinguished himself as a child prodigy interested in science; he published his first scientific paper at the age of 19. Though his father tried to raise Cope as a gentleman farmer, he eventually acquiesced to his son's scientific aspirations. Cope married his cousin and had one child; the family moved from Philadelphia to Haddonfield, New Jersey, although Cope would maintain a residence and museum in Philadelphia in his later years. Cope had little formal scientific training, and he eschewed a teaching position for field work. He made regular trips to the American West, prospecting in the 1870s and 1880s, often as a member of United States Geological Survey teams. A personal feud between Cope and paleontologist Othniel Charles Marsh led to a period of intense fossil-finding competition ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lizard
Lizards are a widespread group of squamate reptiles, with over 7,000 species, ranging across all continents except Antarctica, as well as most oceanic island chains. The group is paraphyletic since it excludes the snakes and Amphisbaenia although some lizards are more closely related to these two excluded groups than they are to other lizards. Lizards range in size from chameleons and geckos a few centimeters long to the 3-meter-long Komodo dragon. Most lizards are quadrupedal, running with a strong side-to-side motion. Some lineages (known as "legless lizards"), have secondarily lost their legs, and have long snake-like bodies. Some such as the forest-dwelling ''Draco'' lizards are able to glide. They are often territorial, the males fighting off other males and signalling, often with bright colours, to attract mates and to intimidate rivals. Lizards are mainly carnivorous, often being sit-and-wait predators; many smaller species eat insects, while the Komodo eats mammals a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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