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Gymnophiona
Caecilians (; ) are a group of limbless, vermiform or serpentine amphibians. They mostly live hidden in the ground and in stream substrates, making them the least familiar order of amphibians. Caecilians are mostly distributed in the tropics of South and Central America, Africa, and southern Asia. Their diet consists of small subterranean creatures such as earthworms. All modern caecilians and their closest fossil relatives are grouped as a clade, Apoda , within the larger group Gymnophiona , which also includes more primitive extinct caecilian-like amphibians. The name derives from the Greek words γυμνος (''gymnos'', naked) and οφις (''ophis'', snake), as the caecilians were originally thought to be related to snakes. The body is cylindrical dark brown or bluish black in colour. The skin is slimy and bears grooves or ringlike markings. Description Caecilians completely lack limbs, making the smaller species resemble worms, while the larger species, with lengths up ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibian
Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to reptiles like lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed. With their complex reproductive needs and permeable skins, amphibians are often ecological indicators; in recent decades there has been a dramatic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhinatrematidae
Rhinatrematidae is a family of caecilians, also known as the Neotropical tailed caecilians, American tailed caecilians. or beaked caecilians. They are found in the equatorial countries of South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the sout .... They are usually regarded as the most basal of the caecilian families, with numerous characteristics lacking in the other groups. For example, they still possess tails, and their mouths are not recessed on the underside of their heads. They lay their eggs in cavities in the soil. The larvae have external gills, and live in seepage areas until they metamorphose. The adults live in moist soil and leaf litter. Taxonomy The 14 species in three genera are: * Genus '' Amazops'' ** '' Amazops amazops'' (Ecuador) * Genus '' Epicrionops'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caecilia Pulchraserrana
''Caecilia pulchraserrana'' is a species of gymnophionic amphibian in the family Caeciliidae, which can be found on the western slopes of the Eastern Ranges and is endemic to Yariguíes National Park, in Santander Department, Colombia. It can be differentiated from other species of cecilia by its small size, with length varying from 195 to 232 millimeters, for having only incomplete ring-shaped primary grooves, with a number ranging from 100 to 104, smaller than the others, and for having parts of its body salmon colored. It has fossorial habits, spending most of its time buried, and can quickly dig tunnels if it needs to escape quickly. It was described by a trio of researchers, with the paper being published on October 30, 2019 in the scientific journal ZooKeys. To attest to its speciation, analyses were performed on genes from its mitochondrial DNA, as well as morphological comparisons, which confirmed it. Its name was chosen with the help of local people and is an al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siphonops Paulensis
''Siphonops paulensis'', or Boettger's caecilian, is a species of caecilian in the family Siphonopidae. It is found in northern Argentina, Paraguay, eastern Bolivia, and southern Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area .... It lives subterraneously in forests, savannas, shrublands, and grassland. It also adapts to anthropogenic disturbance and can even live in urban gardens. In fact these caecilians have even been recorded to breed and raise their young close to Santa Cruz, a highly populated city. It is a locally common species that is not facing major threats. References paulensis Amphibians of Argentina Amphibians of Brazil Amphibians of Bolivia Amphibians of Paraguay Amphibians described in 1892 Taxonomy articles created by Polbot {{Caecilian-st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caeciliidae
Caeciliidae is the family of common caecilians. They are found in Central and South America. Like other caecilians, they superficially resemble worms or snakes. Although they are the most diverse of the caecilian families, the caeciliids do have a number of features in common that distinguish them from other caecilians. In particular, their skulls have relatively few bones, with those that are present being fused to form a solid ram to aid in burrowing through the soil. The mouth is recessed beneath the snout, and there is no tail. Many caeciliids lay their eggs in moist soil. The eggs then hatch into aquatic larvae, which live in seepages in the soil, or in small streams. However, some species lack a larval stage, with the eggs hatching into juveniles with the same form as the adults, or else lack eggs and give birth to live young. Phylogeny Traditional taxonomy, which is reflected in the "Scientific Classification" box in this article, categorizes extant amphibia into three ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herpelidae
Herpelidae are a family of caecilians, sometimes known as the African caecilians. They are found in Sub-Saharan Africa. Like other caecilians, they superficially resemble worms or snakes. They are the sister group to the newly discovered Chikilidae. Distribution Herpelidae occur primarily in Central and East Africa, barely reaching West Africa (southeastern Nigeria), and northern parts of Southern Africa (Malawi, possibly Zambia). Genera There are two genera with ten species in total: * ''Boulengerula ''Boulengerula'' is a genus of amphibians in the family Herpelidae. They are found in East Africa. They are sometimes known as Boulenger's caecilians or Usambara bluish-gray caecilians. Ecology '' Boulengerula taitana'' feeds on earthworms, term ...'' Tornier, 1896 – Boulenger's caecilians, Usambara bluish-gray caecilians (8 species) * '' Herpele'' Peters, 1880 – Congo caecilians (2 species) References {{Taxonbar, from=Q3086167 Amphibian families Amphibians of Su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Typhlonectidae
Typhlonectidae, also known as aquatic caecilians or rubber eels, are a family of caecilians found east of the Andes in South America. They are viviparous animals, giving birth to young that possess external gills. Of the five genera in the family, ''Atretochoana'', ''Potamotyphlus'' and ''Typhlonectes'' are entirely aquatic, while ''Chthonerpeton'' and ''Nectocaecilia'' are semiaquatic. ''Atretochoana'' reaches in length, but other species in the family range from . Taxonomy *Genus '' Atretochoana'' **''Atretochoana eiselti'' *Genus '' Chthonerpeton'' **'' Chthonerpeton arii'' **'' Chthonerpeton braestrupi'' **'' Chthonerpeton exile'' **'' Chthonerpeton indistinctum'' **'' Chthonerpeton noctinectes'' **'' Chthonerpeton onorei'' **'' Chthonerpeton perissodus'' **'' Chthonerpeton viviparum'' *Genus '' Nectocaecilia'' **''Nectocaecilia petersii'' *Genus ''Potamotyphlus'' **''Potamotyphlus kaupii'' *Genus ''Typhlonectes'' **''Typhlonectes compressicauda'' **''Typhlonectes natans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scolecomorphidae
The Scolecomorphidae are the family of caecilians, also known as tropical caecilians, buried-eyed caecilians, or African caecilians. They are found in Cameroon in West Africa, and Malawi and Tanzania in East Africa. Caecilians are legless amphibians which superficially resemble worms or snakes. Scolecomorphids have only vestigial eyes, which are attached to the base of a pair of tentacles underneath the snout. Unlike other caecilians, they have only primary annuli; these are grooves running incompletely around the body, giving the animal a segmented appearance. All other caecilians have a complex pattern of grooves, with secondary or tertiary annuli present. Also uniquely amongst tetrapods, the scolecomorphids lack a stapes bone in the middle ear. At least some species of scolecomorphids give birth to live young, retaining the eggs inside the females' bodies until they hatch into fully formed offspring, without the presence of a free-living larval stage. Taxonomy Just six spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grandisoniidae
The Grandisoniidae are a family of common caecilians found in Africa, Seychelles and India. Like other caecilians, they superficially resemble worms or snakes. The family was formerly known as Indotyphlidae. Taxonomy The genera in this family were originally placed in family Caeciliidae. In 2011, the genera '' Gegeneophis'', '' Grandisonia'', '' Hypogeophis'', '' Idiocranium'', ''Indotyphlus'', '' Praslinia'' and '' Sylvacaecilia'' were segregated into family Indotyphlidae, named after the tribe Indotyphlini, which was used by Lescure et al (1986) for the Indian genera, ''Gegeneophis'' and ''Indotyphlus''. However, it was later pointed out that the name Grandisoniidae is the appropriate family-group name because, according to rules of the Nomenclatural Code, a name published at higher rank, Grandisoniinae, has precedence over a name of lower rank published in the same work, Indotyphlini.Dubois, Ohler, and Pyron, 2021, Megataxa, 5: 1–738 Genera and species *Genus '' Ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ichthyophiidae
The Ichthyophiidae are the family of Asiatic tailed caecilians or fish caecilians found in South and Southeast Asia as well as southernmost China. They are primitive caecilians, lacking many of the derived characters found in the other families. For example, their mouths are not recessed underneath their heads, they possess tails, and they have numerous scales on their bodies. However, they have two sets of muscles for closing the jaw, a feature unique to caecilians, but absent in the related family Rhinatrematidae. They lay their eggs in cavities in moist soil, where they hatch into larvae that seek out streams or underground seepages, before metamorphosing into adults. Some evidence indicates the females may protect their eggs until they hatch. Taxonomy Family Ichthyophiidae * Genus ''Ichthyophis'' **'' Ichthyophis acuminatus'' **''Ichthyophis alfredi'' **'' Ichthyophis asplenius'' **'' Ichthyophis atricollaris'' **'' Ichthyophis bannanicus'' **''Ichthyophis beddomei'' **'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siphonopidae
The Siphonopidae are the family of common caecilians. They are found in Central and South America. Like other caecilian Caecilians (; ) are a group of limbless, vermiform or serpentine amphibians. They mostly live hidden in the ground and in stream substrates, making them the least familiar order of amphibians. Caecilians are mostly distributed in the tropics o ...s, they superficially resemble worms or snakes. They are the sister group to Dermophiidae, also of South America. Siphonopids are oviparous caecilians, meaning they lay eggs. They have imperforated stapes and no inner mandibular teeth. Like species of some other caecilian families, their skulls have relatively few bones, with those present being fused to form a solid ram to aid in burrowing through the soil. The mouth is recessed beneath the snout, and there is no tail. Genera and species *Genus '' Brasilotyphlus'' **'' Brasilotyphlus braziliensis'' **'' Brasilotyphlus dubium'' **'' Brasilotyphlus guarantan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Typhlonectes Compressicauda
''Typhlonectes compressicauda'', the Cayenne caecilian, is a species of amphibian in the family Typhlonectidae that lives in water. It is found in Amazonian Brazil, Peru, and Colombia as well as in Guyana and French Guiana, and likely Suriname, and according to some sources, Venezuela. It is an aquatic caecilian that inhabits permanent rivers and marshes mainly in the lowland forest zone. Description The Cayenne caecilian is an elongated, dark grey, black or steely blue amphibian with no limbs. The body is flattened laterally and has a number of transverse folds, giving it a segmented appearance. A long fin runs along its back, and it grows to a length of . It has a more highly derived morphology than some more primitive species, showing differences in lung structure, the reproductive organs, and the kidneys. Distribution The Cayenne caecilian occurs in South America, including the Amazon basin and river systems in the Guianas. It is found at altitudes of up to above sea level ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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