Tukeit Hill frogs | |
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Allophryne ruthveni . Amapá, Brazil | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Amphibia |
Order: | Anura |
Suborder: | Neobatrachia |
Superfamily: | Hyloidea |
Family: | Allophrynidae Savage, 1973 |
Genus: | Allophryne Gaige, 1926 |
Species | |
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Distribution of A. ruthveni (in black) |
The Tukeit Hill frogs are three species of frog in the genus Allophryne. [1] [2] [3] Originally erected for the species Allophryne ruthveni, the genus was placed as the only member of the subfamily Allophryninae, which was in turn placed in the family Centrolenidae, [4] but they are now considered as the only genus in the monotypic family Allophrynidae. [1] [2]
These frogs live in Guyana, Venezuela, Suriname, Brazil and Bolivia. The holotype was discovered at Tukeit Hill, below Kaieteur Falls, Guyana, hence the common English name.
The Tukeit Hill frog is a small frog of variable colouration, either black, with stripes and spots which can be golden or dull yellow, or a dull yellow or golden ventral surface, with black strips and spots. It has a flat body, and small, flat head. It has a single, submandibular vocal sac. The toe pads are enlarged, wider than the fingers, and the tympanum is visible. [5]
The Tukeit Hill frog is superficially similar to the tree frogs, but the ends of their phalanges differ in shape. [5]
Allophryne ruthveni is part of a hitherto (see below) monotypic subfamily of anurans: Allophryninae. The evolutionary relationships of this species have always been controversial. It has been joined to families such as Hylidae, Bufonidae, and Leptodactylidae, but until recently, its closer relatives were unknown.
Allophryne is similar in its general shape to tree frogs of the family Hylidae, but differs by having the last phalanges of fingers and toes T-shaped, a character found in glassfrogs, while tree frogs have claw-shaped ones. When herpetologist G. K. Noble examined Allophryne, he suggested it was closely related to glassfrogs, a hypothesis later confirmed by recent phylogenetic studies, which have found Allophryne is the sister taxon of the glassfrog clade Centroleninae. [6]
The glassfrogs differ from Allophryne by having much more delicate skulls and by possessing intercalary elements between the last phalanges of fingers, a process on the third metacarpal, and nonexplosive breeding, among other characteristics. Both glassfrogs and the Allophrynidae are closely related to Leptodactylidae.
Recently, an undescribed species of frog, which probably belongs to the genus Allophryne, was discovered in Peru . This suggests the genus is actually more widespread and more species await discovery. As A. ruthveni was assumed to be a northwestern Amazonian endemic, the Peruvian frog indicates the Allophrynidae might have been more widespread in prehistoric times, only later on disappearing from most of the Amazon Basin, and are actually a relict group. Alternatively, they might occur in the western Amazonas lowlands and simply have not been found yet, though this seems less likely.
The Tukeit Hill frog is semiarboreal, spending some times low in the trees, 1–3 m high, and some of the time on the ground. They are explosive breeders, taking advantage of small water ponds formed on the forest floor after periods of rain. This frog inhabits sparse forest, and may be restricted to forested areas, avoiding cleared land.
Sooglossidae, the Seychelles frogs or Seychelles Island frogs, are a family of frogs found on the Seychelles Islands. Until recently, this family was believed to include the genera Sechellophryne, Nesomantis and Sooglossus, but following a major revision of amphibians in 2006, the genus Nesomantis was named a junior synonym of Sooglossus. Their closest relatives are the purple frogs (Nasikabatrachidae) of India.
The glass frogs belong to the amphibian family Centrolenidae, native to the Central American Rainforests. The general background coloration of most glass frogs is primarily lime green, the abdominal skin of some members of this family is transparent and translucent, giving the glass frog its common name. The internal viscera, including the heart, liver, and gastrointestinal tract, are visible through the skin. When active their blood makes them visible; when sleeping most of the blood is concealed in the liver, hiding them. Glass frogs are arboreal, living mainly in trees, feeding on small insects and only coming out for mating season. Their transparency conceals them very effectively when sleeping on a green leaf, as they habitually do. However, climate change and habitat fragmentation has been threatening the survival rates of the family.
The Arthroleptidae are a family of frogs found in sub-Saharan Africa. This group includes African treefrogs in the genus Leptopelis along with the terrestrial breeding squeakers Arthroleptis, and several genera restricted to the Guinean forests of central and west Africa, such as the hairy frog (Trichobatrachus).
Plethodontohyla is a genus of microhylid frogs endemic to Madagascar.
Indirana is a genus of frogs in the family Ranixalidae. These frogs are endemic to the Western Ghats of India. They are sometimes known under the common name Indian frogs, whereas members of their parent family are named "leaping frogs".
Dendropsophus is a genus of frogs in the family Hylidae. They are distributed in Central and South America, from southern Mexico to northern Argentina and Uruguay. They are sometimes known under the common name Fitzinger neotropical treefrogs or yellow treefrogs
The marsupial frogs are a disputed family (Amphignathodontidae) in the order Anura. When treated as a separate family, it consists of two genera, Gastrotheca and Flectonotus. The frogs are native to Neotropical America. Under the dominant view, they are treated as part of the family of Hemiphractidae.
Duttaphrynus, named after Sushil Kumar Dutta, is a genus of true toads endemic to southwestern and southern China, Taiwan and throughout southern Asia from northern Pakistan and Nepal through India and Bangladesh to Sri Lanka, Andaman Island, Sumatra, Java, Borneo and Bali.
Mertensophryne is a genus of true toads. They are found in eastern and southern Democratic Republic of Congo to Kenya, Tanzania, Malawi, southeastern Zimbabwe, and adjacent Mozambique. Their common names include snouted frogs, Chirinda forest toads, and forest toads. The genus is named for Robert Mertens, German zoologist and herpetologist.
Ingerophrynus is a genus of true toads with 12 species. The genus is found in southern Yunnan and Southeast Asia; from Myanmar and Indochina to peninsular Thailand and Malaya, Sumatra, Borneo, Java, Nias Island, Sulawesi, and the Philippines. This genus was established after a major taxonomical revision of frogs in 2006.
Sclerophrys is a genus of "true toads", family Bufonidae, native to Africa and the southern Arabian Peninsula. Originally, all of these species were classified in the genus Bufo. The genus, originally named Amietophrynus, was split due to large enough taxonomic divergence. Ohler and Dubois showed in 2016 that Sclerophrys capensis Tschudi, 1838 is the same species as Bufo regularis rangeri Hewitt, 1935, the type species of Amietophrynus. Because the former name is older, the implication is that Amietophrynus is a junior synonym of Sclerophrys.
The Latin word Cranopsis has been used to name animal genera of frogs, mollusks and branchiopods. Cranopsis, was used for an anuran, and is a junior homonym of Cranopsis, for a mollusk; and Cranopsis, for a branchiopod. Cranopsis currently describes a mollusk genus in the family Fissurellidae.
Brevicipitidae or rain frogs is a small family of frogs found in eastern and southern Africa. As of 2020 contains 37 species in 5 genera. Formerly included as subfamily in Microhylidae, phylogenetic research has indicated the brevicipitine frogs should be considered as a family with Hemisotidae as the most closely related sister taxon.
Jonathan Atwood Campbell is an American herpetologist. He is currently professor of biology at University of Texas at Arlington. He was a distinguished professor and chair of the Department of Biology, University of Texas at Arlington, Arlington, Texas.
Feihyla is a genus of frogs in the family Rhacophoridae, subfamily Rhacophorinae. They are found in southern China and Vietnam, and likely also in Laos. Its phylogenetic position is not yet fully resolved, but it is probably the sister taxon to Taruga, Polypedates, and Rhacophorus. Feihyla was originally erected to resolve polyphyly of Chirixalus by absorbing "Chirixalus palpebralis".
Poyntonophrynus, also known as pygmy toads, are a genus consisting of ten true toad species native to Sub-Saharan Africa. Originally, all Poyntonophrynus species were included in the genus Bufo. The genus was split due to large enough taxonomic divergence as evidenced by molecular markers. The genus is named in honour of John C. Poynton, South African herpetologist, with phrynus being Greek for toad.
The Leiuperinae are a subfamily of frogs in the family Leptodactylidae. Over 90 species are in five genera. The distribution of this subfamily is from southern Mexico to the Central America and much of South America.
Vandijkophrynus, also known as Van Dijk's toads, are a small genus of true toads, family Bufonidae. They are native to Southern Africa. The name commemorates Eddie Van Dijk, a South African herpetologist.
Ronald Archie Nussbaum is an American herpetologist. He works with evolutionary biology and ecology of amphibians and reptiles, including systematics of caecilians and salamanders. He is a professor emeritus at the University of Michigan.
Atlantihyla is a genus of frogs in the family Hylidae. It is endemic to Central America, specifically to Honduras and Guatemala. The generic name refers to its distribution on the Atlantic side of the isthmus. The members of the genus are known as stream frogs.
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: CS1 maint: multiple names: authors list (link) Database entry includes a range map and a brief justification of why this species is of least concern