Hemiphractus | |
---|---|
Hemiphractus bubalus | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Amphibia |
Order: | Anura |
Family: | Hemiphractidae |
Genus: | Hemiphractus Wagler, 1828 |
Diversity | |
See text | |
Synonyms | |
|
Hemiphractus is a genus of frogs, the horned treefrogs, in the family Hemiphractidae. [1] [2] These overall brownish frogs have a pointed snout and a casque on the head. They are nocturnal, relatively rare and native to humid lowland and highland forests in northern South America (Amazon east as far as Tapajós, Chocó-Magdalena and northern Andes) and Panama, where typically found on the ground or at relatively low levels in vegetation. [1] [3] [4]
Hemiphractus are robust-bodied frogs. [5] The genus is characterized by a fleshy proboscis on the tip of the snout and fleshy tubercles on the eyelids, skull that is highly casqued with prominent lateral occipital processes projecting backwards, and fang-like maxillary and premaxillary teeth. [6] Females grow larger than males, and depending on exact species the snout–to–vent length generally is between c.2.5 and 8 cm (1.0–3.1 in). [3] [4]
Hemiphractus are believed to be specialized predators of other frogs, and hence confined to areas with high density of frogs. [7] Nevertheless, they have also been recorded feeding on lizards, large insects and snails in the wild, and in addition to other frogs captive Hemiphractus will eat geckos, newborn mice and earthworms. [3] [8]
They can threaten any would-be predator by opening their mouth, exposing the bright yellow inside and tongue. [8] [9] If this fails to scare an adversary, they willingly bite, which is relatively painful for a frog of their size. [3]
Female frogs carry eggs openly on their back; the eggs adhere to the mother's back with gelatinous material. Eggs hatch as fully developed froglets. [10] H. elioti (previously included in H. fasciatus) are bred and maintained by the El Valle Amphibian Conservation Center in Panama. [3] Although they have proven relatively difficult to keep in captivity, [11] keeping and breeding has been achieved at levels where its conservation through such measures is considered possible, although (as of 2015 where the total captive population was 36 individuals) additional founders are necessary. [12]
The following species are recognized in the genus Hemiphractus . [1]
Until 2001, populations now recognized as H. helioi were typically included in H. johnsoni, [6] and until 2018 populations now recognized as H. elioti, H. kaylockae and H. panamensis were typically included in H. fasciatus. [3] Colombian "H. fasciatus" may represent a currently unrecognized species (thus limiting true H. fasciatus to Ecuador), [3] and it is possible that H. scutatus is a species complex. [4]
Cryptobatrachus is a genus of frogs in the family Hemiphractidae. They are found in Colombia and Venezuela. They are also known as backpack frogs, as the females have the habit of carrying their egg clutch on their backs until the young hatch; this behavior also occurs in the related hemiphractid genera Hemiphractus and Stefania.
The Panamanian golden frog, also known as Cerro Campana stubfoot toad and other names, is a species of toad endemic to Panama. Panamanian golden frogs inhabit the streams along the mountainous slopes of the Cordilleran cloud forests of west-central Panama. While the IUCN lists it as Critically Endangered, it may in fact have been extinct in the wild since 2007. Individuals have been collected for breeding in captivity in a bid to preserve the species. The alternative common name, Zetek's golden frog, and the epithet zeteki both commemorate the entomologist James Zetek.
Triprion spinosus, also known as the spiny-headed tree frog, spiny-headed treefrog, spinyhead treefrog, coronated treefrog, and crowned hyla, is a species of frog in the family Hylidae. It has a spotty distribution in Panama, Costa Rica, Honduras, and southern Mexico. Previously in its own monotypic genus Anotheca Smith, 1939, it was transferred to the genus Triprion in 2018.
Dendropsophus phlebodes, the San Carlos treefrog or San Carlos dwarf treefrog, is a species of frog in the family Hylidae. It is found in western Colombia, Costa Rica, Nicaragua and Panama. Its natural habitats are tropical moist lowland forests, but it may also occur in disturbed habitats. It is threatened by habitat loss.
Cryptobatrachus boulengeri, also known as Boulenger's backpack frog, is a species of frogs in the family Hemiphractidae. It is endemic to Sierra Nevada de Santa Marta in northern Colombia. The specific name honours George Albert Boulenger, an eminent herpetologist.
Cryptobatrachus fuhrmanni is a species of frog in the family Hemiphractidae. It is endemic to Colombia and occurs on all three Andean cordilleras: it is found on the eastern slope of the Cordillera Occidental, northern and eastern flanks of the Cordillera Central, and the western slope of the Cordillera Oriental. The specific name fuhrmanni honors Otto Fuhrmann, Swiss zoologist and helminthologist.
Eleutherodactylus counouspeus, also known as Counou robber frog and yellow cave frog, is a species of frog in the family Eleutherodactylidae. It is endemic to the Massif de la Hotte, southwestern Haiti. The specific name counouspeus refers to its type locality, Counou Bois Cave, with speus being Greek for "cave". Hedges and colleagues suggested in 2008 that it should be placed in its own monotypic subgenus, Schwartzius, reflecting its distinctiveness and honoring Albert Schwartz for "his contributions to the herpetology of the West Indies."
Pristimantis factiosus is a species of frog in the family Strabomantidae. It is endemic to the eastern slopes of the Cordillera Central in Colombia and only known from near its type locality, El Estadero in Samaná, Caldas Department, and from Anorí, Antioquia Department. The IUCN SSC Amphibian Specialist Group, however, has mapped its distribution as continuous between these locations. The specific name factiosus refers to sexual dimorphism in coloration of the flanks.
Hemiphractus fasciatus, or the banded horned treefrog, is a species of frog in the family Hemiphractidae. It is found in northwestern Ecuador and possibly the Pacific slopes of the Cordillera Occidental in Colombia; although formerly listed for Panama, this involves the similar and closely related H. elioti, H. kaylockae and H. panamensis. It is a relatively large frog that may readily bite.
Hemiphractus helioi is a species of frog in the family Hemiphractidae. It is found in the upper Amazon basin and lower Amazonian slopes of the Andes from Ecuador to southern Peru and into adjacent Brazil (Acre). There is also a disputed record from northern Bolivia. Prior to its formal description in 2001, it was confused with Hemiphractus johnsoni. Its natural habitats are primary tropical rainforest and montane cloud forest. It is an uncommon or even rare species, but no major threats have been identified; habitat loss can be a localized threat.
Hemiphractus johnsoni, or the Johnson's horned treefrog, is a species of frog in the family Hemiphractidae. It is endemic to Colombia and known from the Cordillera Central in Antioquia and Caldas Departments as well as from the Cordillera Oriental in Huila Department. Prior to 2001, what now is known as Hemiphractus helioi was included in this species. Its natural habitat is primary cloud forest. It is threatened by habitat loss.
Hemiphractus scutatus, also known as Spix's horned treefrog, is a species of frog in the family Hemiphractidae. It is found in the upper Amazon basin in Bolivia, western Brazil, Peru, Ecuador, and southern Colombia.
Stefania roraimae is a species of frog in the family Hemiphractidae. It is endemic to Guyana. Its type locality is Mount Roraima; it is also known from Mount Ayanganna and Mount Wokomung. It presumably occurs in the adjacent Venezuela and Brazil too.
Platymantis insulatus is a species of frog in the family Ceratobatrachidae. It is endemic to the Gigante Islands just northeast of Panay, the Philippines. This frog is variously known as the Gigantes wrinkled ground frog, island forest frog, South Gigante Island frog, Gigantes forest frog, and Gigantes limestone frog. Originally described from South Gigante, it is now known to occur on at least three other islands.
Incilius is a genus of toads in the true toad family, Bufonidae. They are sometimes known as the Central American toads or Middle American toads and are found in southern USA, Mexico, Central America, and northern Pacific South America. They are an ecologically and biogeographically diverse group of toads, including micro-endemic species such as Incilius spiculatus that are restricted to undisturbed cloud forests, and widespread lowland species such as Incilius valliceps that predominantly occur in disturbed habitats.
Nyctibatrachidae is a small family of frogs found in the Western Ghats of India and in Sri Lanka. Their common name is robust frogs. Recognition of Nyctibatrachidae as a family is fairly recent. These frogs were previously placed in the broadly defined family Ranidae, which was more recently divided into three subfamilies: Lankanectinae, Nyctibatrachinae, and Astrobatrachinae.
The Hemiphractidae are a family of frogs from South and Central America. Previously, this group had been classified as a subfamily (Hemiphractinae) under family Hylidae. More recent research classifies these genera into their own family, or sometimes into three separate families: Amphignathodontidae, Cryptobatrachidae, and Hemiphractidae. An active question still exists as to which of these groupings is more accurate.
Ecnomiohyla rabborum, commonly known as Rabbs' fringe-limbed treefrog, is a possibly extinct species of frog in the family Hylidae. They were relatively large frogs that inhabited the forest canopies of central Panama. Like other members of the genus Ecnomiohyla, they were capable of gliding by spreading their enormous and fully webbed hands and feet during descent. The males of the species were highly territorial and would guard water-filled tree holes used for breeding. They were also the ones responsible for guarding and caring for the young, including providing food. They were the only known species of frog where the tadpoles derived nutrition by feeding on the skin cells of their fathers.
Cryptobatrachus ruthveni is a species of frogs in the family Hemiphractidae. It is endemic to the western flank of the Sierra Nevada de Santa Marta in northern Colombia. The specific name ruthveni honors Alexander Grant Ruthven, an American herpetologist who was the first one to study.