Osteocephalus deridens

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Osteocephalus deridens
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Hylidae
Genus: Osteocephalus
Species:
O. deridens
Binomial name
Osteocephalus deridens
Jungfer  [ fr ], Ron, Seipp, and Almendáriz, 2000 [2]

Osteocephalus deridens is a species of frog in the family Hylidae. [3] It is found in the Napo and Pastaza River drainages in eastern Ecuador and in the Loreto Region, northern Peru. [1] [4] [5] The specific name deridens is derived from Latin deridere, meaning "make fun of someone". This alludes to the males calling from the treetops that sound "as if they are laughing at the collectors' vain attempts to reach them". [2] Common name funny slender-legged treefrog has been coined for this species. [4]

Contents

Description

Adult males measure 29–35 mm (1.1–1.4 in) and adult females 44–51 mm (1.7–2.0 in) in snout–vent length. [4] The snout is rounded in profile and truncate in dorsal view. The tympanum is conspicuous but partly cover by the supratympanic fold. The fingers and the toes are partially webbed. The dorsum is dark tan, with variable markings (irregular dark tan blotches, suffusions of dark tan, irregular light brown spots or flecks, or light brown backward-pointing triangle). The limbs have dark crossbars. The lower surfaces are creamy white. [2]

Habitat and conservation

Osteocephalus deridens inhabits Napo moist forests at elevations of 200–600 m (660–1,970 ft) above sea level. [1] [4] It occurs in the canopy of primary forest. [1] Males call usually higher than 5 m (16 ft) above the ground, and the tadpoles develop in bromeliads, often higher than 15 m (49 ft) above the ground. [1]

This species is difficult to observe because of its arboreal lifestyle. It does not adapt well to anthropogenic disturbance and is threatened by habitat loss caused by agriculture and logging. It occurs in the Yasuni National Park (Ecuador). [1]

Related Research Articles

<span class="mw-page-title-main">Slender-legged tree frogs</span> Genus of amphibians

Osteocephalus is a genus of frogs, the slender-legged tree frogs, in the family Hylidae found in the Guianas, the Amazon Basin, Venezuela, Colombia, southeastern Brazil, and north-eastern Argentina. Males are warty, while females are smooth.

<i>Nymphargus anomalus</i> Species of frog

Nymphargus anomalus is a species of frog in the family Centrolenidae. It is endemic to Ecuador and occurs on the Amazonian slopes of the Ecuadorian Andes in the Napo Province. Common name Napo Cochran frog has been coined for it.

<i>Osteocephalus helenae</i> Species of amphibian

Osteocephalus helenae is a species of frog in the family Hylidae. It is widely distributed in the Amazon Basin and is known from the lowlands of Bolivia, Peru, Brazil, Colombia, Venezuela, Guyana, and French Guiana. The specific name helenae honors Helen Beulah Thompson Gaige, an American herpetologist. Common name Helena's [sic] treefrog has been proposed for it.

<i>Osteocephalus buckleyi</i> Species of amphibian

Osteocephalus buckleyi, also known as Buckley's slender-legged treefrog, is a species of frog in the family Hylidae. It is found along the periphery of the Amazon Basin in Bolivia, Peru, Ecuador, Colombia, northeastern Brazil, Venezuela, Guyana, Suriname, and French Guiana, and also in the Orinoco Delta in Venezuela. It is probably a species complex. Some sources treat Osteocephalus vilmae from Ecuador and Peru as a valid species.

<i>Osteocephalus cabrerai</i> Species of frog

Osteocephalus cabrerai is a species of frog in the family Hylidae. It is found in the Amazon Basin in Brazil (Manaus), northeastern Peru, Ecuador, Colombia, Guyana, and French Guiana, possibly wider. Some earlier records refer to Osteocephalus buckleyi.

Osteocephalus fuscifacies is a species of frog in the family Hylidae endemic to Ecuador. It is known from the Napo River drainage at intermediate elevations. The specific name fuscifacies is derived from Latin fuscus (=tan) and facies (=face), in reference to the uniform tan-colored loreal region and the lack of a light subocular spot. Common name Napo slender-legged treefrog has been coined for this species.

<i>Osteocephalus mutabor</i> Species of amphibian

Osteocephalus mutabor is a species of frogs in the family Hylidae found on the western Andean foothills of Ecuador and south to Ucayali Region of Peru. Before Osteocephalus mutabor was described as a new species in 2002, it was confused with Osteocephalus leprieurii.

Dryaderces pearsoni is a species of frog in the family Hylidae. Broadly defined, it is found in Bolivia, Brazil, and Peru. However, the nominal taxon includes two species, and true Dryaderces pearsoni is only known with certainty from Bolivia. The specific name pearsoni honors Nathan E. Pearson, an American ichthyologist who made a "splendid collection of amphibians" during an expedition to Bolivia, including the holotype of this species. Common name Pearson's slender-legged treefrog has been coined for the species.

<span class="mw-page-title-main">Ecuador slender-legged tree frog</span> Species of amphibian

The Ecuador slender-legged tree frog is a species of frog in the family Hylidae found in Colombia and Ecuador. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical moist montane forests, rivers, intermittent freshwater marshes, rural gardens, and heavily degraded former forests.

<i>Osteocephalus yasuni</i> Species of amphibian

Osteocephalus yasuni is a species of frogs in the family Hylidae. It is found in the upper Amazon Basin in southern Colombia, Ecuador, and northeastern Peru at elevations of 70–250 m (230–820 ft) above sea level. The specific name yasuni refers to the Yasuni National Park where its type locality is.

<i>Callimedusa ecuatoriana</i> Species of frog

Callimedusa ecuatoriana is a species of frog in the subfamily Phyllomedusinae. It is endemic to Ecuador and known from the Amazonian slopes of the Andes in the Morona-Santiago Province as well as from Cordillera del Condor in the Zamora-Chinchipe Province. Common name Agua Rica leaf frog has been proposed for it.

<i>Scinax ruber</i> Species of amphibian

Scinax ruber is a species of frog in the family Hylidae which is known in English as the red snouted treefrog or red-snouted treefrog, sometimes also Allen's snouted treefrog, the latter referring to the now-synonymized Scinax alleni. This widespread species is found in much of Amazonian and northern coastal South America and into Panama, as well as in some Caribbean islands as introduced populations. It is a complex containing several cryptic species.

Noblella lochites, also known as Ecuador leaf frog, is a species of frog in the family Strabomantidae. It is found on the Amazonian slopes of the Andes and Cordillera del Cóndor and the Cordillera de Cutucú in Ecuador and Peru; the Peruvian record has been disputed, although it is nevertheless expected that the species occurs in Peru.

Noblella myrmecoides is a species of frog in the family Strabomantidae. It is found in the upper Amazon Basin of southeastern Colombia, eastern Ecuador, eastern Peru, Bolivia, and western Brazil (Amazonas). Common name Loreto leaf frog has been coined for this species.

<i>Dryaderces</i> Genus of amphibians

Dryaderces is a small genus of frogs in the family Hylidae. Their known distribution is disjunct, with one species found in the upper Amazon Basin and lower Andean slopes between central Peru and Amazonian Bolivia, and another one in Pará, Brazil. Its sister taxon is Osteocephalus. No phenotypic synapomorphies defining the genus are known.

Osteocephalus castaneicola is a species of frog in the family Hylidae. It is found in lowland Amazonia of northern Bolivia, adjacent southeastern Peru, and western Brazil. It breeds in water-filled fruit capsules of the Brazil nut, a characteristic also alluded to in its specific name castaneicola derived from the Latin castanea, the root of the vernacular name castaña for the Brazil nut, together with the Latin colō meaning "to inhabit".

<i>Hyloscirtus condor</i> Species of tree frog

Hyloscirtus condor is a species of tree frog native to Ecuador. Scientists know it exclusively from the type locality in the Reserva Biológica Cerro Plateado. It can be found in elevations of more than 2,300 m (7,500 ft).

Osteocephalus vilarsi is a frog in the family Hylidae endemic to the state of Amazonas in Brazil and the state of Amazonas in Venezuela. Scientists think it might also live in Colombia. This frog lives in white-sand forests.

Osteocephalus duellmani is a frog in the family Hylidae endemic to Ecuador. Scientists know it exclusively from its type locality in the Cordillera del Cóndor. It was located 1910 meters above sea level.

Osteocephalus camufatus, the Rio Abacaxis spiny-backed frog, is a frog in the family Hylidae, endemic to Brazil. Scientists have seen it in two places.

References

  1. 1 2 3 4 5 6 IUCN SSC Amphibian Specialist Group (2018). "Osteocephalus deridens". IUCN Red List of Threatened Species . 2018: e.T55791A61403291. doi: 10.2305/IUCN.UK.2018-1.RLTS.T55791A61403291.en . Retrieved 17 November 2021.
  2. 1 2 3 Jungfer, Karl-Heinz; Ron, Santiago; Seipp, Robert & Almendáriz, Ana (2000). "Two new species of hylid frogs, genus Osteocephalus, from Amazonian Ecuador". Amphibia-Reptilia. 21 (3): 327–340. doi: 10.1163/156853800507525 .
  3. ↑ Frost, Darrel R. (2018). "Osteocephalus deridens Jungfer, Ron, Seipp, and Almendáriz, 2000". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 23 May 2018.
  4. 1 2 3 4 Read, M. & Ron, SR (2011–2016). Ron, S. R.; Yanez-Muñoz, M. H.; Merino-Viteri, A. & Ortiz, D. A. (eds.). "Osteocephalus deridens". AmphibiaWebEcuador. Version 2018.0. Museo de Zoología, Pontificia Universidad Católica del Ecuador (QCAZ). Retrieved 23 May 2018.
  5. ↑ Moravec, J.; Aparicio, J.; Guerrero-Reinhard, M.; Calderón, G.; Jungfer, K.-H. & Gvoždík, V. (2009). "A new species of Osteocephalus (Anura: Hylidae) from Amazonian Bolivia: first evidence of tree frog breeding in fruit capsules of the Brazil nut tree". Zootaxa. 2215: 37–54. doi:10.11646/zootaxa.2215.1.3.
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