Nymphargus anomalus

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Nymphargus anomalus
Nymphargus anomalus.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Centrolenidae
Genus: Nymphargus
Species:
N. anomalus
Binomial name
Nymphargus anomalus
(Lynch  [ fr ] and Duellman  [ fr ], 1973)
Synonyms [2]
  • Centrolenella anomala Lynch and Duellman, 1973 [3]
  • Cochranella anomala (Lynch and Duellman, 1973)

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. [2] Common name Napo Cochran frog has been coined for it. [2]

Contents

Description

Adult males measure 21–25 mm (0.8–1.0 in) and adult females 26–27 mm (1.0–1.1 in) in snoot–vent length. [4] The snout is short and truncate. The tympanum is visible, with its upper edge barely covered by the weakly-developed supra-tympanic fold. The fingers are only slightly webbed and have broad discs. The toes are two-thirds webbed and have discs that are rounder and slightly smaller than those on the fingers. The coloration is tan, which is unusual among the related species—hence the specific name anomala, from Greek "unusual". There are small, black ocelli that enclose orange-tan spots. [3]

Habitat and conservation

Nymphargus anomalus occurs in vegetation bordering mountain streams at elevations of 1,668–1,771 m (5,472–5,810 ft) above sea level. It is nocturnal. Males call from the vegetation. Females attach their eggs on mossy branches over the stream. [4] The male holotype was found on a mossy limb of a bush, about 1.5 m (5 ft) above a cascading rivulet. [3]

The habitat at the type locality has been subject to some habitat loss. [1] For a long time, this was the only known locality. However, in 2009 one new population was found near the Llanganates National Park, and another from the Sumaco volcano [4] (not specified whether the locality was within the Sumaco Napo-Galeras National Park).

Related Research Articles

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<i>Isthmohyla rivularis</i> Species of amphibian

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Isthmohyla xanthosticta is a species of frogs in the family Hylidae. It is endemic to Costa Rica and only known from its type locality on the south slope of Volcan Barba in the Heredia Province. Common name south fork treefrog has been coined for it.

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.

Quilticohyla acrochorda, commonly known as the warty mountain stream frog, is a species of frogs in the family Hylidae. It is endemic to Mexico and known from the Atlantic slopes of the Sierra Juárez in Oaxaca. Before being described as a new species in 2000, it was mixed with Ptychohyla erythromma. The specific name acrochorda is a Greek word for "wart" and refers to the distinctive white warts on the posterior surface of the thigh of this frog.

Atlantihyla panchoi, also known as the Guatemala stream frog, is a species of frog in the family Hylidae. It is endemic to eastern Guatemala and is only known from three localities in the Sierra de las Minas and Montañas del Mico ranges. The specific name panchoi honors Laurence Cooper "Don Pancho" Stuart, an American herpetologist.

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<i>Diasporus gularis</i> Species of frog

Diasporus gularis, also known as the Esmeraldas robber frog, is a species of frog in the family Eleutherodactylidae. It is found in western Colombia and northwestern and central Ecuador.

<i>Pristimantis inusitatus</i> Species of frog

Pristimantis inusitatus is a species of frog in the family Strabomantidae. It is endemic to Ecuador and known from scattered localities along the eastern slopes of the Andes. Common name barking robber frog has been coined for it.

Pristimantis quaquaversus is a species of frog in the family Strabomantidae. It is found on the lower Amazonian slopes of the Andes from northern Ecuador south to the Cordillera de Cutucú and Cordillera del Cóndor as well as the adjacent northern Peru.

Gastrotheca trachyceps is a species of frog in the family Hemiphractidae. It is endemic to the Cauca Department, Colombia, and is known from its type locality, Cerro Munchique in the Cordillera Occidental, and Vereda Santa Elena (Popayán) in the Cordillera Central. The specific name trachyceps is said to be derived from Greek trachy meaning "rough" and Latin ceps meaning "head", in reference to the rough appearance of the head. The proper word in Latin for head, however, is caput. The common name Cerro Munchique marsupial frog has been coined for it.

<i>Nymphargus</i> Genus of amphibians

Nymphargus is a genus of glass frogs in the subfamily Centroleninae, which was established in 2007. They are distributed in the Andean slopes of Colombia, Ecuador, Peru, and Bolivia. They are characterized by lacking webbing among the outer fingers, lacking humeral spines in adult males, and having a lobed liver covered by a transparent hepatic peritoneum. They can be more specifically characterized as having a head that is darker green than the body, there being yellow spots surrounded by black on head and body, upper eyelids are dark lavender. The conservation status of the Nymphargus frogs was largely believed to be critically endangered due to the minimal research done on this genus. Once the scope of the research was broadened the conservation status was able to be determined as being vulnerable. More frogs of different variations were found increasing the genus’ population.

<i>Pristimantis acerus</i> Species of amphibian

Pristimantis acerus is a species of frog in the family Strabomantidae. It is endemic to Ecuador and known from the area of its type locality between Papallacta and Cuyujúathe in the Napo Province and from the Llanganates National Park, Pastaza Province. This species is rated as Endangered by the IUCN. Common name Papallacta robber frog has been coined for it.

References

  1. 1 2 IUCN SSC Amphibian Specialist Group (2022). "Nymphargus anomalus". IUCN Red List of Threatened Species . 2022: e.T54946A98643606. Retrieved 23 December 2022.
  2. 1 2 3 Frost, Darrel R. (2017). "Nymphargus anomalus (Lynch and Duellman, 1973)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 19 January 2018.
  3. 1 2 3 Lynch, J. D. & Duellman, W. E. (1973). "A review of the centrolenid frogs of Ecuador, with descriptions of new species". Occasional Papers of the Museum of Natural History, University of Kansas. 16: 1–66.
  4. 1 2 3 Guayasamin, J. M.; et al. (2014–2017). Ron, S. R.; Yanez-Muñoz, M. H.; Merino-Viteri, A.; Ortiz, D. A. (eds.). "Nymphargus anomalus". AmphibiaWebEcuador. Version 2018.0. Museo de Zoología, Pontificia Universidad Católica del Ecuador (QCAZ). Retrieved 19 January 2018.