dcsimg

Description ( 英語 )

由AmphibiaWeb articles提供
Ischnocnema holti is a robust frog, measuring up to 31.7 mm in SVL. Head is rounded, and wider than long. Rostral, rictal and loreal regions are slightly concave. Eyes are prominent and laterally directed. Nostrils are lateral, located near the tip of the snout. Horizontal pupil with translucent, unpigmented (except at the edge) palpebral membrane. Tympanum somewhat distinct with the annulus partially covered by skin. A pair of post-rictal conical tubercles is present posterior to the tympanum, less conspicuous in some individuals. Ovoid tongue has posterior notch. Discoidal fold present. Subarticular tubercles low and rounded. Thenar tubercle well developed and oval-shaped. Palmar tubercle less distinct and somewhat bifid. Supernumerary palmar tubercles are present but were varied in two specimens according to Targino and Carvalho-e-Silva (2008). Relative length of fingers: IV>V>III>II. Large and emarginate heart-shaped discs on fingertips. Nuptial excrescences are white and granular on the base of finger II. Relative length of toes: IV>V>III>II>I. Subarticular tubercles are rounded and well developed. Internal metatarsal tubercle oval and well-developed; external metatarsal tubercle is small and not as prominent. Supernumerary tubercle present below toe IV. Toe discs are well-developed except for that on toe I. Appendix calcaneus is small but size varies somewhat. Dorsal texture smooth or very finely granular, with small granulations on the sides. Perianal region and the back of thighs are extensively granulated. Venter is generally areolate but sometimes smooth, and gular region is smooth. Males have a single vocal sac.Ischnocnema holti displays a wide variation in color. Dorsal color varies from dark brown to gray or green. Patterns vary from splotchy red, green, or brown marks to two longitudinal dark lines ranging from the eye to the posterior region. Supratympanic folds generally have a dark brown band. Some individuals exhibit two spots between the eyes. The belly may be entirely beige or brown; legs and arms typically have prominent stripes, but are less distinctive in some individuals. Tubercles on the hands and feet can be blackened or clear. The hidden area of flanks, thighs, and tibiae often have a vivid red or orange color. The iris is green with dark spots.

參考資料

Targino, M. and Carvalho-e-Silva, S. P. de (2008). ''Redescrição de Ischnocnema holti (Amphibia: Anura: Brachycephalidae).'' Revista Brasileira de Zoologia, 25(4), 716-723.

許可
cc-by-3.0
作者
Catherine Aguilar
原始內容
參訪來源
合作夥伴網站
AmphibiaWeb articles

Distribution and Habitat ( 英語 )

由AmphibiaWeb articles提供
Ischnocnema holti occurs in Itatiaia National Park in Brazil at elevations between 2000 and 2400 meters asl. It is generally arboreal and has been found mostly in closed forest formations, although it has also been observed in ravines, and in lichens, poáceas, and moss.
許可
cc-by-3.0
作者
Catherine Aguilar
原始內容
參訪來源
合作夥伴網站
AmphibiaWeb articles

Life History, Abundance, Activity, and Special Behaviors ( 英語 )

由AmphibiaWeb articles提供
Peak vocalization occurs at twilight, although calls can be heard throughout the entire night and even during the day. Calling locations include the leaves of shrubs (up to 4 m above ground) that are supported either horizontally or vertically, and forested ravines. This species has also been spotted calling from moss along the roadside even on rainy, cold days. However, when temperatures fall below 0°C and there is ice on the ground, which typically occurs between June and July, vocalization does not occur. Specimens collected in March were much smaller in size, which may indicate that reproduction occurs during the summer. Female ovaries are large but carry few eggs (approximately 15). Individual eggs measure between 2 and 3 mm in diameter and are wrapped in a thin, transparent membrane. Since this species is not associated with a water source, it is likely to have direct development, as do other species in the genus Ischnocnema.
許可
cc-by-3.0
作者
Catherine Aguilar
原始內容
參訪來源
合作夥伴網站
AmphibiaWeb articles

Life History, Abundance, Activity, and Special Behaviors ( 英語 )

由AmphibiaWeb articles提供
It is found within a protected area, Itatiaia National Park.
許可
cc-by-3.0
作者
Catherine Aguilar
原始內容
參訪來源
合作夥伴網站
AmphibiaWeb articles

Ischnocnema holti ( 英語 )

由wikipedia EN提供

Ischnocnema holti is a species of frog in the family Brachycephalidae. It is endemic to the state of Rio de Janeiro, Brazil, and is known from the Serra da Mantiqueira in Itatiaia and Serra dos Órgãos in Teresópolis.[2][3][4] Common name Holt's robber frog has been coined for this species.[2]

Description

Adult males measure 14–32 mm (0.55–1.26 in) and females 18–31 mm (0.71–1.22 in) in snout–vent length. The habitus is robust. The head is wider than long. The snout is rounded. The tympanum is distinct. The dorsum is smooth to granular, with small granulations on the sides. Discs on fingers and toes are well-developed. The dorsal coloration is variable: uniformly dark brown or gray, exhibiting green or irregularly distributed red spots, sometimes with two dark longitudinal bands running from the eyes to the posterior region, or light green with brown spots.[3]

Habitat and conservation

Ischnocnema holti inhabits forests, ravines, and high-altitude grasslands. Its altitudinal range in Itatiaia is 2,000–2,400 m (6,600–7,900 ft) above sea level, although a male was heard calling at 1670 m in Garganta do Registro. In Serra dos Órgãos it occurs above 1,200 m (3,900 ft).[4] Males call from vegetation up to 4 m above the ground.[3]

The species is present in the Itatiaia National Park, where its type locality lies,[1][3] as well as in the Serra dos Órgãos National Park.[4] It is abundant in both locations.[3][4]

References

  1. ^ a b Sergio Potsch de Carvalho-e-Silva, Carlos Alberto Gonçalves da Cruz (2004). "Ischnocnema holti". IUCN Red List of Threatened Species. 2004: e.T56656A11514597. doi:10.2305/IUCN.UK.2004.RLTS.T56656A11514597.en. Retrieved 17 November 2021.
  2. ^ a b c Frost, Darrel R. (2017). "Ischnocnema holti (Cochran, 1948)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 1 April 2017.
  3. ^ a b c d e Targino, Mariane; Carvalho-e-Silva, Sergio P. de (2008). "Redescrição de Ischnocnema holti (Amphibia: Anura: Brachycephalidae)" [Redescription of Ischnocnema holti (Amphibia, Anura)]. Revista Brasileira de Zoologia (in Portuguese). 25 (4): 716–723. doi:10.1590/S0101-81752008000400017.
  4. ^ a b c d Costa, Paulo Nogueira da; Carvalho-e-Silva, Sergio Potsch de; Carvalho-e-Silva, Ana Maria Paulino Telles de; Weber, Luiz Norberto (2008). "Amphibia, Anura, Brachycephalidae, Ischnocnema holti: distribution extension". Check List. 4 (3): 232–233. doi:10.15560/4.3.232.
許可
cc-by-sa-3.0
版權
Wikipedia authors and editors
原始內容
參訪來源
合作夥伴網站
wikipedia EN

Ischnocnema holti: Brief Summary ( 英語 )

由wikipedia EN提供

Ischnocnema holti is a species of frog in the family Brachycephalidae. It is endemic to the state of Rio de Janeiro, Brazil, and is known from the Serra da Mantiqueira in Itatiaia and Serra dos Órgãos in Teresópolis. Common name Holt's robber frog has been coined for this species.

許可
cc-by-sa-3.0
版權
Wikipedia authors and editors
原始內容
參訪來源
合作夥伴網站
wikipedia EN

Ischnocnema holti ( 西班牙、卡斯蒂利亞西班牙語 )

由wikipedia ES提供

Ischnocnema holti[1][2][3]​ es una especie de anfibio anuro de la familia Brachycephalidae.

Distribución geográfica

Esta especie es endémica de Brasil. Habita entre los 1200 a 2200 m sobre el nivel del mar:

  • en la Serra de Itatiaia en el estado de Río de Janeiro;
  • en la Serra dos Órgãos en el estado de São Paulo.[4]

Descripción

Esta especie mide hasta 31.7 mm.

Etimología

Esta especie lleva el nombre en honor a Ernest Golsan Holt (1889–1983).

Publicación original

  • Cochran, 1948 : A new subspecies of frog from Itatiaya, Brazil. American Museum novitates, no 1375, p. 1-3[5]

Referencias

  1. Catalogue of Life : Ischnocnema holti (Cochran, 1948) Consultado el 14 de septiembre de 2018
  2. Animal Diversity Web : Ischnocnema holti especie de anfibio anuro Consultado el 14 de septiembre de 2018
  3. ITIS : Ischnocnema holti especie de anfibio anuro Consultado el 14 de septiembre de 2018
  4. AmphibiaWeb : Ischnocnema holti (Cochran, 1948) Consultado el 14 de septiembre de 2018
  5. Amphibian Species of the World: Ischnocnema holti (Cochran, 1948) Consultado el 14 de septiembre de 2018

 title=
許可
cc-by-sa-3.0
版權
Autores y editores de Wikipedia
原始內容
參訪來源
合作夥伴網站
wikipedia ES

Ischnocnema holti: Brief Summary ( 西班牙、卡斯蒂利亞西班牙語 )

由wikipedia ES提供

Ischnocnema holti​​​ es una especie de anfibio anuro de la familia Brachycephalidae.

許可
cc-by-sa-3.0
版權
Autores y editores de Wikipedia
原始內容
參訪來源
合作夥伴網站
wikipedia ES

Ischnocnema holti ( 巴斯克語 )

由wikipedia EU提供

Ischnocnema holti Ischnocnema generoko animalia da. Anfibioen barruko Brachycephalidae familian sailkatuta dago, Anura ordenan.

Erreferentziak

Ikus, gainera

(RLQ=window.RLQ||[]).push(function(){mw.log.warn("Gadget "ErrefAurrebista" was not loaded. Please migrate it to use ResourceLoader. See u003Chttps://eu.wikipedia.org/wiki/Berezi:Gadgetaku003E.");});
許可
cc-by-sa-3.0
版權
Wikipediako egileak eta editoreak
原始內容
參訪來源
合作夥伴網站
wikipedia EU

Ischnocnema holti: Brief Summary ( 巴斯克語 )

由wikipedia EU提供

Ischnocnema holti Ischnocnema generoko animalia da. Anfibioen barruko Brachycephalidae familian sailkatuta dago, Anura ordenan.

許可
cc-by-sa-3.0
版權
Wikipediako egileak eta editoreak
原始內容
參訪來源
合作夥伴網站
wikipedia EU

Ischnocnema holti ( 法語 )

由wikipedia FR提供

Ischnocnema holti est une espèce d'amphibiens de la famille des Brachycephalidae[1].

Répartition

Cette espèce est endémique du Brésil[1]. Elle se rencontre de 1 200 à 2 200 m d'altitude :

Description

Cette espèce mesure jusqu'à 31,7 mm[2].

Étymologie

Cette espèce est nommée en l'honneur d'Ernest Golsan Holt (1889–1983)[3].

Publication originale

  • Cochran, 1948 : A new subspecies of frog from Itatiaya, Brazil. American Museum novitates, no 1375, p. 1-3 (texte intégral).

Notes et références

許可
cc-by-sa-3.0
版權
Auteurs et éditeurs de Wikipedia
原始內容
參訪來源
合作夥伴網站
wikipedia FR

Ischnocnema holti: Brief Summary ( 法語 )

由wikipedia FR提供

Ischnocnema holti est une espèce d'amphibiens de la famille des Brachycephalidae.

許可
cc-by-sa-3.0
版權
Auteurs et éditeurs de Wikipedia
原始內容
參訪來源
合作夥伴網站
wikipedia FR

Ischnocnema holti ( 葡萄牙語 )

由wikipedia PT提供

Ischnocnema holti é uma espécie de anfíbio da família Brachycephalidae. Endêmica do Brasil, onde pode ser encontrada no Parque Nacional do Itatiaia e na Serra dos Órgãos no estado do Rio de Janeiro.[2][3][4]

Referências

  1. Frost, D.R. (2014). «Ischnocnema holti». Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History, New York, USA. Consultado em 31 de outubro de 2014
  2. a b Carvalho-e-Silva, S.P.; Cruz, C.A.G. (2004). Ischnocnema holti (em inglês). IUCN 2014. Lista Vermelha de Espécies Ameaçadas da IUCN de 2014 . Página visitada em 31 de outubro de 2014..
  3. Costa, P.N.; Carvalho-e-Silva, S.P.; Carvalho-e-Silva, A.M.P.T. (2008). «Amphibia, Anura, Brachycephalidae, Ischnocnema holti: distribution and extension». Check List. Journal of Species Lists and Distribution. 4: 232–233
  4. Targino, Mariane; Carvalho-e-Silva, Sergio P. de (2008). «Redescrição de Ischnocnema holti (Amphibia: Anura: Brachycephalidae)». Revista Brasileira de Zoologia. 25 (4): 716–723. ISSN 0101-8175. doi:10.1590/S0101-81752008000400017
 title=
許可
cc-by-sa-3.0
版權
Autores e editores de Wikipedia
原始內容
參訪來源
合作夥伴網站
wikipedia PT

Ischnocnema holti: Brief Summary ( 葡萄牙語 )

由wikipedia PT提供

Ischnocnema holti é uma espécie de anfíbio da família Brachycephalidae. Endêmica do Brasil, onde pode ser encontrada no Parque Nacional do Itatiaia e na Serra dos Órgãos no estado do Rio de Janeiro.

許可
cc-by-sa-3.0
版權
Autores e editores de Wikipedia
原始內容
參訪來源
合作夥伴網站
wikipedia PT

Ischnocnema holti ( 越南語 )

由wikipedia VI提供

Eleutherodactylus holti là một loài ếch trong họ Leptodactylidae. Chúng là loài đặc hữu của Brasil.

Nguồn

Tham khảo


Hình tượng sơ khai Bài viết Eleutherodactylidae này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.


許可
cc-by-sa-3.0
版權
Wikipedia tác giả và biên tập viên
原始內容
參訪來源
合作夥伴網站
wikipedia VI

Ischnocnema holti: Brief Summary ( 越南語 )

由wikipedia VI提供

Eleutherodactylus holti là một loài ếch trong họ Leptodactylidae. Chúng là loài đặc hữu của Brasil.

許可
cc-by-sa-3.0
版權
Wikipedia tác giả và biên tập viên
原始內容
參訪來源
合作夥伴網站
wikipedia VI