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Phrynocephalus versicolor

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Phrynocephalus versicolor, the Tuvan toad-headed agama, is a species of agamid lizard found in desert areas of China and Mongolia. It was first described by the Russian herpetologist Alexander Strauch, director of the Zoological Museum at the Imperial Academy of Sciences at St. Petersburg.[2]

Subspecies

Three subspecies, including the nominate one, are recognized:[3]

  • Phrynocephalus versicolor doriai Bedriaga 1909
  • Phrynocephalus versicolor siebenrocki Bedriaga 1909
  • Phrynocephalus versicolor versicolor Srauch 1876

Description

Phrynocephalus versicolor grows to a length of about 13 cm (5 in) including the tail, which is longer than the combined head and body. The head is large and rounded and the blunt snout has an oblique profile which makes the nostrils easily visible from above. There is no transverse fold of skin across the shoulders. There are large scales which are smooth and unribbed along the spine. Other dorsal scales are thickened with their rear margin slightly raised, which gives the lizard a rough appearance. Scales on the ventral surface are extended into short spines. The tail is long and tapering, flattened at the base and cylindrical further from the body. It is thickened at the base in the male. The colour is variable. The dorsal surface of the body is olive or leaden-grey with two to five transverse bars of brownish-black, the most intense colour being just behind the shoulders and there is often an orange patch in the armpit. The legs are also banded with darker colour and the underparts are white. The tail has up to nine dark bars, some of them extending to the underside, and the tip is black underneath.[4]

Distribution and habitat

Phrynocephalus versicolor occurs in Mongolia and in the provinces of Xinjiang, Gansu, Ningxia, and Nei Mongol in China. It is found on stony plains and slopes, in canyons and on sand dunes with sagebrush and other sparse scrubby vegetation.[1] Much of its habitat is more than 3,200 m (10,500 ft) above sea level and the temperature can vary from −30 °C (−22 °F) in the winter to 40 °C (104 °F) in the summer. There is very little precipitation, and the small amount of rainfall is concentrated in mid-summer.[4]

Biology

Well-camouflaged and alert

Phrynocephalus versicolor hibernates during the winter and is active between March and the end of September. During summer it remains in its burrow during the cold nights and midday heat. The burrow is unbranched, has a single entrance and ends in a chamber some 10 to 13 cm (4 to 5 in) beneath the surface of the ground. This lizard feeds on small invertebrates such as ants, flies, grasshoppers and ground beetles. When rain falls, it stands with its hind legs straightened, its front legs bent and its head lowered, so that water landing on its back trickles towards its mouth.[4]

A female becomes sexually mature when about 9 cm (3.5 in) long. In the rainy season she digs a hole in damp ground some 5 cm (2 in) deep in which she lays a clutch of up to five white or pink-tinged eggs. Incubation takes about thirty days and the young are about 5 cm (2 in) long when they hatch. They exhibit great diversity in colour and adopt a stance similar to that of adults when rain is falling.[4]

Status

Phrynocephalus versicolor has a wide range and is common in its arid habitats. The population is stable and no particular threats have been identified so the International Union for Conservation of Nature has assessed its status as being of "least concern".[1]

References

  1. ^ a b c Ananjeva, N.B.; Terbish, K.; Munkhbaatar, M.; Melnikov, D.; Bi, J.; Shi, L.; Wang, Y. (2019). "Phrynocephalus versicolor". IUCN Red List of Threatened Species. 2019: e.T170416A48741700. doi:10.2305/IUCN.UK.2019-2.RLTS.T170416A48741700.en. Retrieved 19 November 2021.
  2. ^ "History". Department of Herpetology of the Zoological Institute of the Russian Academy of Sciences. 2008-09-08. Retrieved 2014-11-08.
  3. ^ Phrynocephalus versicolor at the Reptarium.cz Reptile Database. Accessed 9 November 2014.
  4. ^ a b c d "Phrynocephalus versicolor" (in Dutch). Nederlandse Bond Aqua Terra. Archived from the original on 2013-09-06. Retrieved 2014-11-08.
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Phrynocephalus versicolor: Brief Summary

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Phrynocephalus versicolor, the Tuvan toad-headed agama, is a species of agamid lizard found in desert areas of China and Mongolia. It was first described by the Russian herpetologist Alexander Strauch, director of the Zoological Museum at the Imperial Academy of Sciences at St. Petersburg.

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Phrynocephalus versicolor ( Spanish; Castilian )

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La agama cabeza de sapo multicolor (Phrynocephalus versicolor) es una especie de lagartijas agamas encontradas en las áreas desérticas de China y Mongolia. Fue primeramente descrita por el herpetólogo ruso Alexander Strauch, director del Museo Zoológico en la Academia Imperial de Ciencias de San Petersburgo.[1]

Subespecies

Hay cuatro subespecies, incluyendo la aquí descrita, reconocida

  • Phrynocephalus versicolor hispidus Bedriaga 1909
  • Phrynocephalus versicolor doriai Bedriaga 1909
  • Phrynocephalus versicolor kulagini Bedriaga 1909
  • Phrynocephalus versicolor versicolor Srauch 1876

Descripción

La Phrynocephalus versicolor crece hasta una longitud de alrededor de 13 cm incluyendo su cola, la cual es mucho más larga que su cabeza y cuerpo combinado. Su cabeza es larga y redondeada y su hocico achatado tiene un perfil oblicuo lo que hace que sus fosas nasales sean visibles fácilmente desde arriba. No existe un pliegue transversal de piel a través de los hombros. Hay grandes escamas que son uniformes y sin surcos (ribetes) a través de la espina dorsal. Otras escamas dorsales son gruesas con su borde posterior ligeramente levantadas, lo que da a la lagartija una apariencia rugosa.[2]

Distribución y hábitat

Phrynocephalus versicolor se encuentra en Mongolia y en las provincias de Xinjiang, Gansu, Ningxia y Nei Mongol en China. Se encuentra en llanos y laderas pedregosas, en cañones y dunas con artemisas y otras clases vegetación árida escasa. Mucho de su hábitat está a más de 3200 metros (10500 pies) sobre el nivel del mar y la temperatura puede variar entre -30°C (-22 °F) y de noche 40°C (140°F) de día. Hay muy poca precipitación y la cantidad pequeña de lluvia se concentra a mitad del verano.

Biología

Phrynocephalus versicolor hiberna durante el invierno y están activas entre marzo y a finales de septiembre. Durante el verano se mantiene en su madriguera durante las noches frías y el mediodía caluroso. La madriguera no tiene ramificaciones, solo tiene una entrada y termina en una cavidad de alrededor de 10 a 13 cm (4 a 5 pulgadas) por debajo de la superficie de la tierra. La lagartija se alimenta de pequeños invertebrados tales como hormigas, moscas, saltamontes y escarabajos. Cuando la lluvia cae, se para con sus patas traseras extendidas, sus patas delanteras dobladas y su cabeza baja, para que de esa manera el agua que cae sobre su espalda gotee hacia su boca.

La hembra es sexualmente madura cuando alcanza los 9 cm (3.5 pulgadas) de longitud. En la época lluviosa cava un hoyo en la tierra húmeda de unos 5cm (2 pulgadas) de profundidad en donde ella pone una nidada de hasta cinco huevos blancos o rosados matizados. La incubación demora cerca de treinta días y la cría es de 5cm (2pulgadas) de largo cuando eclosionan. Ellos demuestran grande versatilidad en color y adoptan una postura similar a la de los adultos cuando la lluvia cae.

Estado de Conservación

Phrynocephalus versicolor tiene una amplia variedad y es más común en su hábitat árido. La población es estable y ninguna amenaza en particular ha sido identificada, de esa manera la Unión Internacional para la conservación de la Naturaleza ha asignado su estado de “preocupación menor”.

Referencias

  1. «History». Department of Herpetology of the Zoological Institute of the Russian Academy of Sciences. 8 de septiembre de 2008. Consultado el 8 de noviembre de 2014.
  2. «Phrynocephalus versicolor» (en neerlandés). Nederlandse Bond Aqua Terra. Archivado desde el original el 6 de septiembre de 2013. Consultado el 8 de noviembre de 2014.
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Phrynocephalus versicolor: Brief Summary ( Spanish; Castilian )

provided by wikipedia ES

La agama cabeza de sapo multicolor (Phrynocephalus versicolor) es una especie de lagartijas agamas encontradas en las áreas desérticas de China y Mongolia. Fue primeramente descrita por el herpetólogo ruso Alexander Strauch, director del Museo Zoológico en la Academia Imperial de Ciencias de San Petersburgo.​

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Phrynocephalus versicolor ( Basque )

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(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.");});
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Phrynocephalus versicolor: Brief Summary ( Basque )

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Phrynocephalus versicolor Phrynocephalus generoko animalia da. Narrastien barruko Agamidae familian sailkatuta dago.

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Phrynocephalus versicolor ( French )

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Phrynocephalus versicolor est une espèce de sauriens de la famille des Agamidae[1].

Répartition

 src=
Aire de répartition de l'espèce Phrynocephalus versicolor selon l'UICN (consulté le 9 janvier 2013).

Cette espèce se rencontre[1] :

Liste des sous-espèces

Selon Reptarium Reptile Database (9 mai 2012)[2] :

  • Phrynocephalus versicolor doriai Bedriaga, 1909
  • Phrynocephalus versicolor hispidus Bedriaga, 1909
  • Phrynocephalus versicolor kulagini Bedriaga, 1909
  • Phrynocephalus versicolor versicolor Strauch, 1876

Publications originales

  • Bedriaga, 1909 : Amphibien und Reptilien. Wissenschaftliche Resultate der Reisen N.M. Przewalskijs durch Zentralasien. Zoologische Teil. Band 3. Part 1. Lacertilia. Sankt-Petersburg.
  • Prjevalski, 1876 : Mongoliya i Strana Tangutov. Tryokhletneye puteshestviye v Vostochnoj Nagoruoj Asii. Société géographique impériale de Russie.

Notes et références

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Phrynocephalus versicolor: Brief Summary ( French )

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Phrynocephalus versicolor est une espèce de sauriens de la famille des Agamidae.

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Phrynocephalus versicolor ( Vietnamese )

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Phrynocephalus versicolor là một loài thằn lằn trong họ Agamidae. Loài này được Strauch mô tả khoa học đầu tiên năm 1876.[1]

Hình ảnh

Chú thích

  1. ^ Phrynocephalus versicolor. The Reptile Database. Truy cập ngày 31 tháng 5 năm 2013.

Tham khảo


Hình tượng sơ khai Bài viết Họ Nhông này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.
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Phrynocephalus versicolor: Brief Summary ( Vietnamese )

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Phrynocephalus versicolor là một loài thằn lằn trong họ Agamidae. Loài này được Strauch mô tả khoa học đầu tiên năm 1876.

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变色沙蜥 ( Chinese )

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二名法 Phrynocephalus versicolor
(Strauch, 1876)[1] Phrynocephalus versicolor distribution.png

变色沙蜥学名Phrynocephalus versicolor)为鬣蜥科沙蜥属爬行动物。分布于哈萨克斯坦吉尔吉斯斯坦蒙古以及中国新疆宁夏内蒙古等地,一般栖息于荒漠草原、干旱的荒漠、半荒漠及与干草原交界的边缘地区。该物种的模式产地在内蒙古阿拉善沙漠[1]

参考文献

  1. ^ 1.0 1.1 中国科学院动物研究所. 变色沙蜥. 《中国动物物种编目数据库》. 中国科学院微生物研究所. [2009-04-11]. (原始内容存档于2013-12-03).
 src= 维基物种中的分类信息:变色沙蜥  src= 维基共享资源中相关的多媒体资源:变色沙蜥 小作品圖示这是一篇蜥蜴小作品。你可以通过编辑或修订扩充其内容。
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变色沙蜥: Brief Summary ( Chinese )

provided by wikipedia 中文维基百科

变色沙蜥(学名:Phrynocephalus versicolor)为鬣蜥科沙蜥属爬行动物。分布于哈萨克斯坦吉尔吉斯斯坦蒙古以及中国新疆宁夏内蒙古等地,一般栖息于荒漠草原、干旱的荒漠、半荒漠及与干草原交界的边缘地区。该物种的模式产地在内蒙古阿拉善沙漠

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