Dendrelaphis bifrenalis, also called Boulenger's bronzeback, Boulenger's bronze-back, and Travancore bronze-brown snake, is a colubrid snake native to Eastern Ghats of Southern India and Sri Lanka.[1][2] It was first described by George Albert Boulenger in 1890.[3] Dendrelaphis wickrorum from Sri Lanka was previously confused with this species.[4]
This oviparous, diurnal and arboreal species can be found in trees, shrubs and bushes in wet and intermediate zones of lowlands to mid hills.[1] However, there are references of finding it from Mullaitivu, Vavuniya and Trincomalee of northern dry zone of Sri Lanka.[5]: 218 It is often encountered on low vegetation, however, and it may also descend to the ground in search of food. Arboreal and feeds on frogs, geckos, skinks and agamid lizards. Sometimes descends to the ground, and it is said that when moving on the ground it has a peculiar habit of keeping its head and 1/8 of the forebody erect.[1][6] These are very active and do not get panicked easily. Dendrelaphis is one of the quickest snakes to escape and hide, when exited they expose the skin underneath scales. Ventral keels help them to climb trees.[1]
Cylindrical, narrow, slender body is present with a dorso-ventrally flattened pear-shaped head. The neck region is clear. Long and compressed snout is present. The tip of it is broad and rounded. The nostrils are present laterally and they are rounded. Round pupil is present in large eyes. Prehensile tail is 1/3 of the body of the snake. Dorsal body of the snake is copper color. Top of the labials and chin is cream or light green color. The tongue is red in color. There is a black broad bar at the sides of the head and run along the eye to the neck region. Lateral corner of the anterior body has black cross strips in a diagonal angle. Two yellow lines run on the lateral sides of the body. Sometimes these lines may be margined by black dots. Ventral body is yellowish green. These are oviparous snakes. They lay eggs in tree hollows. Five long eggs are laid by them at a time. Adult snakes grow about 700–900 mm. Mid-body consists of 15 rows of scales. Vertebrals are clear and enlarged. Dendrelaphis bifrenalis differ in having a red color tongue from other Dendrelaphis species.[3]: 338 [5]: 215 [6]
Dendrelaphis bifrenalis, also called Boulenger's bronzeback, Boulenger's bronze-back, and Travancore bronze-brown snake, is a colubrid snake native to Eastern Ghats of Southern India and Sri Lanka. It was first described by George Albert Boulenger in 1890. Dendrelaphis wickrorum from Sri Lanka was previously confused with this species.
Dendrelaphis bifrenalis Dendrelaphis generoko animalia da. Narrastien barruko Colubridae familian sailkatuta dago.
Dendrelaphis bifrenalis Dendrelaphis generoko animalia da. Narrastien barruko Colubridae familian sailkatuta dago.
Dendrelaphis bifrenalis est une espèce de serpents de la famille des Colubridae[1].
Cette espèce est endémique du Sri Lanka[1]. Sa présence est incertaine en Inde.
Dendrelaphis bifrenalis[1] est un serpent arboricole diurne. Dans sa description[2] Boulenger indique que les spécimens en sa possession mesurent environ 105 cm dont 35 cm pour la queue.
Dendrelaphis bifrenalis est une espèce de serpents de la famille des Colubridae.
Multimedia w Wikimedia Commons Dendrelaphis bifrenalis – gatunek nadrzewnego azjatyckiego[5] węża z rodziny połozowatych (Colubridae).
Zwierzęta te zalicza się do rodziny połozowatych[4], do której zaliczano je od dawna. Starsze źródła również umieszczają Dendrelaphis w tej samej rodzinie Colubridae, używając jednak dawniejszej polskojęzycznej nazwy: wężowate albo węże właściwe. Poza tym Colubridae zaliczają do infrarzędu Caenophidia, czyli węży wyższych. W obrębie rodziny rodzaj Dendrelaphis należy natomiast do podrodziny Colubrinae[5].
Dendrelaphis bifrenalis spotykany jest w południowych Indiach, gdzie należy do rzadkości, i na Sri Lance, gdzie zdaje się występować pospoliciej[4].
Bytuje na terenach położonych nie wyżej, niż 910 m nad poziomem morza[4].
Jak inni przedstawiciele swego rodzaju[5], wiedzie nadrzewny tryb życia na drzewach, krzewach i w buszu[4].
Problemem dla tego gatunku jest utrata środowiska naturalnego związana z rolnictwem i wyrębem lasów[4].
Dendrelaphis bifrenalis – gatunek nadrzewnego azjatyckiego węża z rodziny połozowatych (Colubridae).
Dendrelaphis bifrenalis là một loài rắn trong họ Rắn nước. Loài này được Boulenger mô tả khoa học đầu tiên năm 1890.[1]
Bài viết liên quan phân họ rắn Colubrinae này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. Dendrelaphis bifrenalis là một loài rắn trong họ Rắn nước. Loài này được Boulenger mô tả khoa học đầu tiên năm 1890.
