The oldest colubrid fossils are indeterminate vertebrae from Thailand and specimens of the genus Nebraskophis from the U.S. state of Georgia, both from the Late Eocene. The presence of derived colubrids in North America so early on, despite their presumed Old World origins, suggests that they originated even earlier. [ 1 ]

colubrid, any member of the most common family of snakes, Colubridae, characterized by the complete absence of hind limbs, the absence or considerable reduction of the left lung, and the lack of teeth on the premaxilla and usually having a loose facial structure, relatively few head scales, and ventral scales as wide as the body.

游蛇科（學名：Colubridae），又稱黄颔蛇科，是爬蟲綱 有鱗目 蛇亞目下的一個蛇科，是眾多蛇科中擁有最多物種的一個科，數量幾乎佔據世上過半的總蛇種。 游蛇科下的蛇類特性較為普通，亦較為常見。 大部分游蛇科下的蛇種都是無毒的（又或者含有輕量而且對人體不構成傷害的毒素），因 …

头背面覆盖大而对称的鳞片，背鳞 覆瓦状 排列 成行 ； 腹鳞 横展宽大。 上颌骨 不能竖立，其上生有 细齿 ；少数种类为后沟牙类毒 蛇 ，即最后2～4个细齿形成较大而有纵沟的沟牙。 形态和习性多样性丰富，树栖、穴居、水栖或半水栖。 卵生 。 我国有36属141种，分隶于闪皮蛇亚科Xenodermatinae、钝 ...

[1] [15] [13] As the result of this, Zaher et al. (2009) proposed to rename the clade as "Colubroides", restricting Colubroidea to the clade Colubridae and several related families that were formerly colubrid subfamilies. [1] [15] [13] Below is a phylogeny of colubroid snakes found in many analyses: [1] [15] [13]

The Colubridae family is by far the largest family of snakes, with more than 2,000 species. These snakes are commonly referred to as colubrids or colubrid snakes.

At least one generalist colubrid species, the Japanese rat snake (Elaphe climacophora) has anteriorly curved hypapophyses on its vertebrae like those in Dasypeltis and Boiga westermanni and uses them to crush birds' eggs (Gans and Ohshima, 1952), although the egg shell is passed as fragments through the alimentary canal.

Colubrid snakes appear to figure in human commerce in two primary ways. First, many species are sold in the pet trade, including large numbers of wild-caught individuals of many species. Several groups of colubrids have become sufficiently …

A colubrid (from Latin coluber, snake) is a snake that is a member of the Colubridae family. Colubridae is the largest snake family, and includes about two-thirds of all known living snake species. However, colubrids are certainly not a natural group, and many are more closely related to other groups, such as elapids, than to each other.

colubrid，英语单词，主要用作名词、形容词，作名词时译为“无毒蛇类”，作形容词时译为“无毒蛇的；游蛇的”。