黑眉蝮Gloydius intermedius

41.黑眉蝮Gloydius intermedius

地方名:贴树皮

曾用名:岩栖蝮

形态特征:体型较粗大,成体全长雄性444~650mm,雌性461~770mm。头呈三角形,不宽扁,瞳孔直立枣核形。具管牙;有颊窝。头背面有深色斑。自眼后至口角,有一斜行向后的宽约4mm黑褐色带状斑,因而得名“黑眉蝮”。两性色斑差异较明显,雄性体色鲜艳,多呈肉红色或土红色,雌性体色深暗,呈褐色或土黄色。体背自颈至尾有浅色窄横斑(39~42)+(9~11)个,体前部的横斑多为左右两小段交错相接,向后侧连成横斑,或有左右两段交错者。腹面及颔部黄白或乳白,向后则只较背色稍浅。上唇鳞多7枚,呈2-1-4式,下唇鳞多11枚。背鳞脊部数行强棱,最外1行微棱,23-23-17行。腹鳞150~168枚,尾下鳞36~51对,肛鳞二分。

生活习性:生活于山区林缘,灌丛及石砬子附近。以鼠类为食,偶食鸟类。卵胎生,5月下旬至6月初有逐偶现象,8月下旬至10月初为产仔期,每产1~7条,刚出生幼蛇体全长182~240mm,体重3.3~8.3g。

地理分布:国内分布于东北三省和内蒙古东部。国外分布于俄罗斯(海参崴)及朝鲜半岛。

环渤海地区分布:辽宁。

生存现状:近危(NT)。

41.Gloydius intermedius

Description Adults up to 444-650mm in TOL, large body; females up to 461-770mm TL.Head is triangle-shaped, not broad and flat; pupils erect and in jujube nuclei-shape;tubular teeth; bilateral pits; dark spots on head dorsum; one slanting row of black and brown band-shape spot, in the width of 4mm, from the back of eyes to the mouth, naming“Gloydius intermedius”; obvious difference between spots of two sexes, male's body color is bright mostly fleshy or earthy, but female's body color is dark, often brown or soil yellow;39-42+9-11 light colored narrow row of spots, from the neck to the tail on the body dorsum;row spots on the front mostly interlaced in two small parts, extending to the dorsum and forming into row spots, or interlaced on both sides; the ventral and jaw are yellowish white or milky white, but the color of the vernal lighter than the dorsum; 7 supralabials are in 2-1-4 row-arrangement; 11 infralabials; several rows of strong tubercles on the dorsum, the outermost row is soft, in 23-23-17 row-arrangement; 150-168 ventral scales; 36-51 pairs of subcaudals; 2 anal plates on the anus.

Behaviour Gloydius intermedius live in mountain forest edge, brushes woods and stone hills nearby.They feed on mice and occasionally birds.They are ovoviviparous, and they mate from late May to early June.They prawn from late August to early October, and lay 1-7 eggs at a time.The newborn snakes up to 182-240mm TOL and 3.3-8.3g in weight.

Distribution China: Heilogjiang, Jilin, Liaoning and eastern Inner Mongolia.At abroad:in Russia (Hesenwai) and the Korean Peninsula.Distribution around Bohai Sea: in Liaoning Province.

Conservation Near Threatened (NT).

黑眉蝮色斑变异个体

黑眉蝮白化个体