虎斑颈槽蛇Rhabdophis tigrinus
地方名：野鸡脖子
曾用名：虎斑游蛇
形态特征：成体全长900～1300mm。头部椭圆形，眼较大，瞳孔圆形。体背草缘色或绿色，体前段两侧有绿色、红色、黑色相间排列的横斑（辽宁东部及吉林有部分个体体背为浅蓝色、深蓝色或蓝黑色，体前段横斑为浅蓝色或粉色，间有黑色），枕部的黑斑较宽，自正中线向两侧后方斜行至侧面又向前折，直达腹鳞，在颈部正中线上有一个明显的颈槽，有15个鳞片长，颈槽的皮下有成对的皮肤腺，受刺激时能喷出白液体。上唇鳞7枚，呈2-2-3式，下唇鳞8～9枚。背鳞均起棱，19-19-17行。腹鳞146～188枚，尾下鳞42～73对，肛鳞二分。
生活习性：生活于平原、丘陵或山区，多栖息在多草的田园及水边附近的草丛中。白天活动，行动敏捷，受惊发怒时常压扁，颈部竖起膨扁，并作攻击姿态。以蛙、蟾、蝌蚪为食，偶也吃鱼和鼠类。卵生，6—8月产卵，每产10～37枚。
地理分布：国内广布，除青海、云南、广东、海南、台湾均有分布；国外分布于朝鲜、俄罗斯远东部分。
环渤海地区分布：均有分布。
生存现状：无危（LC）。
注：虎斑颈槽蛇台湾亚种R.tigrinus formosanus分布于台湾，虎斑颈槽蛇指名亚种R.tigrinus tigrinus分布于日本。
Squamata Colubridae Rhabdophis
54.Rhabdophis tigrinus lateralis
Description Adults up to 900-1,300mm.Head is in oval shap; eyes are big; pupils are round; body dorsum is grass or green; green, red and black lateral stripes on both sides of the front part of the body some individuals in eastern Liaoning Province and Jilin Province have light blue, dark blue or black blue, and the lateral stripes in front of the body are light blue or pink, with black in between; wide and black spots on the occipital area, the oblique line from the median line to the side of the dorsum folded forward to the side then forward to ventral scales; the white liquid being ejected when stimulated; 7 supralabials are arranged in 2-2-3 rows and 8-9 infralabials.Dorsal scales are ribbed and arranged in 19-19-17 rows; 146-188 ventral scales; 42-73 pairs of subcaudals; 2 anal plates on the anus.
Behaviour Rhabdophis tigrinus lateralis live in plains, hills or mountains, and inhabits the grassy pastoral and grass near the water's edge.They move quickly during the day.When they are frightened, they are often flattened, and the neck is erected and swelled.They feed on frogs, crickets, and crickets, and even eat fish and rodents.This species is ovoviviparous.They spawn in June to August and produce 10-37 eggs at a time.
Distribution Widely in China; not in Qinghai, Yunnan, Guangdong, Hainan , and Taiwan in China.At abroad: in North Korea and the Russian Far East.Distribution around Bohai Sea: everywhere.
Conservation Least Concern (LC).
Notes R.tigrinus formosanus can be found in Taiwan, China, and R.tigrinus tigrinus can be found in Japan.
