黄纹石龙子Plestiodon capito

34.黄纹石龙子Plestiodon capito

地方名:石龙子、油蛇子

形态特征:成体全长一般在200mm以下,全身光滑无棱,通身被圆鳞,尾下正中一行鳞宽大。有上鼻鳞和后鼻鳞,后颏鳞两片,环体中段鳞22~24行。幼体时体背黑褐色,体背有五道浅黄色纵纹自头部延伸至尾中前部,体背正中一道纵纹在头背部有明显的分叉。腹面灰白色,尾部为鲜艳的亮蓝色。随年龄增长体背纵纹及尾部蓝色逐渐暗淡。成体后背面黄褐色,体背纵纹模糊或消失,体两侧具深褐色侧纹,尾蓝色消失,与体同色。

生活习性:栖息于山区和丘陵地带,多见于林缘、溪边的草丛、灌木丛和山坡路边。日出后有在较大的石板上晒太阳的习性。捕食各种小型无脊椎动物。繁殖季节在6—7月,在其活动区域内常可见到雌雄体相互追逐。雄体腹面及肛区变得微红。卵生,卵白色、椭圆形;每窝产卵6枚左右。产卵后,雌体在一定时间内有护卵习性。

地理分布:中国特有种,见于辽宁、河北、北京、天津、陕西、宁夏、甘肃、四川、湖北。

环渤海地区分布:除山东未见报道外,均有分布。

生存现状:无危(LC)。

Squamata Scincidae Plestiodon

34.Plestiodon capito

Description Less than 200 mm in TOL; smooth body skin without tubercles; the body is covered with round scales; scales broad in the middle row under the tail.Two supranasal and postnasal; two submentals; 22-24 rows of scales on the around of mid-body; juvenile's and subadult's dorsum is dark brown; five light yellow stripes, from the head to the front tail; one stripe, a distinct bifurcation to the head dorsum, on the middle of the dorsum; the ventral is greyish white; tail is bright blue; the stripe of the dorsum and blue color of the tail gradually dim while growing up; adult dorsum is yellowish brown; dorsum stipes blurring or disappearing; side stipes are dark brown; blue color of the tail disappearing, in accord with the body color.

Behaviour Plestiodon capito live in mountainous and hilly areas, they mostly can be found on the edge of the forest, in the grass beside the stream, from the roadside in the bush and on the hill.The habit of Plestiodon capito is basking in the sun on larger slabs of stone after sunrise and preying on a variety of small invertebrates.During the breeding season,male and female Plestiodon capitos often chase each other in their activity areas from June to July.The ventral side and anus of the male become reddish.They are born as eggs, which are white in color and in the shape of oval.They lay about 6 eggs every time.After laying eggs, males have the habit of protecting eggs at a certain time.

Distribution Native to China, in Liaoning, Hebei, Beijing, Tianjin, Shaanxi, Ningxia,Gansu, Sichuan and Hubei.Distribution around Bohai Sea: everywhere except Shandong Province, where has not been reported.

Conservation Least Concern (LC).