A new species of green pit vipers of the genus Trimeresurus Lacépède, 1804 is described from the lowlands of western Arunachal Pradesh state of India. The new species, Trimeresurus salazar, is a member of the subgenus Trimeresurus, a relationship deduced contingent on two mitochondrial genes, 16S and ND4, and recovered as sister to Trimeresurus septentrionalis Kramer, 1977. The new species differs from the latter in bearing an orange to reddish stripe running from the lower border of the eye to the posterior part of the head in males, higher number of pterygoid and dentary teeth, and a short, bilobed hemipenis. Description of the new species and T. arunachalensis Captain, Deepak, Pandit, Bhatt & Athreya, 2019 from northeastern India in a span of less than one year highlights the need for dedicated surveys to document biodiversity across northeastern India.

中文翻译：

---

1804 年，来自印度阿鲁纳恰尔邦西部的竹叶青蛇属（爬行类、蛇类、蝰蛇科）的一个新种

1804 年，在印度阿鲁纳恰尔邦西部的低地描述了一种新的绿蝰蛇属 Trimeresurus Lacépède，1804 年。新物种 Trimeresurus salazar 是竹叶青亚属的成员，根据两个线粒体基因 16S 和 ND4 推断出一种关系，并于 1977 年作为 Trimeresurus septentrionalis Kramer 的姐妹恢复。新物种与后者的不同之处在于带有一个橙色男性从眼睛下缘到头部后部的红色条纹，更多的翼状齿和牙齿，以及短的双瓣半阴茎。新物种的描述和 T. arunachalensis 船长、Deepak、Pandit、Bhatt 和 Athreya，