咝蝰属
咝蝰属（学名：Bitis），又称膨蝰属，是蛇亚目蝰蛇科蝰亚科下的一个有毒蛇属，主要分布于非洲及阿拉伯半岛南部。 咝蝰属成员中同时有世界上最巨型和最细小的蝰蛇，牠们被称为「膨蝰」的原因，是因为所有咝蝰在遇到危机时，会不断重复地将身体膨胀、收缩，并配合发出响亮的嘶嘶声，产生威吓敌人的效果。 咝蝰属的模式种是广泛地分布在非洲全土的鼓腹咝蝰（B. arietans）。 目前共有14个种已被确认。
Bitis
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Bitis 噝蝰属
Bitis is a genus of venomous vipers found in Africa and the southern Arabian Peninsula. It includes the largest and the smallest vipers in the world. Members are known for their characteristic threat displays that involve inflating and deflating their bodies while hissing and puffing loudly. The type species for this genus is B. arietans, which is also the most widely distributed viper in Africa. Currently, 14 species are recognized.