蝰科（Viperidae）是一个分布于全世界的毒蛇科。蝰蛇（Viperinae）和蝮蛇（Crotalinae）是这一科的代表 。它们体粗尾细，长着三角形的头。毒液中含有血毒素，有些种类另含神经毒素。毒牙较长，能深深刺入猎物体内高效地 注入毒液。毒牙与上腭之间有关节，可在口中放倒。
加蓬咝蝰 Bitis gabonica ; Gaboon Viper
蝰蛇科 [脊椎] Viperidae
蝰蛇 [脊椎] Viper ; Vipera russelli siamensis
草原蝰 Vipera ursinii ; Vipera ursini renardi
蝰鱼 Sloane's viperfish ; Viperfish ; Sloan's Viperfish
角蝰 Horned Viper ; HORNED ADDER
树蝰属 atheris
穴蝰科 Atractaspididae
咝蝰属 Bitis
犀咝蝰 Bitis nasicornis ; rhinoceros viper
实际上栽在蝰鱼手里你可能会更安全点！
这条深海蝰鱼露出了锋利的牙齿，它正在海中寻找食物。
A deep-sea Viperfish shows of its sharp nashers as it swims along and looks for an unsuspecting four course meal for its dinner.
角蝰蛇一种角蝰属毒蛇，如带角的蝰蛇，每只眼上都有角状突起。
Any of several venomous snakes of the genus Cerastes, such as the horned viper, having hornlike projections over each eye.
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