"Extremely venomous pit viper ( genus Bothrops), found in diverse tropical American habitats, from cultivated lands to forests." Vipers ( adders) and rattlesnakes manufacture the blood poison, which is known as haemolytic. 蛇科响尾蛇亚科洞蛇属极毒蛇类,遍布美洲热带各种生境,从耕地到热带森林。蝰蛇(小蝰蛇)和响尾蛇产生血毒液,这种毒液叫溶血素。
A venomous tropical American pit viper ( Bothrops atrox) having brown and grayish markings. 矛头蛇一种产于美洲身上有褐灰色斑点的热带毒蛇(矛头蝮矛头蝮属)