Bushmaster Viper Long Thought by Both Colonists and Natives to Sing (image) Pensoft Publishers Share Print E-Mail Caption The bushmaster is the largest viper in the western hemisphere. It is highly venomous and feared by inhabitants of rainforests in Central and South America. Its scientific name is Lachesis muta. Credit Jorge Valencia, FaunaWebEcuador Usage Restrictions CC-BY 4.0 Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.