Rod Williams / Malayan pit viper (Calloselasma rhodostoma) South East Asia

Robert Valentic / Malayan pit viper {Calloselasma rhodostoma} in ambush pose amongst leaf litter on the dappled forest floor, Sumatra, Indonesia

Tony Phelps / Malayan pit viper {Calloselasma rhodostoma} female sunning at the base of a tree, captive

Tony Phelps / Female Malayan pit viper {Calloselasma rhodostoma} captive

Rod Williams / Malayan pit viper {Calloselasma rhodostoma} captive, from Thailand and Java

David Welling / Malaysian pit viper {Calloselasma rhodostoma} captiv

Robert Valentic / Malayan pit viper (Calloselasma rhodostoma) female, Krabi, Thailand. Highly venomous species.