Hanne & Jens Eriksen / Saw scaled viper (Echis carinatus) with tongue out, captive, Oman, February

Hanne & Jens Eriksen / Sind saw scaled viper (Echis carinatus sochureki) captive, head pattern, Oman, February

Hanne & Jens Eriksen / Sind saw scaled viper (Echis carinatus sochureki) curled up, captive, Oman, February

Hanne & Jens Eriksen / Sind saw scaled viper (Echis carinatus sochureki) captive, Oman, February

Hanne & Jens Eriksen / Sind saw scaled viper (Echis carinatus sochureki) captive, Oman, February

Jeff Rotman / Milking a tiny but deadly Saw scaled viper (Echis carinatu) for anti-venom, Taramani, Tamil Nadu, India

Jeff Rotman / Milking a tiny but deadly Saw scaled viper (Echis carinatu) for anti-venom, Taramani, Tamil Nadu, India

Daniel Heuclin / Eastern saw-scaled viper (Echis carinatus sochureki) studio shot, captive, from Pakistan, Afghanistan, Iran.

Michael D. Kern / Egyptian saw scaled viper (Echis pyramidum) captive, from N Africa

Tony Phelps / Sindh saw-scale viper (Echis carinatus sochureki) in sand desert habitat, Empty Quarter, UAE, April 2008

Tony Phelps / Sindh saw-scaled viper (Echis carinatus sochureki) in desert, Sharjah, UAE

David Shale / Saw scaled viper {Echis carinatus} United Arab Emirates

David Shale / Saw scaled viper {Echis carinatus} United Arab Emirates

Tony Phelps / Sindh Saw-scaled Viper (Echis carinatus sochureki) Sharjah, UAE

Tony Phelps / Sindh Saw-scale Viper, (Echis carinatus sochureki) Sahrjah, UAE

Tony Phelps / Sindh Saw-scale Viper (Echis carinatus sochureki) Sharjah, UAE

Tony Phelps / Sindh Saw-Scale Viper (Echis carinatus sochurecki) sensing air with tongue, Sharjah, UAE

Tony Phelps / Sindh Saw-scale Viper (Echis carinatus sochurecki) sensing air with tongue, Sharjah, UAE

Barry Mansell / Saw scaled viper basking on rock {Echis carinatus} South Africa

Robert Valentic / Saw scaled viper {Echis carinatus}