n.venomous Old World snakes characterized by hollow venom-conducting fangs in the upper jaw

Evolution of the pit vipers
Snake venomics of the Armenian mountain vipers Macrovipera lebetina obtusa and Vipera raddei
Evolutionary relationships among the true vipers (Reptilia: Viperidae) inferred from mitochondrial DNA sequences.
Molecular cloning of phospholipases A 2 from venom glands of Echis carpet vipers
Does Less-than-Annual Production of Offspring by Female Vipers (Vipera aspis) Mean Less-than-Annual Mating?
Biotic and abiotic influences on activity patterns of insular pit-vipers ( Gloydius shedaoensis , Viperidae) from north-eastern China
Snake venomics of the Lesser Antillean pit vipers Bothrops caribbaeus and Bothrops lanceolatus: correlation with toxicological activ...
Comparative venom gland transcriptome surveys of the saw-scaled vipers (Viperidae: Echis) reveal substantial intra-family gene diver...
Randomized comparative trial of three antivenoms in the treatment of envenoming by lance-headed vipers (Bothrops jararaca) in São P...
GIS-based niche models identify environmental correlates sustaining a contact zone between three species of European vipers