Dipsa
Encyclopedia
Dipsa is a tiny, mucus like, extremely venomous snake from Medieval bestiaries
. They were so venomous that their victim would die before becoming aware he'd been bitten.
Bestiary
A bestiary, or Bestiarum vocabulum is a compendium of beasts. Bestiaries were made popular in the Middle Ages in illustrated volumes that described various animals, birds and even rocks. The natural history and illustration of each beast was usually accompanied by a moral lesson...
. They were so venomous that their victim would die before becoming aware he'd been bitten.