The flow chart has been designed, as concisely as possible, to enable identification of a snake that has been brought in with a victim of snakebite. But there may be problems in reaching a conclusion. Colours and markings of snakes can fade with age as well as when they are nearing a moult. To enable confident identification, it may be necessary to rely on additional characters, such as the colour of the ventral aspect and the nature of the ventral scales of the tail.
A short PowerPoint programme has been incorporated, accessible from this file, to demonstrate some of the more important features mentioned as well as to illustrate non-venomous snakes that are generally considered venomous. These slides have been taken from the CD version of the Guidelines 2013 and feature images of many snakes together with explanatory notes.