Giant African Land Snail

Description:

As they develop rapidly and produce large numbers of offspring, this mollusc is now listed as one of the top 100 invasive species in the world. It is a voracious feeder, and recognized as a serious pest organism affecting agriculture, natural ecosystems, and human health and commerce The adult snails have a height of around 7 centimetres (2.8 in), and their length can reach 20 centimetres (7.9 in) or more. The shell has a conical shape, being about twice as high as it is broad. Either clockwise (sinistral) or counter-clockwise (dextral) directions can be observed in the coiling of the shell, although the right-handed (dextral) cone is the more common. Shell colouration is highly variable, and dependent on diet. Typically, brown is the predominant colour and the shell is banded.