- Who
- African giant snail
- What
- 39.3 centimetre(s)
- Where
- United Kingdom (Hove)
- When
The largest known land gastropod is the African giant snail Achatina achatina, the largest recorded specimen of which measured 39.3 cm (15.5 in) from snout to tail when fully extended, with a shell length of 27.3 cm (10.75 in) in December 1978. It weighed exactly 900 g (2 lb). Named Gee Geronimo, this snail was owned by Christopher Hudson (1955–79) of Hove, East Sussex, UK, and was collected in Sierra Leone in June 1976.