Cornu aspersum (Brown Garden Snail).
 
 
 
Size: approx. 10-15 mm. Photo: 08/10/11, 10 am.


This common snail has been spreading from Europe into many different countries. Like most land snails it is nocturnal but can also be found after rain showers. This species has three frequently used synonyms: Helix aspersa, Cantareus aspersus, and Cryptomphalus aspersus. According to Wikipedia, it moves at a top speed of 1.3 cm/s. Mating requires 4-12 h; self-fertilization is possible. Oviposition (30-120 eggs) occurs 3-6 days later. These snails are edible ("petit gris"). 
 
 
wikipedia:
http://en.wikipedia.org/wiki/Helix_aspersa
UF:
http://entomology.ifas.ufl.edu/creatures/misc/gastro/brown_garden_snail.htm