Sesieue 
Helix lucorum Muller 
igure 145 5 
This species is similar to H, pomatia and H, figulina, but has a larger, 
more depressed shell with darker color bands. It is either perforate or 
imperforate. Adults (with 5-6 whorls) measure 40-50 mm, in diameter. 
Distribution; Central Italy, Balkan Peninsula, Asia Minor. 


Figure 14, - A, Helix figulina Parreyss; 
B, Helix lucorum Muller. 
Helix aperta Born 
Plates, P 
Shell imperforate, smaller than H, aspersa and H, pomatia, andhas a 
relatively larger body whorl. It is thin and rather glossy with a brown or 
olive color and lacks color bands, The surface is finely sculptured with 
irregular striae. The aperture is more than 2/3 the height of the shell, 
has an ovate-lunate shape and an unreflected lip. Adult shells (with 3-4 
rapidly widening whorls) measure 20-30 mm. in diameter. 
In the resting stage this snail seals its aperture with a convex epiphragm., 
This outwardly curved membrane is thickened with calcium until it looks 
like a section of white egg shell. 
Distribution; Southern Europe, Algeria. 
This snail is a common food item of the people in its native countries. It 
has been introduced into Louisiana and California, where it has done 
