LAND SNAILS. EZ5 
(Pl. VI., fig 44; Pl. X., fig. 106).—The shell is 
oblong-oval,very thin, glossy,irregularly striated, 
and of an amber colour; the whorls are three in 
number; the spire is short; and the aperture 
ovate, two-thirds of the length of the shell, which 
is from a half to three-fourths of an inch. 
This is an abundant species among herbage in 
marshy places, on the banks of ditches and pools ; 
among sedges, grasses, and flags; in very hot 
weather, when the plants are desiccated, con- 
sequent upon the drying up of the water in the 
ditches, the amber snail descends to the lower 
parts of the stems of the plants upon which it 
feeds, whence it appears to follow the receding 
water at a certain distance. 
S. putris is a fossil of the Mammaliferous Crag 
of Bramerton, and of the Pleistocene marls of 
Copford, &c. 
Succtnea ELEGANS—(the Elegant Amber Snail) 
(Pl. X., fig. 107) — also known by the specific 
appellations of Pfeifferi and gracilis, is a closely 
allied species, or it may be but a variety of the 
last. The shell is more slender in shape, and 
with a longer and more pointed spire, and some- 
what smaller in size; the shell, when containing 
the animal, appears of a greyish-blue, or bluish 
or greenish-black, for the body of the snail is 
black. 
This species, though frequently associated with 
