40 LIMNZX IDA. 
summer. It often climbs damp walls to a height of 
two or three feet. It varies considerably. 
Var. I. major. Larger, more tumid. 
Var. II. elegans. Larger, solid, slender. 
Var. III. minor. Smaller, thin, dark horn-colour. 
Var. LV. albida.. Smaller, milk white. 
Var. V. sealariformis. Smaller, whorls somewhat 
disjoined. 
Var. VI. microstoma. Small, whorls swollen, mouth 
contracted. 
8. L. GLABRA (smooth). 
Cylindrical, tapering gradually to a blunt point, thin, 
glossy, greyish horn-colour, striated closely and regularly 
in line of growth; whorls seven to eight, rounded; mouth 
small for the size of the shell. 
This is a local species inhabiting ponds and ditches 
in Yorkshire, Lancashire, Cheshire, and other parts of 
the country. I have often found them crawling up 
the stalks of reeds several inches out of the water. 
Some that I kept in an aquarium crawled up the glass 
side and tumbled out, thus falling victims to their 
adventurous disposition. 
Var. elongata. Spire more produced. 
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