3 50 Shell Life 



elevated positions. It agrees with the Dwarf in 

 carrying its shell upright when gliding, though most 

 of the genus carry theirs to one side. The eggs are 

 retained until they hatch. 



The Bounded Snail {H. rotundata) has a general 

 resemblance to the previous two species, but is much 

 larger, exceeding a quarter of an inch in diameter. 

 The shell is more opaque, coloured a yellow-brown 

 with curved red-brown stripes at regular intervals 

 across each whorl. The whorls are also adorned with 

 numerous transverse ribs, except the first. The 

 IJeriphery or circumference of the shell is bluntly 

 keeled. The mouth is half-moon shaped, and in old 

 specimens is strengthened by a white rib inside. The 

 umbilicus is wide and deep. The animal is very shy. 

 This very common species may be found almost 

 anywhere by turning over stones lying on the earth ; 

 it also affects the shelter of loose bark on decayed 

 trees, the moss, leaves, and decayed wood that may be 

 found about old stumps. 



The Beautiful Snail {H. ].mlcliella) is another dimin- 

 utive species, the shell measuring only one-eighth 

 of an inch across, depressed but convex above, of a 

 greyish-white colour, transparent and glossy. It is 

 ornamented with slightly raised curved ridges across 

 the three and a half whorls, which are separated by a 

 rather deep suture. The nearly circular and slightly 

 oblique mouth has a thick and expanded lip. The 

 umbilicus is rather large, and discloses all the interior 

 of the spire. It is a widely distributed species, whose 

 favourite lurking places are under stones and logs, at 

 the roots of grass and among moss. 



The Prickly Snail {H. acideata), though also small, 



