16 VIVIPARA. 
2. VIVIPARA INORNATA, Binney. 
Plate 14, figure 3. 
Shell globosely turbinate, thin, smooth, pol- 
ished, narrowly perforate, apex perfect, whorls 
5, sutures moderately impressed, lip large, 
broadly oval. Light olive color, white within 
the aperture. 
Length 19, diam. 17 mill. 
Chopatilo, Mexico. 
This species is more elevated and not so 
globose as intertexta. It also differs from that 
species in having a smooth polished surface, 
intertexta being covered with close revolving 
lines. 
3. VIVIPARA GEORGIANA, Lea. 
Hald., p. 23, t. vii, f, 12. 
Plate 14, fig. 5. 
To the above-quoted description I may add 
that from V. lineata, Kiist., it may be distin- 
guished by its closer volutions, which are much 
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