On the left: — This tablet of specimens is intended to show the relation and resemblances of the four 
species: Lulota peliomphala Pft., L. senckenbergiana Kob., £. lukuana Sowb., and £. callizona Crosse. 
Dextral “uhadra, the most common in Japan, has a large number of resembling species. These numerous 
species can be, however, traced to four original ones; and these four are, moreover, so closely related, and bear 
such resemblance that when many specimens are arranged properly, the cleverest analist can not tell one from 
another. 
On the right :— Distribution of land-shells in Japan. The colored part in each map shows the locality of 
the species, of which a specimen or two are attached to the bottom of the map. 
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