60676
The prominent feature of an upturned aperture ( causing the adult snail to carry the shell spire down ) is reflected in its scientific name Anostoma : ano , means up , or backwards , and stoma means mouth , from the Greek .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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