49880
Ampullariidae Pleuroceridae Hydrobiidae Pomatiopsidae Thiaridae Planorbidae Chilinidae Physidae Lymnaeidae Land gastropods List of land gastropods is complete for snails based on Saldago ( 2003 ) .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None