Gastropods typically have a well-defined head with two or four sensory tentacles with eyes , and a ventral foot , which gives them their name -LRB- MISC@1 gaster , stomach , and poda , feet -RRB- .

They typically have a well-defined head with two or four sensory tentacles . They also have a ventral , which gives them their name -LRB- MISC@1 gaster , stomach , and poda , feet -RRB- .
