title: A natural population of Helisoma duryi in Brazil.
abstract: A well established natural population of Helisoma duryi (Wetherby) was recently found in central Brazil, where it was introduced probably with aquatic plants conveyed by aquarists. A morphological description based on the observation of 10 specimens is presented, involving the shell, cephalopodal mass, mantle organs, reproductive system and buccal apparatus.
mesh_terms: D000818:Animals; D001938:Brazil; D011153:Population; D012908:Snails / Q000033:anatomy & histology*