Pneu·mo·branchia | \ ˌn(y)üməˈbraŋkēə\
variants: or Pneumobranchiata \ -ˌbraŋkēˈätə , -ätə \
Definition of Pneumobranchia
in former classifications
: a group of terrestrial snails (suborder Rhipidoglossa) comprising those (as members of the genus Helicina) in which the gills are replaced by a respiratory sac
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