title: Paragonimus mexicanus (Trematoda) in Costa Rica in two new intermediate hosts: Ptychophallus richmondi and Ptychophallus tumimanus (Crustacea: Decapoda).
mesh_terms: D000818:Animals; D003386:Brachyura / Q000469:parasitology*; D003364:Costa Rica; D010238:Paragonimus / Q000302:isolation & purification*