A genus of digenetic flukes (family Echinostomatidae), particularly common in wading and fish-eating birds; the species Echinochasmus perfoliatus var. japonicus is reported as a rare intestinal parasite of humans in Japan.
[echino- + G. chasma, open mouth]
a genus of flukes of the family Echinostomatidae. Includes E. perfoliatus (in intestines of carnivores).