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.Three speices of damselflies examined for H. eccentricus metacercariae.
Halipegus metacercaria recovered from naturally infected damselflies, and adult H. eccentricus in the eustachian tube of an experimentally infected bullfrog.
Living and stained Halipegus eccentricus in the eustachian tube of an experimentally infected bullfrog.
The first intermediate snail host Physa gyrina and eggs of H. eccentricus.
Development of Halipegus eccentricus cistophorus cercaria in an experimentally infected Physa gyrina snail first intermediate host. Note the emergence of the cercaria body through the delivery tube (E-I).
Development of Halipegus eccentricus metacercaria in an experimentally infected ostracod. Note the skirt like bladder of the metacercaria.