Glypthelmins pennsylvaniensis

 

Adult Glypthelmins pennsylvaniensis from intestine of chorus frog.

 

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Life cycle stages of Glypthelmins pennsylvaniensis.  A. Egg with miricidium.  B. Hatched eggs.  Note operculum.  C. Sporocyst.  D. Cercaria.  E.  Cercaria penetrating the tail of a Pseudacris triseriata tadpole.  F.  Two cercariae migrating in the tissue of the tail of a tadpole of P. triseriata.  G. Formed metacercaria in the tail of a tadpole of P. triseriata.  H.  Twelve day old metacercaria from the tissue of a P. triseriata tadpole.  I.  Cercaria attached to a tadpole of Rana blairi.  J.  Close up of J.  K.  Metacercaria in the tail of a R. blairi tadpole. L. Cercaria penetrating the tail of Bufo woodhousii tadpole.

 

 

"Maybe you understand frogs, and maybe you don't understand 'em; and maybe you've had experience, and maybe you an't only a amature." Mark Twain