359] NORTH AMERICAS PARAMPHISTOMIDAE—STUNKARD 



Paramphistomum 



Stephanopharynx 



Cotyloplioron 

 Cladorchinae Fischoeder 1901 



Cladorehis 



Taxorchis 



Chiorchis 



Pseudodiscus 



Microrchis 



Pseudocladorchis 



Watsonius 



Pfenderius 

 Diplodiscinae Colm 1904 



Diplodiseus 



Opisthodiscus 



Catadiscus 

 Gastrothylacinae Stiles aud Goldberger 1910 



Gastrothylax 



"Wellmanius 



Carmyerius 



Fischoederius 

 Schizamphistominae Looss 1912 



Schizamphistomum 



{Gen. 710V.) spinulosum 



Alassostoma 



Genera of uncertain position 

 (new subfamily) Fischoeder 1903 



Balanorcliis 



-(new subfamily) see text p. 71 



Zygocotyle 



