Acipenser medirostris (Continued) 



Amphilina japonica Goto and Ishii 1936. Amur Basin, USSR. 

 Body cavity. Dubinina (1971). 



MONOGENEA 



CAPSALIDAE 



Nitzchia quadritestes Pratt and Herrmann 1962. Columbia River. 

 Tip of gill filaments, anterior parts of mouth. Pratt and 

 Herrmann (1962). 



DICLYBOTHRIIDAE 



Paradiclybothrium p acificum Bykhovsky and Gussev 1950. Tartar 

 Strait, USSR. Gills. Bykhovsky and Gussev (1950). 



Acipenser transmontanus - White Sturgeon 



CESTODA 



AMPHILINIDAE 



Amphilina bipunctata Riser 1948. British Columbia. 

 Body cavity. Margolis 5 . 



C0PEP0DA 



CALIGIDAE 



Lepeophtheirus salmonis (Kr0yer 1838). British Columbia. Kabata 

 (1973). ~ 



DIGENEA 



DER0PR0STIDAE 



Cestrahelmins rivularis Becker 1971. Columbia River. Intestine. 

 Becker (1971). 



HEMIURIDAE 



Tubulovesicula lindbergi (Layman 1930) Yamaguti 1934. Washington. 

 Stomach. Becker (1970b). 



MONOGENEA 



CAPSALIDAE 



Nitzschia quadritestes Pratt and Herrmann 1962. Columbia River. 

 Tips of gill filaments, anterior parts of mouth. Pratt and 

 Herrmann (1962). 



58 



