20 TREMATODES OF THE PACIFIC NORTHWEST 



Prosorhynchus facilis (Ozaki, 1924) Eckmann, 1932 



Synonyms : Prosorhynchus apertus McFarlane, 1936 

 Gotonius facilis Ozaki, 1924 



Hosts: Ophiodon elongattis B.C. McFarlane, 1936 



Ophiodon elongattis Wash. Ching, 1960b 



Additional hosts reported by Yamaguti (1953). 



Morphology: McFarlane (1936) described it as P. apertus with figures. 



Biology: The life history is unknown (see Biology section of P. squamatus 

 above). 



Family CAMPULIDAE 



Campula oblonga (Cobbold, 1858) Braun, 1900 nee Cobbold, 1876 



Synonyms: Distoma ohlongum (Cobbold, 1858) Braun, 1892 



Distoma (Brachylaiinus) ohlongum (Cobb., 1858) Stoss., 1892 

 Distomum tenuicolle Rudolphi, 1819, of Olsson, 1893 

 Brachycladium ohlongum (Cobb., 1858) Looss, 1902 

 Opisthorchis ohlonga Kowalewski, 1898 



Host : Phocaena vomerina Wash. Ching & Robinson, 1959 



For other hosts see Yamaguti (1958). 



Morphology: Described and figured by Skrjabin (1948) and by Dawes (1946). 

 No life histories are known for this genus. 



Hadwenius nipponicus Yamaguti, 1951 



Host: Phocaena vomerina Wash. Ching & Robinson, 1959 



For other hosts see Yamaguti (1951). Life histories are unknown for 

 this genus. 



Lecithodesmus goliath (van Beneden, 1858) Odhner, 1905 



Synonym : Distomum goliath van Beneden, 1858 



Host: Balaenoptera physalus B.C. Margolis & Pike, 1955 



For other hosts see Dawes (1946) or Yamaguti (1958). 



Morphology: This form has been described and figured by Braun (1902), 

 Odhner (1905), Price (1932a), Dawes (1946), and Skrjabin (1948). 



Lecithodesmus spinosus Margolis and Pike, 1955 



Host : Balaenoptera horealis B.C. Margolis & Pike, 1955 



No life history is known for this genus. There are no other reports of this 

 species. 



