34 TREMATODES OF THE PACIFIC NORTHWEST 



Lecithochirium exodicum McFarlane, 1936 



Synonyms : Sterrhurus magnatestis Park, 1936 

 Lecithochirium medium Acena, 1941 

 Sterrhurus exodicus (McFarlane, 1936) Yamaguti, 1958 

 Adinosoma exodica (McFarlane, 1936) Skrjabin & Guschanskaja, 

 1955 



Dissosaccus medius (McFarlane, 1936) Skrjabin & Guschanskaja, 

 1955 



Lecithochirium magnatestis (Park, 1936) Skrjabin & Guschanskaja, 

 1955 



Hosts : Ophiodon elongatus 



Ophiodon elongatus 

 Ophiodon elongatus 



Ophiodon elongatus 

 Eopsetta jordani 

 Platyichthys stellatus 

 Sebastodes ruberrimus 

 Sebastodes maliger 



The only other record of this parasite is by Park (1936) from California. 

 Morphology: The description by Lloyd (1938) is adequate. 



Biologi^: The life history of the species is unknown. Lloyd (1938) found the 

 worm commonly at Friday Harbor, Washington; in Ophiodon elongatus, 

 but was unable to find it in the same host 70 miles away at Seattle, 

 \\'^ashington. 



Lecithochirium sp. 



Lloyd (1938) reported Lecithochirium sp. from the ctenophore Bolinopsis 

 microptera from Washington. 



Lecithophyllum anteroporum Margolis, 1958 



Hosts: Merluccius productus B.C. 



Oncorhynchus nerka B.C. 



O. gorbuscha B.C. 



Margolis, 1958 

 Margolis, 1958 

 Margolis, 1958 



There are no other reports of this species. Nothing is known of the life 

 cycle. 



Parahemiurus merus (Linton, 1910) Woolcock, 1935 



Synonyms : Hemiurus merus Linton, 1910 



Parahemiurus platyichtliyi Lloyd, 1938 

 P. parahemiurus Vaz & Pereira, 1930 

 P. atherinae Yamaguti, 1938 

 Parahemiurus harengulae Yamaguti, 1938 



Hosts: Platyichthys stellatus Wash. Lloyd, 1938 



Gasterosteus aculeatus Wash. Ching, 1960b 



