46 TREMATODES OF THE PACIFIC NORTHWEST 



Podocotyle pacifica Park, 1937 



Host : Gasterostcus aculeatus Wash. Ching, 1960b 



Podocotyle pedunculata Park, 1937 



Host : Lcptocottiis armatus Wash. Ching, 1960b 



Podocotyle reHexa (Creplin 1825) Odhner 1905 



Synonym : Disiomum reflexuni Creplin 1825 



Hosts : Sygnathus griseo-Uneatxts B.C. McFarlane, 1936 



Leptocottus armatus B.C. McFarlane, 1936 



Leptocottus armatus Ore. *Coos County 



Additional hosts have been reported from Europe bv Nicoll (1915), Odhner 

 (1905), Baylis and Jones (1933), and Dawes (1946). 



Morphology: This form is close to P. atomon and Dawes (1947) thought that 

 it might be a synonym. It was briefly described by Odhner (1905) and by 

 Dawes (1947). We know of no other description. The life history is un- 

 known. For life history of a related form see P. atomon above. 



Podocotyle shawi Mcintosh, 1939 



Synonyms: Allocreadium shawi (Mcintosh, 1939) Yamaguti, 1953 

 Cainocreadium shawi (Mcintosh, 1939) Yamaguti, 1958 



Hosts : Oncorliynchus kisutch Ore. Mcintosh, 1939 



Sahno gairdncrii Ore. Mcintosh, 1939 ; Shaw, 1947 



Salmo clarkii Ore. Mcintosh, 1939; Shaw, 1947 



Not known outside of the Pacific Northwest. 



Taxonomy: The position of this species is uncertain. Manter (1947) doubted 

 that it belonged to Podocotyle and suggested perhaps Peracrcadium or 

 Cainocreadium. Yamaguti (1953) accepted the former suggestion and placed 

 it in the subgenus Peracrcadium of Allocreadium. Later Yamaguti (1958) 

 transferred the species to Cainocreadium. Mcintosh (1939) stated that the 

 cirrus was spiny, but did not show spines in his figure. Wc have examined 

 many specimens and failed to observe spines. Manter (1947) cited the pres- 

 ence of spines as a reason for removing the species from Podocotyle. We 

 will retain it in Podocotyle pending results of work in progress. 



Morphologj': The only adequate description is by Mcintosh (1939). Nothing 

 is known of the life history. 



Podocotyle sinusacca Ching, 1960 



Host : Leptocottus armatus Wash. Ching, 1960b 



Podocotyle sp. 



Shaw (1947) reported Podocotyle sp. from .S'almo gairdncrii and .Sahno 

 clarkii from Oregon. 



'' Asterisks denote new (previously unpublished) reports of the parasite in the area. 



