DIGENETIC TREMATODES S3 



HemiuTus levinseni Odhner, 1905 



Synonyms : Distoma appcndindatiDn Rudolphi in Olsson, 1868, in part 



Distomum appcndiculatum Rudolphi in Levinsen, 1881, in part 



Hosts : Oncorhynchus tshaivytsclm 



O. gorbusclia 

 Sebastodes rubcrrimus 

 S. caurinus 

 Ophiodon elongatus 

 Microgadus proximus 

 Theragra chalcogrmnnm 



Wash. Lloyd, 1938 



B.C. Margolis, 1956 



Wash. Lloyd, 1938 



Wash. Lloyd, 1938 



Wash. Lloyd, 1938 



Ore. McCauley, 1960 



Wash. Ching, 1960b 



This form has also been reported from Europe (Nicoll, 1915; Issaitschikow, 

 1928, 1933; Schulman and Schulman-Albova, 1953; Poljansk}', 1955); from the 

 Far East (Layman, 1930); Arctic Atlantic (Dollfus, 1923; Odhner, 1905); 

 Atlantic coast of North America (Cooper, 1915; Linton, 1940; Heller, 1949; 

 Manter, 1925, 1926). 



Morphology: Manter (1926) and Odhner (1905) adequately described this form. 



Biology: Myers (1956) reported a mature hemiurid resembling H. levinseni in 

 the intestine of Sag it t a elegans from New Brunswick. She suggested that 

 Sagitta feeds on the same plankton as the small fish hosts which are also 

 heavily infected. 



Intuscirrus aspicotti Acena, 1947 



Host: 



Enophrys bison 



\\'ash. Acena, 1947 



This form has been reported onlj' in this one paper and is unl<nown else- 

 where. 



Lecithaster salmonis Yamaguti, 1934 



Hosts : 



ha 



Oncorhynchus tshawyt. 

 Salvelinus mahna 

 Oncorhynchus nerka 

 Oncorhynchus kisutch 

 Sebastodes maliger 

 Sebastodes inclanops 

 Leptocottu^ armatus 

 Clinocottus embryum 

 Gasterosteus aculcatus 

 Cymatog aster aggregata 

 Porichthys notatus 



Additional hosts were reported by Yamaguti (1934, 1940, 1951) from Japan. 



Biology: The life history is unknown, but Hunninen and Cable (1941, 1943b) 

 worked out the life historj' of the closely related L. confusus. 



Lecithaster sp. 



Shaw (1947) reported Lecithaster 

 hynchus tshazvytscha from Oregon. 



sp. from the chinook salmon Oncor- 



