Squalus acanthias (Continued) 



TREBIIDAE 



Trebius caudatus Kr0yer 1838. Lewis (1966). 

 DIGENEA 



AZYGIIDAE 



O todistomum veliporum (Creplin 1837) Stafford 1904. British 

 Columbia. Stomach. Margolis-?; Newfoundland. Threlfall 

 (1969). 



BUCEPHALIDAE 



Prosorhynchus squamatus Odhner 1905. Gulf of St. Lawrence. 

 Myers (1959). 



GORGODERIDAE 



Probolitrema richiardii (Lopez 1888) Looss 1902. New Zealand. 

 Body cavity. Manter (1954a) as P. p hi 11 i pi . 



HEM.IURIDAE 



Genarchopsis muelleri (Levinsen 1881) Yamaguti 1954. Sea of 

 Japan. Stomach. Zhukov (1960a) as Genarches m. 



Derogenes varicus (Muller 1784) Looss 1901. Newfoundland. 

 Threlfall (1969). 



Hemiurus levin seni Odhner 1905. Gulf of St. Lawrence. 

 Myers (1959). 



Z00G0NIDAE 



Steganoderma formosum Stafford 1904. Newfoundland. Threlfall 

 (1969). 



HIRUDIN0IDEA 



PISCIC0LIDAE 



Branchellion l obata Moore 1952. Central California. Body surface. 



Moore (19521. 

 Calliobdella vivida (Verrill 1872) Sawyer, Lawyer and Overstreet 



1975. Newfoundland. Threlfall (1969) as C. nodulifera . 



M0N0GENEA 



DACTYLOGYRIDAE 



Amphibdelloides maccallumi (Johnston and Tiegs 1922) Price 1937. 

 Massachusetts. Price (1937b). 



42 



