with one exception they did not indicate in 

 which pinniped (s) each of the nematode spe- 

 cies was found. Their Figure 2 bears the 

 caption "Ulcer crater, California sea lion, 

 male, adult, imbedded with Anisikis [sic] 

 similis ad." Kreis' (1940) specimens of A. 

 similis from the Basel Zoological Gardens 

 were obtained from "Otaria jubata Desm." 

 Although it is not certain, we are considering 

 this host to be Eumetopias jubatus. 



Anisakis simplex (Rudolphi, 1809) Baylis, 1920 



Hosts: Balaenoptera borealis - sei whale; 

 Berardius bairdi - North Pacific giant bottle- 

 nose whale; Orcinus orca - killer whale; 

 Phocoenoides dalli - Dall porpoise; Physeter 

 catodon - sperm whale. 



Location: Stomach. 



Locality: British Columbia. 



Recorded by: Mueller (1927a, b); Cornwall 

 (1928) ; Margolis and Pike (1955). 



Remarks: The records from Phocoenoides dalli 

 and Orcinus orca are reported here for the 

 first time. 



Anisakis typica (Diesing, 1860) Baylis, 1920 

 Syns.: Ascaris typica Diesing, 1860. 



Ascaris simplex of Leidy, 1886. 



Host: Unidentified dolphin (IDelphinus sp.) . 



Location: Stomach. 



Locality: Unspecified region of the Pacific. 



Recorded by: Leidy (1886). 



Remarks: This record is included here with 

 reservations because it is not known if the 

 host was captured in waters off North Amer- 

 ica. Stiles and Hassall (1899) re-examined 

 Leidy's specimens and identified them as 

 Ascaris typica. Lyster (1940) and Margolis 

 and Pike (1955) regarded Anisakis typica 

 (Diesing, 1860) as a synonym of Anisakis 

 simplex (Rudolphi, 1809), but recent studies 

 (Kagei, Oshima, and Takemura, 1967; Ka- 

 gei, 1969) support the view that they are 

 distinct species. 



Contracaecum sp. 



Host: Lagenorhynchus obliquidens - Pacific 



white-sided dolphin. 

 Location: Brain. 

 Locality: California. 

 Recorded by: Martin et al. (1970). 



Contracaecum sp. (larva) 



Host: Pusa hispida - ringed seal. 



Location: Stomach. 



Locality: Alaska. 



Recorded by: Johnson et al. (1966). 



Contracaecum oscukitum (Rudolphi, 1802) 

 Baylis, 1920 

 Syn.: Ascaris osculata Rudolphi, 1802. 



Hosts: Callorhinus ursinus - northern fur 

 seal; Eumetopias jubatus - Steller sea lion; 

 Mirounga angustirostris - northern elephant 

 seal; Phoca vitulina richardi - harbour seal; 

 Zalophus californianus - California sea lion. 



Location: Stomach and intestine, abnormally 

 in brain. 



Localities: Alaska; British Columbia; Cali- 

 fornia; Baja California; Baltimore Zoo. 



Recorded by: Stiles and Hassall (1899); 

 Schroeder and Wegeforth (1935) ; Caballero 

 and Peregrina (1938); Herman (1942); 

 Fisher (1952); Margolis (1956); Flores- 

 Barroeta et al. (1961); Keyes (1965); John- 

 son et al. (1966); Johnston and Ridgway 

 (1969); Dailey and Hill (1970) ; Fleischman 

 and Squire (1970). 



Remarks: See Anisakis similis for comments 

 on Schroeder and Wegeforth's (1935) rec- 

 ords. 



Crassicauda sp. 



Hosts: Balaenoptera borealis - sei whale; 

 Balaenoptera physalus - fin whale; Megap- 

 tera novaeangliae - humpback whale. 



Location: Kidneys. 



Locality: California. 



Recorded by: Rice (1963). 



Crassicauda pacifica Margolis and Pike, 1955 



Host: Balaenoptera physalus - fin whale. 



Location: Kidneys. 



Locality: British Columbia. 



Recorded by: Margolis and Pike (1955). 



Dipetalonema odendhali Perry, 1967 



Host: Zalophus californianus - California sea 

 lion. 



Locations: Muscle fascia, thoracic and ab- 

 dominal cavities. 



Locality: California (wild and captive sea 

 lions). 



Recorded by: Perry (1967); Dailey and Hill 

 (1970). 



