NO. 15 



VAN CLEAVE : ACANTHOCEPHALA 



511 



TABLE I 



Comparison of Nipporhynchus katsuiuonis and N. ornatus 



N. katsuiuonis 

 after Harada, 1928 



Body length, females 



up to 35 mm 



Embryos 



65 to 80 ji by 



N. ornatus 

 after Van Cleave 



about 25 mm 



59 to 69^ by 



21 to 25 



/A 



20 to 24 



1^ 



Hosts 



Euthynnus vagans 



Euthynnus alletteratus 



Katsuvjonis pelamis 



Tylosurus acus 





■'^.,v.' 



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