FISHES OF JAPAN. 



127 



13. Prionace glauca Müller & Henle. 



Tokyo (Imperial Museum) ; Misaki (Imp. Univ.) 



Genus : Scoliodon Müller & Henle. 



14. Scoliodon walbeehmi (Bleeker). 



Genus : Triakis Müller & Henle. 



15. Triakis scyllium Müller & Henle. 

 Family VIII. Sphyrnidse. 



Genus : Sphyrna Rafinesque. 



16 Sphyrna zygaana (Linnœus). 

 Family VIII (b). Alopiidae. 



Genus : Alopias Rafinesque. 

 16 (b). Alopias vulpes (Linnaeus ) 



Common from Tokyo* to Nagasaki * 

 Family IX Lamnidse. 



Genus : Isuropsis Gill. 



17. Isuropsis glauca (Müller & Henle). 

 Genus : Lamna Cuvier. 



1H. Lamna cornubica (Gmelin). 



We find no trustworthy record of the occurrence of this 



widely distributed shark in Japan. 

 Family IX (b). Carcharodontidse. 



Genus : Carcharodon Smith. 

 18 (b) Carcharodon carchaiias (Linnaeus). 



The jaws of this huge shark, from off Tokyo are in the Imperial 



University. 

 Family X. Mitsukurinidae. 



Genus : Mitsukurina Jordan. 



19. Mitsukurina owstoni Jordan. 



Family X (b). Dalatiidœ. 



Genus : Dalatias Rafinesque. 

 (Sey 'innon hinu a Blain ville ; Scymnus Cuvier). 



