40 



D. S. JORDAN AND J. O. SNYDER. 



Family IX.— T.A.WNII>/E. 



Genus : ISUROPSIS Gill. 



17. — Isuropsis glaucus (Müller & Henle.) Aozame. 



Nagasaki (Bürger). 



Genus: LAMNA Ctivier. 



18. — Lamna cornubica (Ginelin.) 



" Japan." 



Family X.— SIITSIJHLFRIIVIIKF. 



Genus : MITSUKURINA Jordan. 



19. — Mitsukurina owstoni Jordan Mitsutoirizame. 



Yokohama* ; in deep water. 



Family XI.— PRISTIOPHORII>;e. 



Genus : PRISTIOPHORUS Müller & Henle. 



20. — Pristiophorus japonicus Günther. ... Nokogirizame, Hokoluka. 



Nagasaki. 



Sub-order: RHIN/E. 



Family XII.— SQI!ATIXI1>.F. 



Genus : SQUATINA Duméril. 

 (Rhina Rafinesque.) 



21. — Squatina japonica (Rleeker.) Kasuzame, Korozame. 



(Sqwxtina vulgaris Temaiinck & Schlegel ; not of Cuvier.) 



Yokohama* ; Nagasaki. 

 Order : CYCLO SPONDYL1. 

 Family XIII.— SQFAMD/T: 



Genus : SQUALUS Linnaeus. 



(Acanthias Risso). 



22. — Squalus sucklii (Girard) Tsunozame. 



(Bering Sea and Eastern Pacific. Recorded by Schlegel and 



Nystrom as Acanthias vulgaris from Nagasaki.) 



