14 AKT. 11. — S. TANAKA. 



back, and one less distinct band along the lateral 

 canal phantasma. 



2) Distance between insertion of clasper and its point of 

 division almost twice that between the latter and tip 

 of clasper ; spinous roughness of dorsal spine less 

 distinct ; anal notch deeper ; color uniformly dark 

 brown, with four indistinct bands in the posterior 

 part of body jordani. 



b) No caudal filament. 



3) Distance between insertion of clasper and its point of 

 division nearly twice that between the latter and tip 

 of clasper ; sjiinous roughness of dorsal spine as dis- 

 tinct as in phantasma ; anal notch deeper than in 

 jordani ; color brown, distinctly marbled with small 

 pale spots, with four indistinct lighter bands in the 

 posterior part of body. owstoni. 



II. No anal notch. (Two dorsal fins.) 



a) Claspers rather short, bipartite. Caudal filament very 

 long. 



4) Point of division of clasper in the middle of its length ; 

 spinous roughness of dorsal spine rather indistinct ; 



color whitish with dusky parts here and there 



mitsukurii. 



b) Claspers long, tripartite. No caudal filament. 



5) Distance between insertion of clasper and its point of 

 division nearly twice that between the latter and tip 

 of clasper ; spinous roughness of dorsal spine very 

 indistinct; color uniformly deep purple... ^^^rp^^rasce?^s. 



