264 Isthmus Barriers Separating Fish Faunas 



C. Japan and Hawaii. 



Genera chiefly confined to these regions 3 



Genera of wide distribution 79 



Total genera common 82 



Total in both regions 396 



D. Japan and Australia. 



Genera chiefly confined to these regions 13 



Genera of wide distribution (chiefly East In- 

 dian) 122 



Total genera common 135 



Total in both regions 533 



E. Japan and Panama. 



Genera chiefly confined to these regions 2 



Genera of wide distribution 89 



Total genera common 91 



Total in both regions 499 



F. Japan and the West Indies. 



Genera chiefly confined to these regions 5 



Genera of wide distribution. . 108 



Total genera common 113 



Total in both regions 520 



G. The Mediterranean and the Red Sea. 



Genera confined to the Suez region. o 



Genera of wide distribution (chiefly Indian). . . 40 



Total genera common 40 



Total in both regions 295 



H. West Indies and the Mediterranean. 

 Genera chiefly confined to the equatorial At- 

 lantic ii 



Genera of wide distribution. . . 59 



Total 70 



Total in both regions 373 



