458 PEOCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



Species most abundant northward ( Alaslran fauna) 



Species most abundant centrally (Calil'orniau fauna) 



Species most abundant southward (Lower Califomian fauna) 



Total 



Species found also in Atlantic Ocean 



Species not obtained by the Commission . 

 Species not recorded by pi-evious writers 



270 

 28 

 15 

 66 



* Cephaloscyllium laticeps J. & G., probably not of Dum6ril. 



t Carcharodon rondeleti M. & H. 



I Bdellostoma jjolylrema Grd. ; Bdellostoma atouti Lock. 



Indiana State University, 



Bloomington, November 30, 1880. 



