FISHES FROM BERING SEA AND KAMCHATKA. 



67 



With this may be compared 14 specimens from Point Clarence, Alaslca, immediately south of Bering 

 Strait; 



Thirteen specimens from tliree distinct stations in the northeastern part of Bristol Bay agree with 

 tne above except in the wider range (but not the prevailing number) in the anal fin, and the occasional 

 presence of 4 plates. 



There agree with the above also two specimens from Herendeen Bay, midway of the northern shore 

 of the Alaska Peninsula, as both possess the following formula: 



Dorsal vii-7; anal 10; pectoral 12-12; plates 3. 



All of the above, from Bering Strait south to Herendeen Bay, can be distinguished at sight from 

 any memberof the a« group by the longer slender mental barbel, as figured by Steindachner in the type 

 oi barbala. (Ichthyologische Beitrage, vol. V, pi. 5.) 



There remain for consideration numerous specimens from Kamchatka, largely from the vicinity of 

 Petropavlovsk. These agree essentially in fin formula and number of plates with typical barbata, and 

 are widely different from the Unalaska material, which is here considered the northern representative 

 of the aix series. The Kamchatkan form differs from typical barbata only in the shortening of the mental 

 barbel, which is, however, slender and movable, and thus of the barbata type. The table below gives 

 data in the case of 46 Kamchatkan specimens: 



Additional complexity is occasioned by considering representatives from the Kiuile Islands and 

 northern Japan, but these have not yet received a thorough examination. 



Sarritor frenatus (Gilbert). 



List op Stations. 



The above localities on Petrel Bank and the Komandorski Plateau. 



