CONTENTS 



Page. 



The golden tkout of the southern High Sierras. By Barton Warren Evermann. (Lssued 



May 19, 1906.) ! ■ 1-51 



The physiological effects upon pishes op changes ix the density and salinity op water. 



By Francis B. Sumner. (Issued May 22, 1906. ) 5.3-108 



Opisthobranchi.\te Mollusca from Monterey Bay, California, and vicinity. By F. M. 



MacFarland. (Issued May 24, 1906. ) .' 109-151 



HiRUDiNEA AND Oligoch.eta COLLECTED IN THE Great Lakes REGION. By J. Percy Moore. 



( Issued August 25, 1906. ) 153-171 



The fi.shes of Samoa: Description op the species found in the ARcniPEL.Kio, with a pro- 

 visional CHECK LIST OP THE FISHES OF OcE.KXTA. By Uavid Starr Jordan and Alvin 

 Seale. (Issued Dccenil icr 15, lVJu6 ) 1 73-4.55 



General inde.x 457-488 



