Alichigaii Geological and 

 Biological Survey. 



Publication 20; Biology 4. 

 Plate VI. 



SOUTH 'IWIX LAKK, STATION 7, LOCJKIXf; 1:AST. II.oAI'IXC SPA K( ; A M IM 

 LEAVES XOT SHOWN' O.X ACCOUNT OT WAVES. 



