84 G Canadian Arctic Expedition, 1913-1918 



Plate XVIIa. 



Fig. 1. Gersemia rubiformis (Ehr.). From a photograph under water, of a large alcoholic 

 specimen, only partly contracted, from Grantley harbour, Port Clarence, Alaska, 

 station 20d, in 2-3 fathoms. About natural size. See page 6g. 



Figs. 2 and 3. Drifa gloDicrala VerriU. Front and back views, photographed under water, from 

 (he largest Hudson bay alcoholic specimen tl( scribed. See page 46 G. All photo- 

 graphed by Professor Alexander Petrunkevitch. 



