348 Pub. Puget Sound Biol. Sta. Vol. 2, No. 53 



PLATE 54 

 Figs. 1 and 2. Desmarestia ligulata (Lightfoot) Lamouroux. X 0.26. 

 Fig. 3. Desmarestia herhacea (Turner) Lamouroux. X 0.26. 



