Inter-tidal Ecology at Narrow Neck Reef — Dellow 369 
Fig. 10. Codium adhaerens growing above its usual level on a shaded, vertical rock face. Chamae- 
sipho columna forms a white band above, Lunella smaragda is browsing on Codium , and V ermilia 
carinifera is scattered below. 
Fig. 11. Corallina — Hormosira and balanoid associations on Crab Island, showing the abrupt cessa- 
tion of the former with a slight increase in the level of the rock. 
