on hard vertical substrates with high wave action and it grazes on encrusting coralline algae (Rhodophyta, Corallinales) such Lithophyllum incrustans (Bulleri et al., 1999).
on hard vertical substrates with high wave action and it grazes onencrusting coralline algae (Rhodophyta, Corallinales) such Lithophyllumincrustans (Bulleri et al., 1999).