Balanus balanus found at depths of up to and grows on bedrock, boulders, pebbles and shells. It seems to favour habitats with strong currents and when overcrowding occurs, adopts different shapes to fit the space available. It is often found growing alongside another barnacle, "Balanus crenatus". Other species often found in its vicinity include "Tubularia larynx", "Obelia geniculata", "Pomatoceros triqueter", "Pecten maximus", "Hydroides norvegica", "Chlamys opercularis" and "Sertularia" species. Coralline algae was often present as were the whelk, the European edible sea urchin ("Echinus esculentus"), the great spider crab ("Hyas araneus") and the shore crab ("Carcinus maenas"). The main predator is the
False garden mantis False garden mantis The false garden mantis ("Pseudomantis albofimbriata") is one of the most common species of mantis in Australia. Females reach 70 mm while males reach 50 mm. The false garden mantis is either green or brown but rarely may come in other colours. They have a distinctive dark spot on the femur of each raptorial foreleg. Females have short wings that only cover half of the abdomen, whereas Males have wings that cover the full length of the abdomen. Males sometimes have yellow triangular markings on the underside of the abdomen. They are widely distributed over Australia and