“When these native slugs are young they have a striped appearance as shown. Most introduced slugs have four appendages on their heads. These native slugs do not actually eat plants but rasp algal and fungal film off leaves, branches and rocks”. When adult this eastern Australian native land slug has a distinctive red triangular pattern behind the head. Found on Red Ash (Alphitonia excelsia) at Sportsman Creek wildlife refuge.
Reference and I.D. courtesy M. Robinson, Naturalist. Australian Museum.
These freshwater bivalves live in the Sportsman Creek. They burrow under the sand and feed and breathe by sucking water through tubes called siphons which filter out microscopic animal and plant species. Many live 20-30 years and can tolerate extended dry periods. By counting the ridges or (year stripes) on it’s shell can tell the age.
Pollution Tolerance; Tolerant, rating 3.
Freshwater mussels do not occur in badly polluted water. As bivalves accumulate toxic chemicals in their tissues, even if present in tiny amounts.