Chlamydogobius is a genus of Australian freshwater gobies. Most species live in extreme environments; for example, several species of Chlamydogobius are found in the water that emerges from geothermal springs, such as the Dalhousie goby, found in the waters around Dalhousie Springs. To cope with extremely low oxygen levels, they will emerge from the water to "gulp" air (known as aerial respiration). They also will position themselves over beds of algae to capture the produced oxygen. Chlamydogobius fish are able to change their colours to blend in with their environments.