merten's water monitor lizard is endemic to northern australia

reptile animal lizard wildlife amphibian mertens 39aph39 water monitor species endemic northern australia actively foraging opportunistic predator aquatic riparian habitats sense smell capture prey underwater grows brown black cream yellow spots paler white yellowish grey mottling throat bluegrey bars chest median dorsal keel monitors morphologically adapted nostrils swallowing borneo earless mespecies wideranging merten habitatswate iyis yis australiaforaging