### Identification Commonly known as the Long-thumbed Frog or Barking Marsh Frog, this medium-sized amphibian (reaching 50mm) is a master of floodplain camouflage. Look for a pale grey or olive-brown base color heavily splattered with irregular, dark-green or chocolate blotches. The absolute "field mark" to look for is the vivid red or orange patch on the upper eyelid—it looks like the frog is wearing a dash of sunset-colored eyeshadow. While it resembles the Spotted Grass Frog (*L. tasmaniensis*), the Long-thumbed Frog lacks a clean, pale mid-dorsal stripe and has a much more "warty" texture to its skin.
### Habitat & Range This is a quintessential species of the Murray-Darling Basin. They are specialists of the inland river systems of New South Wales, southern Queensland, and northern Victoria. You’ll find them in ephemeral wetlands, billabongs, and floodplains. They are particularly fond of "cracking clay" soils; when the sun bakes the earth, these frogs retreat deep into the fissures of the mud to stay moist.
### Behaviour A nocturnal specialist, you’re most likely to encounter them after heavy rain. During the breeding season (spring to autumn), the males create a distinctive soundscape. Their call is a sharp, explosive "unk" or "rok," remarkably similar to the distant bark of a small dog. Unlike many frogs that attach eggs to plants, the female *L. fletcheri* beats a protein-rich secretion into a buoyant, white foam nest that floats like a meringue on the water’s surface, protecting the eggs from desiccation.
### Diet They are opportunistic "sit-and-wait" predators. They remain motionless near the water’s edge or a mud crack, lunging with a sticky tongue at any invertebrate that wanders too close. Their diet consists primarily of beetles, ants, spiders, and small crickets.
### Fascinating Fact Despite its name, the "long thumb" isn't on its hand! The name refers to a significantly elongated inner metatarsal tubercle on the hind foot. This specialized "thumb" acts like a small, sturdy spade, allowing the frog to efficiently maneuver through the heavy, sticky clays of the Australian interior.