Magnificent Brood Frog

The Magnificent Brood Frog has a snout-vent length between 24 and 28 mm. It is distinguished from other members of the genus by a bright rufous, rusty brown or yellow triangular patch from the upper snout to the forehead. This colouration continues along the back and is usually bordered by diffuse dark patches. The sides and forearms of the frog are uneven grey, peppered with white and dark spots. The upper arms are bright yellow. The cloaca is surrounded by a bright yellow patch or line. The ventral surface of the frog is strikingly marbled with black and white. The skin sometimes possesses scattered tubercles above, but is smooth below.

The advertisement call is a short, squelch-like 'ark' repeated at irregular intervals although males will also give rapid chirping calls when disturbed.

The tadpole is quite distinctive, appearing generally black with dark pigmentation on the upper fin and on the distal third of the lower fin. At the stage when limbs develop on the tadpole, a distinct pale patch forms where the tail meets the body. This darkens to a light yellow as the tail is resorbed. Magnificent Brood metamorphs can be distinguished from other species by the distinctive pale yellow marking above the cloaca and cream-coloured upper arms.

The Magnificent Brood Frog is known from a small area near Ravenshoe, north Queensland where it has been found at 22 discrete sites with 36 populations. All records of the species have been from above 800 m altitude.

The Magnificent Brood Frog has a limited extent of occurrence, approximately 250 km². The area of occupancy for the Magnificent Brood Frog is less than 50 ha.