Species Description: Doughty P, Roberts JD 2008 A new species of Uperoleia (Anura: Myobatrachidae) from the northwest Kimberley, Western Australia. Zootaxa 1939:10-18.
Description: Adult males measure 18.0-21.5 mm SVL. One adult female measured 20.5 mm SVL. Small rotund body with short limbs. Small head with an oval tongue. Eyes protrude slightly and the anterior corner of the eye is covered by a flap of skin. Pupil is rhomboidal in shape. Lacks vomerine teeth, but has maxillary teeth. Rounded canthus rostralis and moderately steep, slightly concave loreal region. Infralabial glands (one to three) present beneath jaw angle. The tympanum is covered by the skin and parotoid glands. Unwebbed fingers with moderately developed tubercles (one each on Fingers I and II; two each on Fingers III and IV). Finger I shorter than Finger II. Short legs. Toes are basally webbed, have weakly developed flanges along their length, and moderately developed tubercles underneath (one on Toes I, II; two on Toes III and V; three on Toe IV). Inner metatarsal tubercle weakly developed. Outer metatarsal tubercle generally spatulate in shape (sometimes round) and protruding perpendicularly from the foot. Usually has parotoid, dorsolateral, and coccygeal glands. Cloacal flap is present. Scattered low tubercles on the skin of the dorsum, head and limbs. Ventral surfaces are moderately granular. Males have a nuptial pad on the inner part of Finger I, from halfway down the finger to the base of the wrist and barely onto the palm (Doughty and Roberts 2008).
In life, specimens from the mainland had a slightly different coloration than those from Katers Island. In mainland specimens, the dorsum ranged from a charcoal black to dark brown with random smaller dark blotches and faint bars on the limbs. Slight orange-red tint on dorsum, and orange-red blotches on the parotoid glands, snout tip, submandibular glands, vertebral area, and upper arms. Pale bluish-white specks are found on the tip of the snout, through the loreal region, along the sides and on the undersurfaces of the limbs. Pale white ventral surfaces speckled with dark spots, except for abdomen which is uniformly pale (neither white nor speckled). Chin margin is slightly more pigmented. Iris is chestnut brown with a green tint. Creamy white fingers and toes (Doughty and Roberts 2008).
Specimens from Katers Island had slightly lighter coloration and orange-red inguinal glands (Doughty and Roberts 2008).
In preservative, the body is almost completely black with a tint of orange and red visible in some areas (Doughty and Roberts 2008).
Distribution and Habitat
Life History, Abundance, Activity, and Special Behaviors
Doughty, P. and Roberts, J. D. (2008). ''A new species of Uperoleia (Anura: Myobatrachidae) from the northwest Kimberley, Western Australia.'' Zootaxa, 1939, 10-18.
Written by Stephanie Ung (stephanieung AT berkeley.edu), UC Berkeley
First submitted 2009-11-09
Edited by Kellie Whittaker (2010-04-12)
Species Account Citation: AmphibiaWeb 2010 Uperoleia micra <http://amphibiaweb.org/species/7216> University of California, Berkeley, CA, USA. Accessed Oct 22, 2017.
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Citation: AmphibiaWeb. 2017. <http://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 22 Oct 2017.
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