A pair of beige ovisacs were visible through the skin of the ventral side of the torso near the hindlimbs of this female. It was the greatest of all individuals that were so far captured during 2004-2005 examinations (body mass = 9.80 g, broadest head width = 11.40 mm, maximum tail height = 7.53 mm, snout-anterior vent length = 69.07 mm, snout-posterior vent length = 73.39 mm, tail length = 41.18 mm).

For comparison, a female with snout-posterior vent length of 72.33 mm was the biggest of 673 individuals examined in Kushiro Marsh, Japan (Hasumi, 2001).