We've been carefully measuring suctions disk to finger ratios of all the Amolops that we find, so if this article is correct; www0.hku.hk/ecology/porcupine/por32/32-vert-3-frog.htm
then this would be a new recording outside of Lantau for this species in the Hong Kong territory.
Seems to call very infrequently and so far we've only seen or heard them in this one place. Was hidden in dense undergrowth in a marsh.