Actually, this is the CHECKERED KEELBACK . Fowlea flavipunctatus.
Here this one is having a yawn, photographed by my son, Jack Ferguson, in Sai Kung.
All information here is taken from our sister site, the wonderful www.hongkongsnakeid.com so please head over there and find some more great pis and useful information about this snake:
Here a closer shots, showing a different snake with some slightly different colouration.
Active during the night and day, the Checkered Keelback is relatively common in Hong Kong. It is known to be aggressive and quick to bite as well as flattening its head and neck and rising up off the ground similar to the Red Neck Keelback.
often seen in ponds and hear water, this lovely, harmless reptile hunts small amphibians and fish.