Trimesurus sp.?

[Gianluca Polgar]

Hi, there!
Does anyone know the scientific name of this snake?
(visit the pages: http://www.alfanet.it/polgar/IMG0014.JPG,
http://www.alfanet.it/polgar/IMG0013.JPG)

I found it in the Kuala Selangor Park, Kuala Selangor, Malaysia
(Peninsular, West coast, Selangor river estuary), in 1996.
I was in a mangrove forest, on the marine fringe. Trees around there were
of Avicennia marina.
Tide was on the ebb and the snakes seemed to be surprised by the water rising.
It remained in that position for about an hour, probably waiting for the
water flowing away, or looking for some prey (?).