Coral Snakes of the Orinoco River Delta

[Bluesman]

I worked in the Orinoco River delta for about 120 days. The medical officier had a large book on snakes of South America. I almost picked up a small slender black snake with a bright yellow belly. I found the picture in the med officier's snake book. It was a coral snake but I forgot the genus & species.

Are any of you here familiar with or have a book with pictures of the snakes of the Orinoco River delta in Venezuela.

Thanks
Bluesman