Mistaken for a Kanburian bamboo viper

Terra cotta on olive green. The name on the tank was Trimeresurus kanburiensis, Kanburian bamboo viper. Unlike the all green bamboo vipers that looked much the same and only seldom had any collecting data, there was no mistaking this one for any taxon that I had seen before.

It was in the 1970s and Patti and I were keeping and breeding a fair number of palm and bamboo vipers of both New and Old World origin. I wondered, as I looked at the little snake then before me, whether I would ever be able to pair it up.

I decided nothing ventured nothing gained so when we left the dealer's that afternoon, the Kanburian pit viper accompanied us. It turned out that this snake lived for many years, but I was unable to pair it.

In fact, it was not until 1990s that I saw another of these terra cotta on olive beauties. Rather than T. kanburiensis these snakes (there were about a half dozen of them) were offered as T. venustus (brown-spotted pit viper). Since both gender were available and since they reminded me so very much of my old "kanburiensis" I bought a couple of pair and proceeded to try to learn the differences between T. kanburiensis and T. venustus.

It seemed that the most visible differences were the number of scale rows at mid-body: 21 for former and 19 for the latter. Venustus had the first 3 supralabials enlarged while the Kanburian did not. I checked and the new pit vipers all had 21 scale rows and enlarged labial scales. They were T. venustus.

Then I pulled a photo of that old 1970s example and although I wasn't positive on the scale row count it did have enlarged labials. I don't think that I have seen T. kanburiensis yet.

A male brown-spotted bamboo viper. A female brown-spotted bamboo viper.

Author, photographer, and columnist Richard Bartlett is one of the most prolific writers on herpetological subjects in the 20th century. With hundreds of books and articles to their credit, Richard and his wife Pat have spent over four decades documenting reptiles both in the field and in captivity. For a list of their current titles, please visit their page in our bookstore.