Jasper Cat Snake

Boiga jaspidea commonly known as the jasper cat snake is a species of rear-fanged colubrid that is uncommon throughout its range. Wikipedia

Jasper Cat Snake (Boiga jaspidea) to any herper in Singapore and it is likely that if he/she has not seen one yet, it is a species that sits very high on their target list. However, as it is rarely seen and is restricted in its distribution, there have only been a small handful of reported sightings in the past decade, with the most recent one recorded in May 2021. Because of its rarity, many classify it under the “unicorn” level, a mythical level reserved for the rarest and most elusive of snake species in Singapore.

There is also very limited literature on this snake species as this elusive snake is uncommon throughout its range. What little is known is that it is arboreal and nocturnal, making it even more difficult to spot and observe. It is rear-fanged and mildly venomous and reportedly feeds on geckos and other small snakes in the wild.

What really makes this snake stand out is how it looks. It has a highly patterned reddish-brown body with scattered black and pink blotches and accentuated by red, orange and yellow highlights, giving it a molten lava-like appearance. Ventrally, it is white except for the front portion of the belly which is bright yellow, and low on its flanks are scattered, irregular white patches. It has a slender body and a large head with possibly the largest eyes of the Boiga genus.

Fun fact: Do you know that despite its rarity, the Jasper Cat Snake is still only the second rarest cat snake species in Singapore? The true crown belongs to the White-spotted Cat Snake (Boiga drapizeii).

[Disclaimer: Credits for this sighting go to Lim Ting, Pearlyn and Peter Chua.]

Text and Photos by Daryl Tan
All photos are copyrighted to Daryl Tan
For more local wildlife photographs and fun facts, do check out his Instagram, https://www.instagram.com/clickingthecritters/