Boiga cynodon
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~20% in a week ~50%
Boiga cynodon, commonly known as the dog-toothed cat snake, is a nocturnal species of rear-fanged colubrid snake endemic to Asia. It is a large snake, reaching more than 2 m (6+1⁄2 ft) in total length. The front teeth of the upper jaw and the lower jaw are strongly enlarged. The anterior palatine teeth are significantly enlarged, while the posterior chin shields are larger than the anterior ones.
The dorsal scales are smooth and arranged in 23 or 33 rows at midbody, with the scales in the vertebral row being notably enlarged. The species has 248 to 290 ventral scales and 114 to 165 subcaudal scales. Boiga cynodon can be distinguished from other similar species by several key characteristics. It is slender and laterally compressed. Notably, it has a post-ocular stripe that is distinctly wavy or irregular, unlike the more even or nearly even upper and lower lines found in other similar species. Although coloration can vary, B. cynodon typically features a yellowish or pale reddish-brown dorsal coloration with dark brown or black transverse spots or crossbars. It also has a dark postocular streak of irregular thickness on each side of the head, and its belly is yellowish... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Danum Valley Conservation Area | 🇲🇾 Malaysia | |
| 2 | Sepilok | 🇲🇾 Malaysia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Singapore | 🇸🇬 Singapore |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Moscow Zoo | 🇷🇺 Russia | |
| 2 | Pairi Daiza | 🇧🇪 Belgium | |
| 3 | National Zoo of Malaysia | 🇲🇾 Malaysia | |
| 4 | Siam Serpentarium | 🇹🇭 Thailand | |
| 5 | Snake Farm of Queen Saovabha Memorial Institute | 🇹🇭 Thailand |
With luck
About 10% of wildlife watchers report a Dog-toothed Cat Snake sighting in Sepilok on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 32nd most-seen of the 34 reptiles we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
January and February
In those months about 20% of wildlife watchers report a Dog-toothed Cat Snake in Sepilok on a given day, against under 5% in April, June–July and September–December, the lowest months.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Dog-toothed Cat Snake sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 parks where we can rate Dog-toothed Cat Snake sightings, Sepilok ranks 2nd at about 10%. The best odds are in Danum Valley Conservation Area (Malaysia, about 30%).
GBIF citizen-science records
It is estimated from how often the Dog-toothed Cat Snake is recorded against all the reptiles logged in Sepilok (5 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
