The reptile diversity of the reserve is good compared to many forest fragments nearby and at least 42 species of reptile have been recorded.
The overall count for the Atlantic forest is 311 and about 30% of these are endemic.
The species that I encounter most frequently is the Broad-snouted caiman and they are easy to find basking on the islands of the old wetland around mid-day.
I have also found several Amazonian or Cocha whiptails which is a widespread species occurring in almost all semi-forested habitats but they prefer dryer and rockier areas.
Serpents are very difficult to find as they are anywhere, but I have identified at least 5 species so far.
Tiger ratsnake (Spilotes pullatus) are widespread across Southern America and are usually arboreal, killing their prey through constriction.
Atlantic coral snake (Micrurus corallines) is restricted to the Atlantic rainforest biome and is quite rare to see due to its habits for staying in thick cover. This species has very potent venom but bites on people are very rare, compared to other venomous snakes in the region.
Five-lined burrowing snake is a species of dense forest that spends much of its time below the leaf litter hunting for prey
long-tailed machete savane or (Chironius multiventris) is a colubrid that grows very long like this specimen I found on the 4x4 trail.
Green forest racer is the species I have seen most frequently in the reserve, they vary in colour but typically are greener when they are more mature.
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