The 5 Common Snakes in Puerto Rico Tourists Should Know

Puerto Rico is home to a broad collection of snakes, including the brilliant, colorful coral snake and the gigantic boa constrictor, as well as the striking yet reclusive and extremely deadly fer-de-lance. 

Each species has its distinct qualities and behaviors, yet they all have a complex history that is intertwined with the native cultures and ecosystem of the island. The island’s indigenous people have adored and venerated these creatures for ages, viewing them as emblems of fertility, strength, and knowledge. 

Snakes are an essential part of the ecology in the region, regulating rodent populations and serving as important markers of the natural environment’s health.

Snakes in Puerto Rico

Outdoor lovers, eco-tourists, and herpetologists alike will find Puerto Rico an ideal destination for observing these reptiles in the wild. Even if you’re not looking for them, you may get a surprise encounter with some of these magnificent creatures.

The most popular snakes in Puerto Rico:

Mona Boa

Mona Boa is an incredible snake species endemic to the Caribbean Island of Puerto Rico. This species is remarkable for its size, as it can grow up to 8 feet in length. Its body is a deep, iridescent black with a distinctive pattern of yellow, white, and black stripes. 

Mona Boa is not aggressive but rather quite docile and can often be found basking in the sun, soaking up the rays. They are a great addition to any reptile enthusiast’s collection, and with proper care and attention, they can live up to 15 years in captivity.

Puerto Rican Racer

These unique creatures are a sight to behold, with their striking black and yellow patterns and slender, athletic bodies. Found in the Caribbean and Central American regions, these fast-moving creatures have captivated the imaginations of scientists and animal lovers alike. 

Despite their size and speed, Puerto Rican Racer snakes are non-venomous and pose no threat to humans. They provide ecological benefits, as they help to keep the insect population in check. As the name implies, these snakes are swift and agile and can often be seen on the hunt for food or darting away from potential predators.

Coastal Blindsnake

The Caribbean Island of Puerto Rico is home to an incredible variety of snakes, including the enigmatic Coastal Blindsnake. This curious creature is a small, non-venomous snake, measuring up to 6.5 inches long, with a slender body and smooth, glossy black to dark brown skin. It is distinctively adapted to life in the coastal habitats of Puerto Rico, where it can be found near the sea in areas such as rocky shores, mangrove forests, and beaches.

The Coastal Blindsnake is a marvel of evolutionary adaptations, possessing only rudimentary eyes and no true pupils. This unique adaptation allows it to navigate the sandy beaches and rocky shores of Puerto Rico’s coast with remarkable agility, hunting for its preferred diet of small invertebrates and insects. Though the Coastal Blindsnake lacks sight, its other senses are incredibly attuned, allowing it to find food even in the darkest environments.

Richard’s Blind Snake

The lush island of Puerto Rico is home to many exotic creatures, but one of the most curious is Richard’s Blind Snake. This small, burrowing species are found in the dry forests of the Caribbean nation and are the only known species of its kind. 

With an average length of about four to six inches, these snakes have large heads and small eyes, allowing them to navigate their underground homes easily. Despite their small size, Richard’s Blind Snakes are incredibly strong, able to lift twice their weight and dig through the earth with their powerful tails.

Richard’s Blind Snake is a unique species of snake native to Puerto Rico. Although they cannot see, these snakes have a remarkable sense of smell, which they use to locate and capture their prey. Insects are their primary diet, although they may feed on small amphibians and lizards. 

These snakes’ bodies are cylindrical and typically reach lengths of about 20 cm. They are generally dark brown with a light gray underside. Furthermore, they possess a large head and small eyes covered by a transparent skin plate.

Flat Head Worm Snake

The Flat Head Worm Snake, also known as the Puerto Rican Worm Snake, is an incredibly fascinating creature. Found only in the Caribbean Island of Puerto Rico, this snake is known for its small size and unique flattened head. It is a burrowing species, and it feeds mainly on small invertebrates like worms and insects that it finds in the ground. It may be small, but it’s mighty, adapting to its environment with remarkable success.

This tiny snake is an integral part of the Puerto Rican environment and is beloved by many inhabitants. It’s rare to find one on the surface; this species prefers to remain hidden in the ground or the crevices of rocks and trees.

Safety Precautions When You See a Snake in Puerto Rico

You may come across some slithering, scaly creatures when you’re out and about in Puerto Rico. Snakes are common in the region and can be a source of awe and fear for many. To stay safe whenever you see a snake in Puerto Rico, take the proper precautions. 

After all, several species in the area could pose a threat to your health. Here is a list of safety tips:

Remain calm. Don’t panic if you spot a snake! Stay still and be prepared to move away if it begins to move towards you. But don’t move quickly, as this could startle it.

Don’t corner the snake. Always give the snake a way to escape if it feels threatened, and don’t attempt to catch it.

Make yourself visible. Try to make yourself more noticeable to the snake. It may help the snake feel more comfortable and less likely to attack. Wave your arms and make noise to alert the snake of your presence.

Make sure you have good footing. If you need to move away from a snake, ensure good footing and solid ground. Avoid stepping on loose rocks or tall grass that could conceal other snakes.

Stay away from snake habitats. Avoid entering areas where snakes are known to congregate, such as wooded areas, long grass, and loose rocks. If you must enter one of these areas, wear sturdy shoes and protective clothing.

Keep your distance. Most snakes won’t attack unless provoked. However, maintain a ten-foot distance from the snake so you are out of striking range.

Allow the snake to leave first. Once the snake has gone, it’s safe to move. If you find yourself in a situation where there are multiple snakes, wait until they have all left before moving away.

Don’t pick up the snake. Snakes can be unpredictable, so it’s best to leave them alone. Don’t attempt to touch or pick up the snake; you could get hurt! Even dead snakes should be carefully handled because they retain their bite reflex up to an hour after death.

Seek professional help. If you still feel uneasy after spotting a snake, contact an animal control officer or wildlife specialist for assistance. They can assess the situation and help you safely remove snakes from your property.


Snakes play an essential role in their ecosystems and can benefit us if we leave them alone! Adhere to these safety tips, and you can enjoy the beauty of Puerto Rico’s slithering creatures without worrying about your safety.  

Jude Uchella

Jude Uchella is a passionate research writer whose work has been published on many reputable platforms, including MSN, Wealth of Geeks, and more! He prioritizes research, writes comprehensively, and only shares factual and helpful content. He is a reader’s delight!

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