The World's Smallest Turtle Lives in Puerto Vallarta—It Needs Your Help

Hidden among ponds and freshwater lagoons, Puerto Vallarta is home to one of Mexico's best-kept secrets of biodiversity: the Vallarta mud turtle, the smallest in the world. However, time is running out for its preservation.

Picture yourself meandering through the tourist district of Jalisco’s premiere beach destination, where you'll find charming beachfront hotels, renowned restaurants, and the gentle lapping of the Pacific waves. Suddenly, you come to the realization that just a few meters away, one of Mexico's rarest and most delicate creatures is persevering.

That is exactly what happens with the “Casquito de Vallarta turtle” or Vallarta mud turtle (scientific name: Kinosternon vogti), a species so elusive that the scientific world only learned of its existence a few years ago.

A 100% Vallarta Turtle

The world's smallest turtle, the Vallarta mud turtle, barely reaches four inches in length.  The animal's Spanish nickname “Casquito” comes from its helmet-shaped shell, and it has an unmistakable feature: males have a yellow spot on their nose, while females have a brown one.

In 2018, a team of experts from the University of Guadalajara (UdeG), the Juárez Autonomous University of Tabasco (UJAT), the University of Guanajuato (UG), and UNAM made a discovery: a new species.

There were documented sightings as early as the early 2000s, but at that time, it was mistaken for other species. After a thorough analysis, it was concluded that “Casquito” mud turtle was an unclassified species.

A tardy realization for a species that, unbeknownst to us, was already losing the race against time.

Endangered from Day One

The story of the Vallarta mud turtle is particularly dramatic because it was classified as an endangered species almost immediately after it was discovered.

After the completion of the necessary technical work, the registration of the turtle as a "new species" with the Mexican Ministry of the Environment and Natural Resources (Semarnat) occurred in late 2019.  The turtle was classified in the highest risk category due to the low number of turtles found in Puerto Vallarta and the Banderas Bay region.

Its current situation is even more critical.  The Vallarta mud turtle is a micro-endemic species.  According to expert estimates, only about 460 of these turtles remain in the only region on the planet where they live.  This region is made up of the Tomasa and El Coapinole lagoons in the urban area of Puerto Vallarta, and the Ameca River Valley between Jalisco and Nayarit, primarily.

What factors contribute to its vulnerability?  The “Casquito” mud turtle is under threat by several factors, including rapid urbanization, pollution, fires, the presence of invasive alien species, and illegal trafficking.

Of the eight lagoons where it has still been detected, only one is permanent.  The others dry up outside the rainy season forcing the turtles to migrate and face even greater risks.  These risks include being run over, poaching, and habitat destruction.

The “Casquito” mud turtle is in serious danger of extinction.  If people do not work together to protect the last remaining habitats where it lives, it could disappear within the next five years.

Meet the Guardians of Casquito

In the face of this dismal situation, a non-profit organization has been working tirelessly on the front lines, racing against the clock for years.  Estudiantes Conservando la Naturaleza (Students Protecting the Environment) promotes sea turtle conservation and environmental education, with young interns actively participating in research and protection projects.

The mission of Estudiantes Conservando la Naturaleza is threefold: to monitor the remaining populations of the Vallarta mud turtle, to study its behavior and movements in the wild, to support captive breeding programs, and to raise awareness within the community about the crisis facing the species.

The organization recently made an appeal to the highest international level.  They sent a letter to the Secretary-General of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) in Geneva, Switzerland.  They are requesting urgent intervention in light of the growing crisis facing the “Casquito” mud turtle.

In addition to its endeavors to protect and conserve “Casquito,” this nonprofit organization also allocates resources to the empowerment of individuals.  Estudiantes Conservando la Naturaleza helps young people from rural or low-income areas in Mexico finish their education by offering monthly scholarships and getting them involved in hands-on turtle monitoring activities.  This helps train the next generation of environmental stewards.

What Can You Do to Help Protect Casquito?

The good news is that involvement is possible for anyone, from anywhere in the world.  You can support Estudiantes Conservando la Naturaleza's programs by adopting a “Casquito” mud turtle or sponsoring a student.  If you are a Mexican citizen or business, you can deduct your donations from your taxes.

You can also donate and receive a product that supports their cause.  The sale of T-shirts and other collectible items directly supports the conservation of the Vallarta mud turtle.

For more information and to make a donation, visit the Estudiantes Conservando la Naturaleza official website.

Vallarta, An Ecologically Conscious Destination

Puerto Vallarta's appeal extends beyond its beautiful beaches with soft golden sand and diverse culinary offerings, which include over two thousand restaurants and a vibrant cultural and artistic scene.  Notably, Puerto Vallarta has set a standard for environmental best practices in the tourism industry, making it a model for sustainable development.

The "Casquito" mud turtle, a species found nowhere else on Earth, is currently threatened with extinction.  Remarkably, these creatures persist in the wild just a short distance from major resort developments.

Visiting Vallarta offers an opportunity to actively participate in environmental protection.  You will discover that Jalisco’s premiere beach destination offers far more than stunning beaches.  It involves the profound realization that within the wetlands of Banderas Bay, a turtle no larger than a human finger bears the symbolic weight of its entire species.  This is the reality of the "Casquito" mud turtle.