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Tico Explorers

Nature Field Guide

O’Shaughnessy’s Galliwasp

Spanish name
Lagartija de hojarasca
Scientific name
Mesoamericus bilobatus

What Do Pico & Tati Think?

Pico: “What helps this reptile fit into its habitat?”

Tati: “Let’s look at its shape, colors and surroundings while giving it plenty of space.”

Species overview

About the O’Shaughnessy’s Galliwasp

This galliwasp has a long body, a tapering tail and short but distinct legs. Smooth-looking scales and brown tones can make it resemble a skink at first glance. It is a lizard, not a snake.

Older references use the name Diploglossus bilobatus. Scientific names can change as researchers study relationships, while the living animal and its need for shelter remain the same. This secretive reptile uses humid forest cover. Protect the small spaces under natural debris by leaving logs and leaf litter undisturbed.

Identification

Key Features of the O’Shaughnessy’s Galliwasp

  • Elongated smooth-looking body

  • Four short legs

  • Brown coloration and a long tail

Habitat & range

Humid forests of the Caribbean slope and southwestern Pacific, including a documented population at Tirimbina.

Local observations

Native species recorded in Costa Rica. Sightings depend on suitable habitat and locality.

When to observe

Observe on a suitable guided outing. Activity varies with weather, season and locality; do not disturb a resting or hidden animal.

Conservation & care

Observe with an adult from permitted paths. Do not touch, chase, catch or feed reptiles. Leave bark, logs, stones and leaf litter in place. Keep pets away and allow an open escape route.

Threats & pressures

Protect connected habitat and natural shelters. Avoid collection, unnecessary clearing and deliberate killing. Leave wildlife in place and support responsible observation.

Observation activity

Count the visible limbs in the illustration. Compare its outline with a snake without approaching either animal.

Explore by location

Caribbean · Central Pacific · Northern Plains · South Pacific · Alajuela · Heredia · Limón · Puntarenas · San José

Related discoveries

Sources & further reading

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