[2] S. lundelli is found in the Mexican states of Campeche, Quintana Roo, Tabasco, and Yucatán, in the Belizean district of Cayo, and in the Guatemalan department of El Petén.

[1][2] The preferred natural habitat of S. lundelli is forest at altitudes from sea level to 300 m (980 ft), but it has also been found in urban areas.

[1] Adults of S. lundelli may attain a snout-to-vent length (SVL) of 8.5–10 cm (3.3–3.9 in).

[2] The specific name, lundelli, is in honor of American botanist Cyrus Longworth Lundell.

[3] The subspecific name, gaigeae, is in honor of American herpetologist Helen Beulah Thompson Gaige.