Sceloporus lundelli
Sceloporus lundelli, also known commonly as Lundell's spiny lizard and la espinosa de Lundell in Mexican Spanish, is a species of lizard in the family Phrynosomatidae. The species is native to the Yucatán Peninsula in Mexico, Belize, and Guatemala. There are two recognized subspecies. Geographic range
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. Habitat
The preferred natural habitat of S. lundelli is forest at altitudes from sea level to , but it has also been found in urban areas. Description
Adults of S. lundelli may attain a snout-to-vent length (SVL) of . Behavior
S. lundelli is diurnal and arboreal. Reproduction
The mode of reproduction of S. lundelli is uncertain: it has been reported to be oviparous, but may be viviparous. Subspecies
Two subspecies are recognized as being valid, including the nominotypical subspecies. Sceloporus lundelli gaigeae 
Sceloporus lundelli lundelli

Etymologies
The specific name, lundelli, is in honor of American botanist Cyrus Longworth Lundell. The subspecific name, gaigeae, is in honor of American herpetologist Helen Beulah Thompson Gaige. References

Further reading
Campbell JA (1998). Amphibians and Reptiles of Northern Guatemala, the Yucatán, and Belize. Norman: University of Oklahoma Press. xiii + 380 pp. . González-Sánchez, Víctor Hugo; Johnson, Jerry D.; García-Padilla, Elí; Mata-Silva, Vicente; DeSantis, Dominic L.; Wilson, Larry David (2017). "The Herpetofauna of the Mexican Yucatan Peninsula: composition, distribution, and conservation status". Mesoamerican Herpetology 4 (2): 264–380. Köhler G (2000). Reptilien und Amphibien Mittelamerikas. Band 1: Krokodile, Schildkröten, Echsen. Offenbach, Germany: Herpeton Verlag. 158 pp. . (Sceloporus lundelli, p. 85). (in German). Smith HM (1939). "The Mexican and Central American Lizards of the Genus Sceloporus ". Field Museum of Natural History Zoological Series 26: 1–397 + Plates 1-31. (Sceloporus lundelli lundelli, new species and subspecies, pp. 66–71 + Plate 4; Sceloporus lundelli gaigeae, new subspecies, pp. 71–74 + Plate 5). Sceloporus
Reptiles of Mexico
Reptiles of Belize
Reptiles described in 1939
Taxa named by Hobart Muir Smith