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Stenocercus guentheri (BOULENGER, 1885)

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Higher TaxaTropiduridae, Iguania, Sauria, Squamata (lizards)
Common NamesE: Günther's Whorltail Iguana
S: Guagsa de Günther 
SynonymLiocephalus guentheri BOULENGER 1885: 169
Ophryoessoides guentheri — ETHERIDGE 1966: 88
Ophryoessoides guentheri — PETERS et al. 1970: 214
Stenocercus guentheri — FRITTS 1974
Stenocercus guentheri — TORRES-CARVAJAL 2000: 17
Stenocercus guentheri — TORRES-CARVAJAL 2007 
DistributionColombia (Cauca, Nariño), Ecuador (Chimborazo, Cotopaxi, Imbabura, Pichincha, Tungurahua), elevation 2135-3890 m.

Type locality: Guayaquil, Sarayacu, Western Ecuador, and Colombia [Provincia Guayas and Pastaza]. Restricted to San Antonio de Pichincha, 2500 m, Provincia Pichincha, by FRITTS 1974.  
TypesSyntypes: BMNH,,,, 71.2.7-10, (nine specimens), (20 specimens total) 
DiagnosisDiagnosis: TORRES-CARVAJAL 2007. 
CommentStenocercus guentheri might be a species complex because of the considerable geographic variation.

Belongs to the clade Boreomegalepis (fide TORRES-CARVAJAL 2006). 
EtymologyNamed after Albert Günther (1830-1914), German-born zoologist at the British Museum. 
  • Belén-Andrango, María; Carla Sette, Omar Torres-Carvajal 2016. Short-term predicted extinction of Andean populations of the lizard Stenocercus guentheri (Iguanidae: Tropidurinae). Journal of Thermal Biology, DOI: 10.1016/j.jtherbio.2016.09.012
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Boulenger, G.A. 1885. Catalogue of the lizards in the British Museum (Natural History). Vol. 2, Second edition. London, xiii+497 pp. - get paper here
  • CADENA-ORTIZ, HÉCTOR & MARÍA CRISTINA RÍOS. 2022. STENOCERCUS GUENTHERI (Günther’s Whorltail Iguana). PREDATION. Herpetological Review 53(1): 139.
  • Carranza, S.; E. N. Arnold & F. Amat 2004. DNA phylogeny of Lacerta (Iberolacerta) and other lacertine lizards (Reptilia: Lacertidae): did competition cause long-term mountain restriction? Systematics and Biodiversity 2 (1): 57-77 - get paper here
  • Carrera, C. et al. 2009. Guía de Campo de los Pequeños Vertebrados del Distrito Metropolitano de Quito (DMQ). Publicación Miscelánea N° 5. Serie de Publicaciones del Museo Ecuatoriano de Ciencias Naturales (MECN) – Fondo Ambiental del MDMQ. 1-89 pp. Imprenta Nuevo Arte. Quito-Ecuador.
  • Castro F; Ayala S C 1982. Nueva especie de (Sauria: Iguanidae) lagarto collarejo de la zona sur Andina de Colombia. Caldasia 13 (No. 63): 473-478 - get paper here
  • Castro-Herrera, F. & Granadas-Diaz, H. 1993. DISTRIBUCION DE STENOCERCUS GUENTHERI(SAURIA: IGUANIDAE) EN EL SUR DE LOS ANDES DE COLOMBIA. Caldasia 17: 295-300 - get paper here
  • Etheridge, Richard E. 1966. The systematic relationships of West Indian and South American lizards referred to the iguanid genus Leiocephalus. Copeia 1966 (1): 79-91 - get paper here
  • Fritts, Thomas H. 1974. A multivariate evolutionary analysis of the Andean Iguanid lizards of the genus Stenocercus. San Diego Society of Natural History Memoir 7: 1-89 - get paper here
  • Guerra-Correa ES, Merino-Viteri A, Andrango MB, Torres-Carvajal O 2020. Thermal biology of two tropical lizards from the Ecuadorian Andes and their vulnerability to climate change. PLoS ONE 15(1): e0228043 - get paper here
  • Ramírez-Jaramillo, Salomón 2018. Primer reporte de cifoescoliosis en Stenocercus guentheri (Iguania: Tropiduridae), Andes Norte de Ecuador. Cuad. herpetol. 32 (1): - get paper here
  • Torres-Carvajal O, Pazmiño-Otamendi G, Salazar-Valenzuela D. 2019. Reptiles of Ecuador: a resource-rich portal, with a dynamic checklist and photographic guides. Amphibian & Reptile Conservation 13 (1): [General Section]: 209–229 (e178) - get paper here
  • Torres-Carvajal, O. 2002. Tooth Number Does Not Vary Ontogenetically in the Andean Lizard Stenocercus guentheri (Squamata: Tropiduridae) Journal of Herpetology 36 (4): 707-711. - get paper here
  • Torres-Carvajal, Omar 2000. Ecuadorian lizards of the genus Stenocercus (Squamata: Tropiduridae). Scientific papers of the Natural History Museum, University of Kansas, (15): 1-38 - get paper here
  • Torres-Carvajal, Omar and Paola Mafla-Endara 2013. A New Cryptic Species of Stenocercus (Squamata: Iguanidae) from the Andes of Ecuador. Journal of Herpetology Mar 2013, Vol. 47, No. 1: 184-190. - get paper here
  • Torres-Carvajal, Omar; James A. Schulte II and John E. Cadle 2006. Phylogenetic relationships of South American lizards of the genus Stenocercus (Squamata: Iguania): A new approach using a general mixture model for gene sequence data. Molecular Phylogenetics and Evolution 39 (1): 171-185 - get paper here
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