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Sceloporus internasalis SMITH & BUMZAHEM, 1955

IUCN Red List - Sceloporus internasalis - Least Concern, LC
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Higher TaxaPhrynosomatidae, Sceloporinae, Iguania, Sauria, Squamata (lizards)
Subspecies 
Common NamesS: Espinosa de Hocico con Escamitas
E: Mail-snouted Spiny Lizard 
SynonymSceloporus malachiticus internasalis SMITH & BUMZAHEM 1955 (fide KÖHLER 2000)
Sceloporus internasalis — BELL et al. 2003
Sceloporus internasalis — KÖHLER 2008
Sceloporus internasalis — WIENS et al. 2010
Sceloporus internasalis — HEIMES 2022 
DistributionMexico (S Veracruz, Chiapas, E Oaxaca), W Guatemala

Type Locality: La Gloria, Oaxaca, Mexico.  
Reproductionviviparous 
TypesHolotype: INHS (= UIMNH) 35617, collected 12 March 1953 by Thomas MacDougall 
DiagnosisDiagnosis: A Sceloporus closely related to Sceloporus m. malachiticus, with supraoculars in one row; median frontonasal separated from lateral frontonasals; dorsal scales large; shoulder patches absent or if present separated dorsally by 6 or 7 scale rows; no supraoculars in contact with median head scales; 2 rows of scales between nasals and rostral; 2 rows of scales between nasals and first labial; internasal area broken up into many very small, rounded scales (Smith & Bumzahem 1955). 
CommentSynonymy: this species has been considered as a synonym of S. salvini by Smith and Perez-Higareda (1992).

Group: S. formosus group (sensu lato, fide PÉREZ-RAMOS & SALDAÑA DE LA RIVA 2008) 
EtymologyThe Latin inter, "between," nasus, "nose," and -alis, "having the quality of," refer to the many small scales in the internasal area. 
References
  • Aguilar-López JL, Luría-Manzano R, Pineda E, Canseco-Márquez L 2021. Selva Zoque, Mexico: an important Mesoamerican tropical region for reptile species diversity and conservation. ZooKeys 1054: 127-153 - get paper here
  • Bell, E.L.; Smith, H.M. & Chiszar, D. 2003. AN ANNOTATED LIST OF THE SPECIES-GROUP NAMES APPLIED TO THE LIZARD GENUS SCELOPORUS. Acta Zoologica Mexicana (n.s.) 90: 103-174 - get paper here
  • Casas-Andreu, G., F.R. Méndez-De la Cruz and X. Aguilar-Miguel. 2004. Anfibios y Reptiles; pp. 375–390, in A.J.M. García-Mendoza, J. Ordoñez and M. Briones-Salas (ed.). Biodiversidad de Oaxaca. Instituto de Biología, UNAM-Fondo Oaxaqueño para la Conservación de la Naturaleza-World Wildlife Fund, México, D. F.
  • García-Padilla, E., Mata-Silva, V., Villalobos-Juárez, I., López-Esquivel, E. A., Lavariega, M. C., Rocha, A., DeSantis, D. L., Melgar-Martínez, A. I., Johnson, J. D., Fucsko, L. A., Lazcano, D., & Wilson, L. D. 2022. Anfibios y reptiles de la región de los Chimalapas, Istmo de Tehuantepec, Oaxaca, México:: composición, categorización distribucional, estado de conservación y significado para la biodiversidad. Biología Y Sociedad, 5(10), 37–76 - get paper here
  • Günther, A. C. L. G. 1885. Reptilia and Batrachia. Biologia Centrali-Américana. Taylor, & Francis, London, 326 pp. [published in parts from 1885-1902; reprint by the SSAR 1987] - get paper here
  • Heimes, P. 2022. LIZARDS OF MEXICO - Part 1 Iguanian lizards. Edition Chimaira, Frankfurt Am Main, 448 pp.
  • Hernández-Vázquez, M E; 2019. Sceloporus internasalis (Mail-snouted Spiny Lizard) Antipredator behavior. Herpetological Review 50 (1): 144-145 - get paper here
  • Johnson, Jerry D.; Vicente Mata-Silva, Elí García Padilla, and Larry David Wilson 2015. The Herpetofauna of Chiapas, Mexico: composition, distribution, and conservation. Mesoamerican Herpetology 2 (3): 272–329. - get paper here
  • Köhler, G. 2000. Reptilien und Amphibien Mittelamerikas, Bd 1: Krokodile, Schildkröten, Echsen. Herpeton Verlag, Offenbach, 158 pp.
  • Köhler, G. 2008. Reptiles of Central America. 2nd Ed. Herpeton-Verlag, 400 pp.
  • Köhler, G. & Heimes, P. 2002. Stachelleguane. Herpeton-Verlag (Offenbach), 174 pp.
  • Mata-Silva, Vicente, Jerry D. Johnson, Larry David Wilson and Elí García-Padilla. 2015. The herpetofauna of Oaxaca, Mexico: composition, physiographic distribution, and conservation status. Mesoamerican Herpetology 2 (1): 6–62 - get paper here
  • Pérez-Ramos, E. & Saldaña de La Riva, L. 2008. Morphological revision of lizards of the formosus group, genus Sceloporus (Squamata: Sauria) of southern Mexico, with description of a new species. Bull. Maryland Herp. Soc. 44 (3): 77-98 - get paper here
  • Smith, H. M. 1939. The Mexican and Central American lizards of the genus Sceloporus. Field Mus. Nat. Hist., Zool. Ser. 26: 1-397. - get paper here
  • Smith, H. M. & G. Pérez-Higareda 1992. Nomenclatural fixation of Sceloporus formosus (Reptilia: Sauria) and the status of S. salvini. Bull. Maryland Herp. Soc. 28: 31-43. - get paper here
  • Smith, H. M., & BUMZAHEM, C. B. 1955. The identity of the trans-isthmic populations of the malachite tree-lizard (Sceloporus malachiticus Cope). Herpetologica 11: 118-20. - get paper here
  • Stuart,L.C. 1971. Comments on the malachite Sceloporus (Reptilia: Sauria: Iguanidae) of Southern México and Guatemala. Herpetologica 27: 235-39. - get paper here
  • Torres-Hernández, LA, Ramírez-Bautista A, Cruz-Elizalde R, Hernández-Salinas U, Berriozabal-Islas C, DeSantis DL, Johnson JD, Rocha A, García-Padilla E, Mata-Silva V, Fucsko LA, and Wilson LD. 2021. The herpetofauna of Veracruz, Mexico: composition, distribution, and conservation status. Amphibian & Reptile Conservation 15(2) [General Section]: 72–155 - get paper here
 
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