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Dicrodon guttulatum DUMÉRIL & BIBRON, 1839

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Higher TaxaTeiidae, Teiinae, Gymnophthalmoidea, Sauria, Squamata (lizards)
Subspecies 
Common NamesE: Peru Desert Tegu 
SynonymDicrodon guttulatum DUMÉRIL & BIBRON 1839: 138
Cnemidophorus lentiginosus GARMAN 1892: 92
Ameiva leucostigma BOULENGER 1899: 517
Dicrodon barbouri NOBLE 1924: 108
Dicrodon guttulatum — PETERS & DONOSO-BARROS 1970: 107
Dicrodon guttulatum — CHAVEZ & VENEGAS 2007
Dicrodon guttulatum — HARVEY et al. 2012 
DistributionEcuador, N Peru (dry coastal areas)

Type locality: Peru  
Reproductionoviparous 
TypesHolotype: MNHN-RA 1116
Holotype: MCZ 17972, paratypes in ZMB and NMW [barbouri] 
DiagnosisDiagnosis (genus): Dicrodon and Teius are the only teiids with transversely oriented, bicuspid teeth. Unlike Teius (characters in parentheses), Dicrodon lacks an apical basin on its hemipenis (basin present) and has fused frontoparietals (paired), a fifth toe with four phalanges (fifth toe vestigial, reduced to small nub), and sharply keeled distal digital lamellae under the fourth toe (weakly keeled or smooth). In addition, the first supraocular usually broadly contacts the second supraocular (separated by complete row of granular scales) in Dicrodon, although this character shows some regional variation (Fugler 1973). 
CommentSynonymy that of PETERS & DONOSO-BARROS 1970.

Type species: Dicrodon guttulatum DUMÉRIL & BIBRON 1839 is the type species of the genus Dicrodon DUMÉRIL & BIBRON 1839. 
EtymologyProbably named after Latin gutta = drop, for the drop-shaped head; alternatively for the spots on the back.

Dicrodon is a masculine noun in the nominative singular derived from the Greek prefix di and noun odontos. The name refers to the bifid posterior teeth characteristic of this genus.

Dicrodon barbouri was named after Thomas Barbour, MCZ. 
References
  • Acosta-Vásconez, Nicole; Martín Carrera, Emilia Peñaherrera, Diego F. Cisneros-Heredia 2018. Predation of the teiid lizard Dicrodon guttulatum Duméril and Bibron, 1839 by the pitviper Porthidium arcosae Schätti and Kramer, 1993. Herpetology Notes 11: 391-393 - get paper here
  • Bauer, A.M. and R. Günther 1994. An annotated type catalogue of the teiid and microteiid lizards in the Zoological Museum, Berlin (Reptilia: Squamata: Teiidae and Gymnophthalmidae). Mitt. Zool. Mus. Berlin 70:267-280 - get paper here
  • Boulenger, G. A. 1899. Description of a new lizard of the genus Ameiva from Ecuador. Proc. Zool. Soc. London 1899: 517-518 - get paper here
  • Brizuela, Santiago; Ralf Kosma 2017. Comments on the Dentition of the Teiid Dicrodon Duméril and Bibron, 1839. South American Journal of Herpetology Dec 2017, Vol. 12, No. 3: 200-204. - get paper here
  • Cei, J.M. 2003. SPECIFIC SUPRAOCULAR SCUTELLATION PATTERNS AS SIGNIFICANT DIAGNOSTIC CHARACTERS: A TAXONOMIC INTER- AND INTRAGENERIC "FINGER-PRINT" IN LACERTILIA. Facena 19: 129-135 - get paper here
  • Chávez, G. & Venegas, P. 2007. Looking for Macanches in the dry forest of Peru. Reptilia (GB) (51): 54-59 - get paper here
  • Duméril, A. M. C. and G. Bibron. 1839. Erpétologie Générale on Histoire Naturelle Complète des Reptiles. Vol. 5. Roret/Fain et Thunot, Paris, 871 pp. - get paper here
  • GARCÍA-BRAVO, ANTONIO; BETTY K. GUZMAN, JANI E. MENDOZA, CRISTÓBAL TORRES GUZMÁN, MANUEL OLIVA, ELGAR BARBOZA, JHON QUIÑONES RÁMIREZ, J. LUIS ZABARBURU-VENEROS & PABLO J. VENEGAS. 2022. Updating the distribution of Dicrodon guttulatum Duméril & Bibron, 1839 (Reptilia, Teiidae) with a disjunct population in the eastern slope of the Peruvian Andes Check List 18(3): 483–491. - get paper here
  • Garman, S. 1892. On reptiles collected by Dr. Geo. Baur. near Guayaquil, Ecuador. Bull. Essex Inst. 24: 88-95 - get paper here
  • Gemel, R.; G. Gassner & S. Schweiger 2019. Katalog der Typen der Herpetologischen Sammlung des Naturhistorischen Museums Wien – 2018. Ann. Naturhist. Mus. Wien, B 121: 33–248
  • Goldberg, Stephen R. 2008. Notes on Reproduction of Dicrodon guttulatum, D. heterolepis and D. holmbergi (Squamata: Teiidae) from Peru. Bull. Maryland Herp. Soc. 44 (3): 103 - get paper here
  • HARVEY, MICHAEL B.; GABRIEL N. UGUETO & RONALD L. GUTBERLET, Jr. 2012. Review of Teiid Morphology with a Revised Taxonomy and Phylogeny of the Teiidae (Lepidosauria: Squamata). Zootaxa 3459: 1–156 - get paper here
  • Leeuwen, Jeroen Peter van; Alessandro Catenazzi, and Milena Holmgren 2011. Spatial, Ontogenetic, and Sexual Effects on the Diet of a Teiid Lizard in Arid South America. Journal of Herpetology 45 (4): 472-477. - get paper here
  • Noble, G. K. 1924. New lizards from northwestern Peru. Occasional Papers of the Boston Society of Natural History 5: 107—113 - get paper here
  • Salas, Antonio W. 1995. HERPETOFAUNA PERUANA: UNA VISION PANORAMICA SOBRE INVESTIGACION, CONSERVACION Y MANEJO. Biotempo 2: 125 - 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
 
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