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Microlophus peruvianus (LESSON, 1830)

IUCN Red List - Microlophus peruvianus - Least Concern, LC

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Higher TaxaTropiduridae, Iguania, Sauria, Squamata (lizards) 
SubspeciesMicrolophus peruvianus salinicola (MERTENS 1956)
Microlophus peruvianus peruvianus (LESSON 1830) 
Common NamesE: Peru Pacific Iguana
G: Peru-Wüstenkielschwanzleguan 
SynonymStellio peruvianus LESSON 1830: 40
Lophyrus araucanus LESSON 1830: 39 (fide ORTIZ-ZAPATA 1980)
Tropidurus microlophus WIEGMANN 1834
Microlophus Lessoni DUMÉRIL & BIBRON 1837: 336
Steirolepis microlophus — FITZINGER 1843
Steirolepis peruviana — FITZINGER 1843
Steirolepis xanthostigma TSCHUDI 1845
Microlophus inguinalis — COPE 1876: 36
Microlophus peruvianus — COPE 1876: 36
Tropidurus peruvianus — BOULENGER 1885: 174
Tropidurus peruvianus — PETERS et al. 1970: 267
Microlophus peruvianus — FROST 1992
Microlophus peruvianus — SCHLÜTER 2002

Microlophus peruvianus salinicola (MERTENS 1956)
Tropidurus peruvianus salinicola MERTENS 1956: 108 
DistributionSW Ecuador, W Peru

Type locality: Callao and Payta, Peru.  
Reproductionoviparous. The clutch sizes of northern sample are 3 to 5 (4.1) eggs, salinicola. 2 to 3 (2.3) eggs, and peruvianus, 2 to 5 (3.5) eggs. 
TypesHolotype: MNHN = MHNP 6873
Holotype: SMF 50217, male [salinicola] 
DiagnosisDiagnosis (genus): Frost 1992: 48.

Diagnosis. Tropidurus peruvianus is distinguished from members of the occipitalis group by having small, granular dorsolateral scales, rather than large, keeled and imbricate dorsolateral scales. Within the peruvianus group, peruvianus is distinguished from Ihoracicus by the presence of one row of scales between the nostril scale and the first labial and bold black chevrons on the throat in males, rather than two or more rows of scales between the nasal scale and the first labial and no distinct black chevrons on the throat of males; from Iheresiae by the presence of an enlarged vertebral row of scales and the absence of an orange-red eye ring; from tigris by having distinct black throat chevrons in males and small scales on the upper arm without free projecting spines, rather than distinct black, transverse rows of spots on the throat of males and large scales on the upper arm with free projecting spines at the posterior tip. 
CommentSubspecies: Peters et al. (1970) listed 9 subspecies, many of which have been elevated to full species status since then. The status of salinicola is unclear to us.

Habitat: rock cliffs, bluffs, outcrops, mud cliffs, salt crust beaches, sand dunes, and sand flats, with or without vegetation.

Type species: Microlophus Lessoni DUMÉRIL & BIBRON 1837 is the type species of the genus Microlophus DUMÉRIL & BIBRON 1837. 
EtymologyNamed after its distribution in Peru. 
References
  • 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
  • Catenazzi, Allessandro. 2006. Microlophus peruvianus Saurophagy. Herpetological Review 37 (1): 90 - 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
  • Cope, E.D. 1878. Synopsis of the cold blooded Vertebrata, procured by Prof. James Orton, during his exploration of Peru in 1876-77. Proc. Amer. Philos. Soc. 17: 33-49 [1877] - get paper here
  • Dixon, J.R. & WRIGHT,J.W. 1975. A review of the lizards of the iguanid genus Tropidurus in Peru. Contrib. Sci. Nat. Hist. Mus. Los Angeles Cty. 271: 1-39 - get paper here
  • Duméril, A. M. C. and G. Bibron. 1837. Erpétologie Générale ou Histoire Naturelle Complete des Reptiles. Vol. 4. Libr. Encyclopédique Roret, Paris, 570 pp. - get paper here
  • Frost, Darrel R. 1992. Phylogenetic analysis and taxonomy of the Tropidurus group of lizards (Iguania: Tropidurudae). American Museum Novitates (3033): 1-68 - get paper here
  • Goldberg, S.R. & Bursey, C.R. 2009. Helminths from seven species of Microlophus (Squamata: Tropiduridae). Salamandra 45 (2): 125-128 - get paper here
  • HARVEY, Michael B. & RONALD L. GUTBERLET JR 2000. A phylogenetic analysis of the tropidurine lizards (Squamata: Tropiduridae), including new characters of squamation and epidermal microstructure. Zoological Journal of the Linnean Society 128: 189–233.
  • Lehr, E. 2002. Amphibien und Reptilien in Peru. Natur und Tier-Verlag (Münster), 208 pp. - get paper here
  • Lehr, E.; Köhler, G. & Streit, B. 2002. Die Herpetofauna von Mittelperu entlang eines Transektes von der pazifischen Küste bis in die Hochanden (Amphibia et Reptilia). Faun. Abh. Mus. Tierk. Dresden 22 (2): 361-392
  • Lesson, R.P. 1830. Description de quelques reptiles nouveaux ou peu connus. In: M.L.I. Duperrey, Voyage Autour du Monde Execute par Ordre du Roi, sur la Corvette de La Majeste, La Coquille, Pendant les Annees 1822, 1823, 1824 et 1825. 2. Zoologie Tome 2, Partie 1. Arthur Bertrand, Paris: 1-65 - get paper here
  • Mertens, R. 1956. Studien über die Herpetofauna Perus I. Zur Kenntniss der Iguaniden-Gattung Tropidurus in Peru. Senckenbergiana biologica 37: 101-136
  • Ortiz,J.C. 1980. Le statut taxinomique de Lophyrus araucanus LESSON 1831 (Sauria, Iguanidae). Bull. Mus. natl. Hist. nat. Paris (4) 2 (2): 599-601
  • Peters, James A.; Donoso-Barros, Roberto & Orejas-Miranda, Braulio 1970. Catalogue of the Neotropical Squamata: Part I Snakes. Part II Lizards and Amphisbaenians. Bull. US Natl. Mus. 297: 347 pp. - get paper here
  • Schlüter, U. 2000. Wüstenkielschwanzleguane aus Peru. DRACO Nr. 4, 1(4): 44-49
  • Schlüter, U. 2002. Das Leguanportrait: Microlophus peruvianus (LESSON 1826). Iguana Rundschreiben 15 (1): 5-7
  • Toyama, Ken Sebastian 2016. Evidence of adaptive evolution in the cranial morphology of Tropidurid lizards from coastal Peru Herpetology Notes 9: 47-53 - get paper here
  • Tschudi,J. J. von 1845. Reptilium conspectum quae in republica Peruana reperiuntur er pleraque observata vel collecta sunt in itenere. Archiv für Naturgeschichte 11 (1): 150-170 [reprint 1968, SSAR; sometimes cited as being published in 1846]. - get paper here
 
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