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Petrosaurus thalassinus (COPE, 1863)

IUCN Red List - Petrosaurus thalassinus - Least Concern, LC
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Higher TaxaPhrynosomatidae, Sceloporinae, Iguania, Sauria, Squamata (lizards)
Subspecies 
Common NamesE: Baja California Rock Lizard
G: Blauer Felsenleguan
S: Lagarto de Roca de San Lucas 
SynonymUta thalassina COPE 1863: 104
Uta thalassina —VAN DENBURGH 1895
Petrosaurus thalassinus — BOULENGER 1885: 205
Uta repens VAN DENBURGH 1895: 102
Uta thalassina — COPE 1900
Uta repens — COPE 1900
Petrosaurus thalassinus — SMITH & TAYLOR 1950: 90
Petrosaurus thalassinus — ETHERIDGE 1964
Petrosaurus thalassinus — STEBBINS 1985: 239
Petrosaurus thalassinus — LINER 1994
Petrosaurus thalassinus — LINER 2007
Petrosaurus thalassinus — HEIMES 2022 
DistributionMexico (Cape Region, Islas Espíritu Santo and Partida Sur)

repens: Mexico (Baja California); Type locality: Comondu, Baja California, Mexico;

Type locality: Cape San Lucas, Baja California.  
Reproductionoviparous 
TypesHolotype: USNM 5302
Holotype: CAS 633, W. E. Bryant, April, 1889 [repens] 
DiagnosisDiagnosis (genus): Petrosaurus is distinguished from other sceloporine lizards by the presence of enlarged supraoculars in 2 or 3 rows, 8 or 9 superciliaries, 160-250 rows of smooth concave dorsal scales, more than 100 rows of smooth hexagonal ventral scales, and four sternal ribs [Jennings 1990].


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CommentSubspecies: Petrosaurus thalassinus repens has been elevated to full species status (HR 27: 153 and GRISMER 1999).

Type species: Uta thalassina COPE 1863 is the type species of the genus Petrosaurus BOULENGER 1885. 
EtymologyThe specific name thalassinus is derived from the Greek thalassinos, meaning sea-green, which apparently refers to the "sea-green" dorsal coloration of the holotype (Cope, 1863).

The genus name is derived from Greek and Latin meaning rock dweller. It refers to the fact that these lizards are usually found beneath rocks on the ground. 
References
  • Aguilars S., M. A.; Sites, J. W., Jr.;Murphy, R. W. 1988. Genetic variability and population structure in the lizard genus Petrosaurus (Iguanidae). Journal of Herpetology 22 (2): 135-145 - get paper here
  • Akeret, Beat 2014. Echsen und Sukkulenten im Wintergartenterrarium. Draco 16 (56): 67-79 - get paper here
  • Alibardi, L. 2021. Limb regeneration in lizards under natural and experimental conditions with considerations on the induction of appendages regeneration in amniotes. Annals of Anatomy-Anatomischer Anzeiger, 151844. - 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
  • Burré, G. 2004. Auf der Suche nach dem Blauen Felsenleguan. Iguana Rundschreiben 17 (1): 25-28
  • Carbajal-Márquez, R. A. & Valdez-Villavicencio, J. H. 2012. Petrosaurus thalassinus (San Lucas banded rock lizard) limb regeneration. Herpetological Review 43: 649-650 - get paper here
  • Cardona-Botero, Victoria E.; Rafael A Lara-Resendiz, Patricia Galina-Tessaro 2020. Field and selected body temperatures of the San Lucan rock lizard (Petrosaurus thalassinus) in Baja California, Mexico. Herpetology Notes 13: 485-486 - get paper here
  • Cope, E.D. 1863. Descriptions of new American Squamata in the Museum of the Smtihsonian Institution. Proc. Acad. Nat. Sci. Philadelphia 15 [1863]: 100-106 - get paper here
  • Dickhoff, A. 2003. Petrosaurus thalassinus (COPE 1863) - der Blaue Felsenleguan. Reptilia (Münster) 8 (41): 72-79 - get paper here
  • Foster, C D; Sharp, S; Greene, S & Tietgen, M; 2019. Husbandry and breeding of the Baja Blue Rock Lilzard (Petrosaurus thalassinus) at the Arizona Center for Nature Conservation's Phoenix Zoo. Herpetological Review 50 (1): 79-83 - get paper here
  • Heimes, P. 2022. LIZARDS OF MEXICO - Part 1 Iguanian lizards. Edition Chimaira, Frankfurt Am Main, 448 pp. - get paper here
  • Hernandez-Gallegos, Oswaldo; Casas-Andreu, Gustavo; Rodriguez-Romero, Felipe; Mendez, Fausto R. 2004. Petrosaurus repens (Central Baja California banded Rock Lizard). Scale Variation. Herpetological Review 35 (4):394-395 - get paper here
  • Jennings M R 1990. Petrosaurus Boulenger. Rock lizards. Catalogue of American Amphibians and Reptiles 494: 1-2 - get paper here
  • Jennings, M.R. 1990. Petrosaurus thalassinus. Catalogue of American Amphibians and Reptiles ( 496: 1-3 - get paper here
  • Jones, L.L. & Lovich, R.E. 2009. Lizards of the American Southwest. A photographic field guide. Rio Nuevo Publishers, Tucson, AZ, 568 pp. [review in Reptilia 86: 84] - get paper here
  • Jungnickel, J. 2004. Notizen zur Fortpflanzung des Felsenleguans Petrosaurus repens (VAN DENBURGH, 1895). Sauria, Berlin 26 (2): 3-7 - get paper here
  • Kober, I. & Geissel, U. 2006. Welcher Typ passt zu mir? Die verschiedenen Lampen in der Terraristik. Terraria 1 (1): 17-21
  • Kracht, M. 2004. Erfahrungen bei der Zucht von Petrosaurus repens. Iguana Rundschreiben 17 (2): 14
  • Leviton, Alan E.; Banta, Benjamin H. 1964. Midwinter reconnaissance of the herpetofauna of the Cape Region of Baja California, Mexico. Proc. Cal. Acad. Sci. 30 (7): 127-156 - get paper here
  • Liner, Ernest A. 2007. A CHECKLIST OF THE AMPHIBIANS AND REPTILES OF MEXICO. Louisiana State University Occasional Papers of the Museum of Natural Science 80: 1-60 - get paper here
  • Mocquard, M.F. 1899. Contribution a la faune herpétologique de la Basse-Californie. Nouv. Arch. Mus. Hist. Natur.Paris, 4th Series, Vol. 1: 297-343 + plates XI-XIII - get paper here
  • Peralta-García A, Valdez-Villavicencio JH, Fucsko LA, Hollingsworth BD, Johnson JD, Mata-Silva V, Rocha A, DeSantis DL, Porras LW, and Wilson LD. 2023. The herpetofauna of the Baja California Peninsula and its adjacent islands, Mexico: composition, distribution, and conservation status. Amphibian & Reptile Conservation 17(1&2): 57–142
  • Schulz, J. 2015. Die Haltung und Nachzucht des Blauen Felsenleguans (Petrosaurus thalassinus) im Terrarium. Reptilia (Münster) 20 (115): 52-64 - get paper here
  • Schulze Niehoff, Peter 2014. Immer an der Wand lang: Der Baja-California-Felsenleguan, Petrosaurus repens, im Terrarium. Terraria-Elaphe 2014 (2): 38-45 - get paper here
  • Stebbins,R.C. 1985. A Field Guide to Western Reptiles and Amphibians, 2nd ed. Houghton Mifflin, Boston
  • Van Denburgh,J. 1895. A review of the herpetology of Lower California. Part I - Reptiles. Proc. Cal. Acad. Sci. (2) 5: 77-163 - get paper here
  • Werning, Heiko 2014. Leguane im „Wilden Westen“. Terraria-Elaphe 2014 (2): 16-25 - get paper here
  • Wirth, Michael W 2013. Alle Jahre wieder – Ökologie der Überwinterung von Amphibien und Reptilien. Draco 14 (55): 6-25 - get paper here
 
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