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Sceloporus lineatulus DICKERSON, 1919

IUCN Red List - Sceloporus lineatulus - Least Concern, LC

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Higher TaxaPhrynosomatidae, Sceloporinae, Iguania, Sauria, Squamata (lizards)
Common NamesE: Santa Catalina Spiny Lizard
S: Bejori de Isla Santa Catalina 
SynonymSceloporus lineatulus DICKERSON 1919: 467
Sceloporus magister lineatulus — SMITH 1939: 168
Sceloporus magister lineatulus — SMITH & TAYLOR 1950: 115
Sceloporus lineatulus — MURPHY 1983
Sceloporus lineatulus — LINER 1994
Sceloporus lineatulus — BELL et al. 2003
Sceloporus lineatulus — LINER & CASAS-ANDREU 2008
Sceloporus lineatulus — HEIMES 2022
Sceloporus lineatulus — PAVÓN-VÁZQUEZ et al. 2024 
DistributionMexico (Isla Santa Catalina)

Type locality: Isla Santa Catalina, Gulf of California.  
Reproductionoviparous (not imputed, fide Zimin et al. 2022) 
TypesHolotype: USNM 64263 (Formerly AMNH 5478) 
DiagnosisDiagnosis: A robust species of medium size (length of head and body of adult male, 85 mm.), especially bristling with large, long-pointed but not spinous scales; 4-6 preauriculars in oblique row, relatively long and pointed, overlapping at bases; dorsal scales (7 straight longitudinal rows) much larger than ventrals; laterals crowded in oblique rows, graduated in size to meet ventrals, the shape changing through in.tennediate stages from angular, long-pointed, weakly denticulate scales to the rounded ventrals with their 2-4 equal points or scallops; rump and proximal caudals equal to dorsals; dorsals about 28 from interparietal to base of tail, 5 in head length (muzzle to interparietal); distance from base of 5th toe to end of 4th equal to length from tip of muzzle to anterior border of ear; femoral pores, 20. Coloration of adult male rufous dorsally, blue lateroventrally verging into green above, blue on chest between arms, and on chin; sides prominently marked from above arm to groin with about 11 longitudinal parallel brown lines following the direction of the scales; posterior gular region black, also black more or less as follows: on ventral arm, breast, median abdominal area, groin, ventral femur (Dickerson 1919: 467). 
CommentAbundance: only known from the type locality (Meiri et al. 2017). 
EtymologyThe Latin lineatus, "linear," and the diminutive -ulus refer to the finely striped dorsal pattern. 
  • 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
  • Dickerson, M. C. 1919. Diagnoses of twenty-three new species and a new genus of lizards from Lower California. Bull. Amer. Mus. Nat. Hist. 41 (10): 461-477 - get paper here
  • Grismer, L. L. & J. A. MCGUIRE 1996. Taxonomy and biogeography of the Sceloporus magister complex (Squamata: Phrynosomatidae) in Baja California, México. Herpetologica 52 (3): 416-427. - get paper here
  • Heimes, P. 2022. LIZARDS OF MEXICO - Part 1 Iguanian lizards. Edition Chimaira, Frankfurt Am Main, 448 pp.
  • 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
  • Köhler, G. & Heimes, P. 2002. Stachelleguane. Herpeton-Verlag (Offenbach), 174 pp.
  • Leaché, A.D. & Mulcahy, D.G. 2007. Phylogeny, divergence times and species limits of spiny lizards (Sceloporus magister species group) in western North American deserts and Baja California. Molecular Ecology 16: 5216–5233 - get paper here
  • Meiri, Shai; Aaron M. Bauer, Allen Allison, Fernando Castro-Herrera, Laurent Chirio, Guarino Colli, Indraneil Das, Tiffany M. Doan, Frank Glaw, Lee L. Grismer, Marinus Hoogmoed, Fred Kraus, Matthew LeBreton, Danny Meirte, Zoltán T. Nagy, Cristiano d 2017. Extinct, obscure or imaginary: the lizard species with the smallest ranges. Diversity and Distributions - get paper here
  • Murphy, R. W. 1983. Paleobiogeography and genetic differentiation of the Baja California herpetofauna. Occ. Pap. Cal. Acad. Sci. (137): 1-48 - get paper here
  • Pavón-Vázquez, C. J., Rana, Q., Farleigh, K., Crispo, E., Zeng, M., Liliah, J., ... & Blair, C. 2024. Gene Flow and Isolation in the Arid Nearctic Revealed by Genomic Analyses of Desert Spiny Lizards. Systematic Biology, syae001
  • 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
  • Recchio, Ian and David Lazcano. 2013. Sceloporus lineatulus (Isla Santa Catalina spiny lizard) diet and accidental mortality. Herpetological Review 44 (3): 513 - 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
  • Zimin, A., Zimin, S. V., Shine, R., Avila, L., Bauer, A., Böhm, M., Brown, R., Barki, G., de Oliveira Caetano, G. H., Castro Herrera, F., Chapple, D. G., Chirio, L., Colli, G. R., Doan, T. M., Glaw, F., Grismer, L. L., Itescu, Y., Kraus, F., LeBreton 2022. A global analysis of viviparity in squamates highlights its prevalence in cold climates. Global Ecology and Biogeography, 00, 1–16 - get paper here
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