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Elgaria paucicarinata (FITCH, 1934)

IUCN Red List - Elgaria paucicarinata - Least Concern, LC
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Higher TaxaAnguidae (Gerrhonotinae), Diploglossa, Anguimorpha, Sauria, Squamata (lizards)
Subspecies 
Common NamesE: San Lucan Alligator Lizard
S: Lagarto de Cuatro Patitas 
SynonymGerrhonotus paucicarinatus FITCH 1934: 173
Gerrhonotus multicarinatus DUMÉRIL & BIBRON 1939: 404 (fide FITCH 1938)
Gerrhonotus paucicarinatus — FITCH 1938
Elgaria paucicarinata — TIHEN 1949: 595
Elgaria paucicarinata — SMITH & TAYLOR 1950: 206
Gerrhonotus paucicarinatus — WERMUTH 1969: 26
Gerrhonotus paucicarinatus — STEBBINS 1985: 241
Elgaria paucicarinata — GOOD 1988: 77
Elgaria paucicarinata — LINER 1994: 47 
DistributionMexico (S Baja California)

Type locality: Todos Santos, Baja California.  
Reproductionoviparous 
TypesHolotype: MVZ 11768 (Mus. Vert. Zool. UC) 
DiagnosisAdditional details, e.g. a detailed description or comparisons (1563 characters), are available for collaborators and contributors. Please contact us for details. 
CommentSubspecies: Elgaria paucicarinata cedrosensis (FITCH 1934) has been elevated to full (evolutionary) species fide GRISMER & HOLLINGSWORTH 2001.

Distribution: see maps in GRISMER & HOLLINGSWORTH 2001, Leavitt et al. 2017: Fig. 1.

One of the diagnostic characters for E. paucicarinata is that it is weakly keeled (Good, 1988). However, lizards of the central peninsular population are strongly keeled, and large adults approach the condition found in E. multicarinata. 
EtymologyNamed after Latin pauci-, few, little + Latin carinata, keeled, ridged. [“...scales on upper arm and sides of tail smooth...”]. 
References
  • Fitch, H.S. 1934. A shift of specific names in the genus Gerrhonotus. Copeia 1934 (4): 172-173 - get paper here
  • Fitch, H.S. 1938. A Systematic Account of the Alligator Lizards (Gerrhonotus) in the Western United States and Lower California. American Midland Naturalist 20: 381-424 - get paper here
  • Grismer, L. L.; McGuire, J. A. 1993. The oases of central Baja California, Mexico. Part I. A preliminary account of the relict mesophilic herpetofauna and the status of the oases. Bull. Southern California Acad. Sci. 92 (1): 2-24 - get paper here
  • Grismer, L. Lee and Bradford D. Hollingsworth 2001. A taxonomic review of the endemic Alligator Lizard Elgaria paucicarinata (Anguidae: Squamata) of Baja California, México with a description of a new species. Herpetologica 57 (4):488-496 - get paper here
  • Grismer,L.L. 1988. Geographic variation, taxonomy, and biogeography of the anguid genus Elgaria (Reptilia: Squamata) in Baja California, Mexico. Herpetologica 44: 431-439 - 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
  • Lais, P. Mike 1976. Gerrhonotus paucicarinatus. Catalogue of American Amphibians and Reptiles (188): 1-2 - get paper here
  • Lais, P. Mike 1976. Gerrhonotus cedrosensis. Catalogue of American Amphibians and Reptiles (177): 1 - get paper here
  • Leavitt, D.H., Marion, A.B., Hollingsworth, B.D., Reeder, T.W. 2017. Multilocus phylogeny of alligator lizards (Elgaria, Anguidae): Testing mtDNA introgression as the source of discordant molecular phylogenetic hypotheses. Molecular Phylogenetics and Evolution - 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
  • Pianka, E.R. & Vitt, L.J. 2003. Lizards - Windows to the Evolution of Diversity. University of California Press, Berkeley, 347 pp. [review in Copeia 2004: 955] - get paper here
  • Stebbins,R.C. 1985. A Field Guide to Western Reptiles and Amphibians, 2nd ed. Houghton Mifflin, Boston
  • Tihen, J. A. 1949. The genera of gerrhonotine Iizards. American Midland Naturalist 41: 579-601 - get paper here
  • Valdez-Villavicencio, Jorge H. and Patricia Galina-Tessaro. 2014. Elgaria paucicarinata (San Lucan alligator lizard) field and preferred body temperatures. Herpetological Review 45 (3): 495 - get paper here
 
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