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Holbrookia propinqua BAIRD & GIRARD, 1852

IUCN Red List - Holbrookia propinqua - Least Concern, LC

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Higher TaxaPhrynosomatidae, Phrynosomatinae, Callisaurini; Iguania, Sauria, Squamata (lizards) 
SubspeciesHolbrookia propinqua propinqua BAIRD & GIRARD 1852
Holbrookia propinqua piperata SMITH & BURGER 1950
Holbrookia propinqua stonei HARPER 1932 
Common NamesKeeled Earless Lizard
propinqua: Northern Keeled Earless Lizard 
SynonymHolbrookia propinqua BAIRD & GIRARD 1852
Holbrookia propinqua — BOULENGER 1885: 208
Holbrookia propinqua propinqua — SMITH & TAYLOR 1950: 85
Holbrookia propinqua — CONANT & COLLINS 1991: 101
Holbrookia propinqua — LINER 1994
Holbrookia propinqua — LINER 2007

Holbrookia propinqua piperata SMITH & BURGER 1950
Holbrookia propinqua piperata SMITH & BURGER 1950: 167
Holbrookia propinqua piperata — LINER 2007 
DistributionUSA (S Texas),
Mexico (E Tamaulipas, N Veracruz)

Type locality: Between Indianola and San Antonio, Texas. Restricted to 9 miles southwest of Somerset, Atascosa County, by SMITH & TAYLOR 1950.

piperata: Type locality: Mexico: Etiopa, 2 mi S of Tecolutla, Veracruz.

propinqua: S Texas, Mexico (Tamaulipas); Type locality: Between Indianola and San Antonio, Texas.

stonei: Texas; Type locality: Padre Island, Texas.  
TypesLectotype: USNM 2671, desgnation by Axtell 1981: 211. Given as “unknown” by SMITH & TAYLOR 1950: 85.
Holotype: INHS (= UIMNH) 4048; P.W. Smith, and R.W. Reese; April 24, 1949 [piperata]
Holotype: ANSP 19879 [stonei] 
CommentH. p. stonei is not listed by CROTHER (2000), nor Liner 2007.

Schulte & DE QUEIROZ (2008) showed that Holbrookia maculata is shown to be paraphyletic with respect to Holbrookia propinqua. 
  • Axtell, Ralph W. 1981. Holbrookia Propinqua: Type specimens, collector, his route, and restriction of locality, with comments on Baird's "Reptiles of the Boundary" as an important taxonomic reference. Journal of Herpetology 15 (2): 211-217 - get paper here
  • Axtell, Ralph W. 1983. Holbrookia propinqua. Catalogue of American Amphibians and Reptiles (341): 1-2 - get paper here
  • Baird, S.F. and Girard,C. 1852. Characteristics of some new reptiles in the Museum of the Smithsonian Institution, part 2. Proc. Acad. Nat. Sci. Philadelphia 6: 125-129 - get paper here
  • Bartlett, R. D. & Bartlett, P. 1999. A Field Guide to Texas Reptiles and Amphibians. Gulf Publishing Co., Houston, Texas, 331 pp.
  • 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
  • Boundy, Jeff 1994. County records for Texas amphibians and reptiles. Herpetological Review 25 (3): 129 - get paper here
  • Conant,R. & Collins,J.T. 1991. A Field Guide to Reptiles and Amphibians of Eastern/Central North America, 3rd ed. Houghton Mifflin (Boston/New York), xx + 450 p.
  • Cooper Jr, William E. 1984. Female secondary sexual coloration and sex recognition in the keeled earless lizard, Holbrookia propinqua. Animal Behaviour 32: 1142-1150
  • Cooper Jr., W.E. 2005. Duration of movement as a lizard foraging movement variable. Herpetologica 61 (4): 363-372 - get paper here
  • Cope, E.D. 1880. On the zoological position of Texas. Bull. US Natl. Mus., No. 17: 1-51 - get paper here
  • Crother, B. I. (ed.) 2012. Standard Common and Current Scientific Names for North American Amphibians, Turtles, Reptiles, and Crocodilians, Seventh Edition. Herpetological Circular 39: 1-92
  • Dixon, James R. 2000. Amphibians and reptiles of Texas, second edition. Texas A&M University Press, 421 pp.
  • Günther, A. C. L. G. 1885. Reptilia and Batrachia. Biologia Centrali-Américana. Taylor, & Francis, London, 326 pp. [published in parts from 1885-1902; reprint by the SSAR 1987] - get paper here
  • Harper, Francis 1932. A new Texas subspecies of the lizard genus Holbrookia. Proc. Biol. Soc. Washington 45: 15-18 - 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
  • Lyons, Jacob I. N.; Thomas R. Simpson, and Francis L. Rose 2014. Morphology of an inland population of the keeled earless lizard (Holbrookia propinqua). Southwestern Naturalist Jun 2014, Vol. 59, No. 2: 306-312. - 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
  • Smith, H. M., & Burger, W.L. 1950. Herpetological results of the University of Illinois field expedition, Spring 1949. III. Sauria. Transactions of the Kansas Academy of Science 53 (2): 165-175 - get paper here
  • Terán-Juárez, Sergio A., Elí García Padilla, Vicente Mata-Silva, Jerry D. Johnson and Larry David Wilson. 2016. The herpetofauna of Tamaulipas, Mexico: composition, distribution, and conservation status. Mesoamerican Herpetology 3 (1): 43–113 - get paper here
  • Weidler, J M 2019. Protected areas of Texas in relation to Texas reptiles. Herpetological Review 50 (3): 462-473
  • Werning, H. 2018. Der Große Treck. Teil 6: Den Rio Grande entlang. Reptilia 23 (130): 68-78
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