Tropidurus helenae

{{Short description|Species of lizard}} {{Speciesbox | image = | status = LC | status_system = IUCN3.1 | status_ref = <ref name="iucn status 11 November 2021">{{cite iucn |author1=Colli, G.R. |author1-link=species:Gauarino Rinaldi Colli |author2=Fenker, J. |author2-link=species:Jéssica Fenker |author3=Tedeschi, L. |author3-link=species:Leonardo G. Tedeschi |author4=Bataus, Y.S.L. |author4-link=species:Yeda S. de L. Bataus |author5=Uhlig, V.M. |author5-link=species:Viktor Uhlig |author6=Lima, A. |author7=Nogueira, C. de C. |author7-link=species:Cristiano de Campos Nogueira |author8=Borges-Nojosa, D.M. |author8-link=species:Diva Maria Borges-Nojosa |author9=Costa, G.C. |author9-link=species:Gabriel Correira Costa |author10=de Moura, G.J.B. |author10-link=species:Geraldo Jorge Barbosa de Moura |author11=Winck, G. |author11-link=species:Gisele R. Winck |author12=Silva, J.R.S. |author13=Viñas, L.V. |author13-link=species:Laura Verrastro Viñas |author14=Ribeiro Júnior, M.A. |author14-link=species:Marco Antônio Ribeiro-Júnior |author15=Hoogmoed, M.S. |author15-link=species:Marinus Steven Hoogmoed |author16=Tinôco, M.S.T. |author16-link=species:Moacir Santos Tinôco |author17=Almeida-Santos, P. |author17-link=species:Patrícia Almeida dos Santos |author18=Valadão, R. |author18-link=species:Rafael Martins Valadão |author19=de Oliveira, R.B. |author20=Avila-Pires, T.C.S. |author20-link=species:Teresa Cristina Sauer de Ávila-Pires |author21=Ferreira, V.L. |author22=de Menezes, V.A. |author22-link=species:Vanderlaine Amaral de Menezes |date=2021 |title=''Tropidurus helenae'' |volume=2021|article-number=e.T49845566A159255198 |url= https://www.iucnredlist.org/species/49845566/159255198|access-date=16 December 2021}} (in Portuguese).</ref> | genus = Tropidurus | species = helenae | authority = (Manzani & Abe, 1990) | synonyms = *''Tapinurus helenae'' <br />{{small|Manzani & Abe, 1990}} *''Tropidurus helenae'' <br />{{small|— Frost, 1992}} | synonyms_ref = <ref name=RDB/> }}

'''''Tropidurus helenae''''' is a species of lizard in the family Tropiduridae.<ref name=RDB>{{NRDB species|genus=Tropidurus|species=helenae|access-date=5 April 2022}}</ref> The species is native to northeastern Brazil.<ref name=RDB/>

==Etymology== The specific name, ''helenae'', is in honor of Brazilian herpetologist Helena Ribas Lopes.<ref>Beolens B, Watkins M, Grayson M (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii + 296 pp. {{ISBN|978-1-4214-0135-5}}. (''Tropidurus helenae'', p. 120).</ref>

==Geographic range== ''T. helenae'' is endemic to the Brazilian state of Piauí.<ref name="iucn status 11 November 2021"/>

==Habitat== The preferred natural habitat of ''T. helenae'' is savanna.<ref name="iucn status 11 November 2021"/>

==Description== The holotype of ''T. helenae'' has a snout-to-vent length (SVL) of {{cvt|7.0|cm|in}}, plus a tail length of {{cvt|12.2|cm|in}}.<ref name="iucn status 11 November 2021"/>

==Behavior== ''T. helenae'' is terrestrial, diurnal, and saxicolous (rock-dwelling).<ref name="iucn status 11 November 2021"/>

==Diet== ''T. helenae'' preys upon termites.<ref name="iucn status 11 November 2021"/>

==Reproduction== ''T. helenae'' is oviparous.<ref name=RDB/>

==References== {{Reflist}}

==Further reading== *Frost DR (1992). "Phylogenetic analysis and taxonomy of the ''Tropidurus'' group of lizards (Iguania: Tropiduridae)". ''American Museum Novitates'' (3033): 1–68. (''Tropidurus helenae'', new combination). *Manzani PR, Abe AS (1990). "A New Species of ''Tapinurus'' from the Caatinga of Piaui, Northeastern Brazil (Squamata: Tropiduridae)". ''Herpetologica'' '''46''' (4): 462–467. (''Tapinurus helenae'', new species). *Pianka ER, Vitt LJ (2003). ''Lizards: Windows to the Evolution of Diversity''. Berkeley: University of California Press. 346 pp. {{ISBN|978-0520234017}}. (''Tropidurus helenae'', p. 165). *Uchôa, Lucas Rafael; Delfim, Fagner Ribeiro; Mesquita, Daniel Oliveira; Colli, Guarino Rinaldi; Garda, Adrian Antonio; Guedes, Thaís B. (2022). "Lizards (Reptilia: Squamata) from the Caatinga, northeastern Brazil: Detailed and updated overview". ''Vertebrate Zoology'' '''72''': 599–659.

Category:Tropidurus Category:Reptiles described in 1990 Category:Endemic reptiles of Brazil Category:Lizards of Brazil