title: New Patagonian species of Liolaemus (Iguania: Liolaemidae) and novelty in the lepidosis of the southernmost lizard of the world: Liolaemus magellanicus.
abstract: We describe a new species within the genus Liolaemus from southeast Argentine Patagonia. This new taxon, Liolaemus yatel sp. nov., presents anatomical traits shared with the Liolaemus lineomaculatus section within the Liolaemus lineomaculatus group, especially the absence of precloacal pores in both sexes. However, Liolaemus yatel sp. nov. does not exhibit trifid dorsal scales, which is a diagnostic character of the L. lineomaculatus group. Moreover, this new species differs from other taxa of the L. lineomaculatus group in that dorsal and nuchal scales either completely lack keels or are slightly keeled. We also report, for the first time, the presence of trifid scales in Liolaemus magellanicus, another species included in the L. lineomaculatus section but constituting an independent lineage regarding the L. lineomaculatus group. The phenotypic traits of L. yatel sp. nov. and the presence of trifid scales in L. magellanicus provide additional information for the study of evolutionary relationships among the species of the L. lineomaculatus section, especially the establishment of their diagnostic character states.
authors.affiliation: Instituto de Herpetología, Fundación Miguel Lillo - Facultad de Ciencias Naturales e IML, UNT - Miguel Lillo 205, S. M. de Tucumán, Tucumán, Argentina.; Email: samiryjazmin@gmail.com.
authors.forename: Cristian Simón
authors.initials: CS
authors.lastname: Abdala
authors.affiliation: Centro de Investigaciones Puerto Deseado, Universidad Nacional de la Patagonia Austral, Avenida Prefectura Naval s/n, 9050 Puerto Deseado, Santa Cruz, Argentina.; Email: dproco@hotmail.com.
authors.forename: Diego Esteban
authors.initials: DE
authors.lastname: Procopio
authors.affiliation: CONICET-Consejo Nacional de Investigaciones Científicas y Técnicas. Argentina Laboratorio de Vertebrados. Instituto de Investigaciones Marinas y Costeras (IIMyC) - Universidad Nacional de Mar del Plata, Dean Funes 3250, Mar del Plata, Buenos Aires, Argentina.; Email: os2830@gmail.com.
authors.forename: Oscar Aníbal
authors.initials: OA
authors.lastname: Stellatelli
authors.affiliation: CONICET-Consejo Nacional de Investigaciones Científicas y Técnicas. Argentina Centro de Investigaciones Puerto Deseado, Universidad Nacional de la Patagonia Austral, Avenida Prefectura Naval s/n, 9050 Puerto Deseado, Santa Cruz, Argentina.; Email: alejandrotravaini@speedy.com.ar.
authors.forename: Alejandro
authors.initials: A
authors.lastname: Travaini
authors.affiliation: Instituto de Herpetología, Fundación Miguel Lillo - Facultad de Ciencias Naturales e IML, UNT - Miguel Lillo 205, S. M. de Tucumán, Tucumán, Argentina. CONICET-Consejo Nacional de Investigaciones Científicas y Técnicas. Argentina; Email: kobe_mar13@hotmail.com.
authors.forename: Mario Ricardo Ruiz
authors.initials: MR
authors.lastname: Monachesi
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D049628:Body Size; D001517:Coleoptera / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D017753:Ecosystem; D005260:Female; D008116:Lizards / Q000033:anatomy & histology / Q000145:classification* / Q000235:genetics / Q000254:growth & development; D008297:Male; D009929:Organ Size; D010802:Phylogeny