title: Description of the hemipenial morphology of Tupinambis quadrilineatus Manzani and Abe, 1997 (Squamata, Teiidae) and new records from Piauí, Brazil.
abstract: Few data are available on the morphology of the hemipenis of teiid lizards, especially those of the recently-defined genus Tupinambis, a widely-distributed group of large-bodied lizards. This study provides an illustrated description of the hemipenis of Tupinambis quadrilineatus, which is similar to that of other representatives of the Tupinambinae subfamily. New records of the species from the state of Piauí, in northeastern Brazil, are also presented.
authors.affiliation: Museu Paraense Emilio Goeldi, Departamento de Zoologia, Av. Perimetral, 1901, Bairro Terra Firme, CEP 66077-530, Belém, PA, Brazil.
authors.forename: Marcélia Basto
authors.initials: MB
authors.lastname: da Silva
authors.affiliation: Museu Paraense Emilio Goeldi, Departamento de Zoologia, Av. Perimetral, 1901, Bairro Terra Firme, CEP 66077-530, Belém, PA, Brazil.
authors.forename: Geraldo Rodrigues
authors.initials: GR
authors.lastname: de Lima-Filho
authors.affiliation: Museu Paraense Emilio Goeldi, Departamento de Zoologia, Av. Perimetral, 1901, Bairro Terra Firme, CEP 66077-530, Belém, PA, Brazil.
authors.forename: Aurea Aguiar
authors.initials: AA
authors.lastname: Cronemberger
authors.affiliation: Universidade Federal do Piauí, Campus Amílcar Ferreira Sobral, BR 343, KM 3.5, Bairro Meladão, s/nº, CEP 64800-000, Floriano, PI, Brazil.
authors.forename: Leonardo Sousa
authors.initials: LS
authors.lastname: Carvalho
authors.affiliation: Universidade Estadual de Campinas, Instituto de Biologia, Departamento de Biologia Animal, Rua Monteiro Lobato, 255, Distrito de Barão Geraldo, CEP 13083-862, Campinas, SP, Brazil.
authors.forename: Paulo Roberto
authors.initials: PR
authors.lastname: Manzani
authors.affiliation: Universidade Federal do Piauí, Campus Ministro Reis Veloso, Avenida São Sebastião 2819. CEP. 64202-220, Parnaíba, PI, Brazil.
authors.forename: Jânia Brito
authors.initials: JB
authors.lastname: Vieira
keywords: Hemipenis; Tupinambinae; Tupinambis; new records; systematics