title: Two cases of polydactyly in wild brown howler monkeys (Alouatta guariba clamitans).
abstract: We report the first two cases of polydactyly in an atelid species: (i) a wild ca. 16-week-old infant female presenting seven digits in both feet and other bone malformations and (ii) a wild newborn male presenting six digits in both feet with the extra digit fused to the hallux.
authors.affiliation: Mantenedouro de Fauna Rincão do Araticum, Porto Alegre, Brazil.
authors.forename: Moira Ansolch
authors.initials: MA
authors.lastname: da Silva
authors.affiliation: Grupo de Investigación en Biología Evolutiva (GIBE), IEGEBA-CONICET, FCEyN, Universidad de Buenos Aires, Buenos Aires, Argentina.
authors.forename: Eliana R
authors.initials: ER
authors.lastname: Steinberg
authors.affiliation: GENEX Instituto de Exames Genéticos Ltda, Porto Alegre, RS, Brazil.
authors.forename: Giorgio A
authors.initials: GA
authors.lastname: Paskulin
authors.affiliation: Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
authors.forename: Fábio dos Santos
authors.initials: Fdos S
authors.lastname: Teixeira
authors.affiliation: Laboratório de Primatologia, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil.
authors.forename: Anamélia de Souza
authors.initials: Ade S
authors.lastname: Jesus
authors.affiliation: Grupo de Investigación en Biología Evolutiva (GIBE), IEGEBA-CONICET, FCEyN, Universidad de Buenos Aires, Buenos Aires, Argentina.
authors.forename: Marta D
authors.initials: MD
authors.lastname: Mudry
authors.affiliation: Laboratório de Primatologia, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil.
authors.forename: Júlio César
authors.initials: JC
authors.lastname: Bicca-Marques
mesh_terms: D000508:Alouatta / Q000002:abnormalities* / Q000235:genetics; D000818:Animals; D000831:Animals, Newborn / Q000002:abnormalities*; D000835:Animals, Wild / Q000002:abnormalities* / Q000235:genetics; D001118:Argentina; D001938:Brazil; D005260:Female; D008297:Male; D017689:Polydactyly / Q000235:genetics / Q000662:veterinary*; D014034:Toes / Q000002:abnormalities*
keywords: congenital limb malformation; karyotype; maternal care; syndrome; trisomy 13