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Please use this identifier to cite or link to this item: https://repositorio.museu-goeldi.br/handle/mgoeldi/121
metadata.dc.type: artigo
Title: The skull and abdominal skeleton of Stenocercus dumerilii (Steindachner, 1867) (Reptilia: Squamata: Iguania)
Other Titles: Crânio e esqueleto abdominal de Stenocercus dumerilii (Steindachner, 1867) (Reptilia: Squamata: Iguania)
metadata.dc.creator: Hernández-Ruz, Emil José
Ávila-Pires, Teresa Cristina Sauer de
Abstract: The objective of this study is to describe the skull and abdominal skeleton of the lizard Stenocercus dumerilii (Steindachner, 1867), with emphasis on those characters used in phylogenetic studies involving the genus Stenocercus. The peculiar shape of the head (pyramidal, with a distinct canthal-superciliary ridge that ends in a prominent postsupraciliary scale) results in part from the shape of the prefrontal and postfrontal bones, both of which bear protuberances projecting towards the orbital cavity. The postfrontal bone represents the highest point of the cranium. Contrary to what has been observed in other species of Stenocercus and in most Tropiduridae, the studied specimens of S. dumerilii presented a single pair of xiphisternal inscriptional ribs (followed by a pair of posterior xiphisternal processes). Besides, they presented five pairs of postxiphisternal inscriptional ribs widely separated ventrally. One specimen (of two studied) showed the pineal foramen completely enclosed by the frontal instead of in frontoparietal suture.
Keywords: Iguania
Cranial osteology
Abdominal skeleton
Stenocercus dumerilii
Osteologia craniana
Esqueleto abdominal
Squamata
Reptilia
Publisher: Museu Paraense Emílio Goeldi
Citation: HERNÁNDEZ-RUZ, Emil Jos; AVILA-PIRES, Teresa Cristina Sauer. The skull and abdominal skeleton of Stenocercus dumerilii (Steindachner, 1867) (Reptilia: Squamata: Iguania). Boletim do Museu Paraense Emílio Goeldi. Ciências Naturais, Belém, v. 3, n. 3, p. 203-216, set.- dez. 2008. Disponível em: < http://www.museu-goeldi.br/editora/bn/naturais_v3n3(2008).html > Acesso em: 30 mar. 2009
URI: http://repositorio.museu-goeldi.br/handle/mgoeldi/121
Issue Date: Sep-2008
Appears in Collections:Zoologia - Artigos Publicados em Periódicos

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