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	Provedor de dados Neotropical Ichthyology (3) Autor Rapp Py-Daniel,Lúcia H. (3) Oliveira,Renildo R. de (1) Rocha,Marcelo S. (1) Sousa,Leandro M. (1) Zuanon,Jansen (1) Palavra-chave Amazon basin (1) Catfish (1) Freshwater fishes (1) Incomplete lateral line (1) Natural History (1) Neotropical catfishes (1) Parancistrus nudiventris (1) Plates ornamentation (1) Propimelodus araguayae (1) Propimelodus caesius (1) Propimelodus eigenmanni (1) Systematics (1) Taxonomy (1) Thorny catfish (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2007 (1) 2005 (2) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Description of two new species of Physopyxis and redescription of P. lyra (Siluriformes: Doradidae) Neotropical Ichthyology Sousa,Leandro M.; Rapp Py-Daniel,Lúcia H.. The genus and species Physopyxis lyra was originally described based on only one very distinctive specimen. Analysis of a larger number of specimens provided a more precise characterization of the genus and the type species. Additionally, two new species are described based on material already available in museums and new collections. Physopyxis lyra is characterized by having a well developed coracoid process with divergent tips, and only one series of spines on the lateral plates. Physopyxis ananas, new species, has a thin coracoid process, convergent, and more than one series of spines on the lateral plates. Physopyxis cristata, new species, is a slender species, characterized by an incomplete series of lateral plates and the presence of a middorsal... Tipo: Info:eu-repo/semantics/article Palavras-chave: Plates ornamentation; Incomplete lateral line; Taxonomy; Thorny catfish. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000400019 Description of a new species of Parancistrus (Siluriformes: Loricariidae) from the rio Xingu, Brazil Neotropical Ichthyology Rapp Py-Daniel,Lúcia H.; Zuanon,Jansen. Parancistrus nudiventris, new species, is described and compared with the congener P. aurantiacus. The new species has only been recorded from rio Xingu and can be distinguished from P. aurantiacus by having a naked abdomen (plated in P. aurantiacus), the presence of bluish dots in living specimens or spotted in preserved specimens (uniformly dark or clear brown or mottled, never spotted in P. aurantiacus), larger interbranchial distance (39-56% in HL vs. 24.9-39.5% in P. aurantiacus), narrower interorbital distance (26.8-38% in HL vs. 38.5-43.1% in P. aurantiacus). Parancistrus nudiventris also has buccal teeth more conspicuous than in P. aurantiacus. Main skeletal differences include the presence of a strong condyle on the lateral ethmoid for... Tipo: Info:eu-repo/semantics/article Palavras-chave: Parancistrus nudiventris; Freshwater fishes; Amazon basin; Natural History; Neotropical catfishes. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000400014 A new species of Propimelodus Lundberg & Parisi, 2002 (Siluriformes: Pimelodidae) from rio Araguaia, Mato Grosso, Brazil Neotropical Ichthyology Rocha,Marcelo S.; Oliveira,Renildo R. de; Rapp Py-Daniel,Lúcia H.. A new species of Propimelodus from the middle course of the rio Araguaia is described. Propimelodus araguayae, new species, can be distinguished from its congeners in having a conspicuous black dot on the base of the dorsal-fin rays (vs. a different pattern), large eyes (29.7-34.8% of head length and 62.7-74.7% of snout length vs. 14.5-21.1% and 31-44% in P. caesius and 9.5-19.7% and 17-38% in P. eigenmanni), anal-fin lobe present (vs. absent), premaxillary bone with three irregular rows of teeth (vs. 4-5 in P. caesius and 5-8 in P. eigenmanni), tip of anterior lateral process of basipterygium at the same level as the tip of the anterior medial process (vs. anterior lateral process extending beyond the tip of the anterior medial process), total number of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Catfish; Systematics; Propimelodus araguayae; Propimelodus eigenmanni; Propimelodus caesius. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000300007 Registros recuperados: 3 Primeira ... 1 ... Última

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