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| Registros recuperados: 11.642 | |
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| Ingenito,Leonardo F. S.; Lima,Flávio C. T.; Buckup,Paulo A.. |
| A new species of Hyphessobrycon, H. peugeoti, is described from the middle portions of the rio Juruena drainage, upper rio Tapajós basin, Mato Grosso State, Brazil. It can be distinguished from all congeners, with the exception of H. loweae and H. heliacus, by a filamentous elongation of the dorsal fin and the approximately straight margin of the anal fin in adult males. It can be distinguished from both H. loweae and H. heliacus by an overall red coloration in life (vs. a golden coloration in life in the latter). Additionally, it can be distinguished from H. heliacus by the lack of chevron-like dark markings along the midline (vs. presence of chevron-like dark-markings in H. heliacus), and from H. loweae by the presence of only five horizontal scale rows... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Filamentous dorsal-fin; Hyphessobrycon elachys; Hyphessobrycon heliacus; Rio Tapajós basin; Rio Tocantins basin; Sexual dimorphism. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100033 |
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| Zawadzki,Cláudio Henrique; Oliveira,Renildo Ribeiro de; Debona,Tiago. |
| Hypostomus delimaiis described from the rio Tocantins, Tocantins State, and from the rio Araguaia, Pará, and Tocantins States, Brazil. The new species is distinguished from all other Hypostomusspecies, except from H. carinatus, H. hoplonites, and H. watwata, by the presence of five to eight (mode seven) predorsal plates limiting posterior border of the supraoccipital bone (vs. one to three plates). It can be distinguished from H. carinatus, H. hoplonites, and H. watwata by having pale spots over darker background on body and fins (vs. dark spots over lighter background). The species was only found in the middle stretches of the rio Tocantins-Araguaia basin. The first collection of specimens assigned to the new species was done in the rio Tocantins before... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cantão; Catfish; Hydroelectric; Hypostominae; Neotropical fishes; Taxonomy. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100073 |
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| Coronato-Ribeiro,Amanda; Pinto-da-Rocha,Ricardo; Rheims,Cristina Anne. |
| A new species of Stygnidae Simon, 1879, Imeri ajuba sp. nov., is described based on males and females from Coari, Amazonas, Brazil. The new species, differs from the only other species of the genus, Imerilomanhungae Pinto-da-Rocha & Tourinho, 2012, in having the following characteristics: three white marks on posterior margin of dorsal scutum, one white mark on free tergite I, three pairs of tubercles on area I, one pair of tubercles on area II, femur IV with ventromesal row of five tubercles, truncus of penis with six pairs of setae on lateral and ventral sides and ventral plate with two pairs of distal setae on dorsal portion. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazonas harvestmen Imeri ajuba sp. nov. taxonomy; Brazil. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000300011 |
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| Britski,Heraldo A.; Birindelli,José L. O.. |
| A new species of Leporinusis described based on specimens from the lower rio Tocantins, Pará State, Brazil. The new species is diagnosed by having conspicuous dark spots on center of scales on anterolateral portion of body, 33 or 34 scales in lateral line, 16 scales rows around caudal peduncle, four scale rows between dorsal-fin origin and lateral line and four between lateral line and pelvic-fin origin, and four teeth on premaxilla and four on dentary. The new species is similar to Leporinus gomesi, L. granti, and L. nijsseni for having three prominent dark midlateral blotches, smaller blotches formed by dermal pigment, five of which form an interrupted "X" between head and first midlateral blotch, small dark spots formed by epidermal pigment, terminal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anostomoidea; Leporinus badueli; Leporinus granti; Ostariophysi; Taxonomy. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100025 |
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| Bertani,Rogério. |
| A new species of Melloina Brignoli, 1985, Melloina santuario sp. nov., is described from a cave in Venezuela. This is the third species described in this rarely sampled genus, and the first species known from both male and female. The male of M. santuario sp. nov. is distinguished by a longer embolus and fewer number of spines on the anterior tarsi. Females and immatures are distinguished by having fewer numbers of labial cuspules. The description of a new species from male and female samples increases our knowledge about Melloina. This added knowledge is important to the understanding of mygalomorph relationships, mainly in the Theraphosoidina, as Melloina is a basal genus within the Paratropididae. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cave; Glabropelma; Mygalomorphae; Neotropical; Spider taxonomy. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000100013 |
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| Mendonça,Maria Cleide de; Queiroz,Gabriel Costa. |
| A new species of Collembola, Mucrosomia alticola sp. nov., is described and illustrated based on material from "Parque Nacional da Serra dos Órgãos" (State of Rio de Janeiro) and from "Parque Nacional da Serra do Caparaó" (State of Minas Gerais). This is the first record of a species of Mucrosomia for Brazil. The genus has, up to date, only three species and can be diagnosed by the absence of eyes and pigmentation, PAO present, tenent hair pointed, Abd V and VI fused, manubrium with 1+1 chaetae on anterior side, long dens and a remarkable mucro with five teeth. The presence of chaetae on ventral thorax, between segments II-III, supports the new species. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anurophorinae; Diversity; Neotropics; Taxonomy. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000200012 |
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| Abbate,Daniel; Cavallari,Daniel Caracanhas. |
| Nassarius levis sp. nov. is described from Canopus Bank, off Ceará, Northeast Brazil, based on shell morphology. It differs from other Brazilian species of the genus in having a more elongate shell, with a weakly developed parietal shield and a notably smooth surface. This last trait has not yet been described among the Western Atlantic Nassarius, but it is common to other congeners from the Eastern Atlantic, such as Nassarius elatus (Gould, 1845) and the Indo-Pacific, such as Nassarius excellens (Kuroda & Habe, 1961). |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Deep-water; Nassariinae; Smooth sculpture. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492013000100001 |
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| Matamoros,Wilfredo A.; Chakrabarty,Prosanta; Angulo,Arturo; Garita-Alvarado,Carlos A.; McMahan,Caleb D.. |
| A new species of Roeboides is described from the Pacific slope of Costa Rica and Panama. Roeboides bussingi differs from all other Central American Roeboides and all members of the R. guatemalensis species group by the following combination of characters: presence of 18-22 scales above the lateral line (vs. 12-16 in R. dientito); 15-22 scales below the lateral line (vs. 10-14 in R. dientito, and 20-24 in R. loftini); an inconspicuous, sometimes absent, crescent-shaped humeral spot (vs. a large round, conspicuous humeral spot in R. carti, R. dayi, R. dientonito, R. ilseae, R. loftini,and R. occidentalis); a small wedge-shaped spot that does not reach the lateral line (vs. a large spot crossing the lateral line in R. guatemalensis); a teardrop shaped caudal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Central America; Characinae; Distribution; Freshwater; Pacific Slope. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000200285 |
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| Bertaco,Vinicius A.; Malabarba,Luiz R.. |
| Hollandichthys taramandahy, new species, is described from the rio Tramandaí, rio Mampituba, and rio Araranguá basins, coastal drainages of Rio Grande do Sul and Santa Catarina States, Brazil. The new species is distinguished from H. multifasciatus, the single recognized species of the genus, by the presence of a small black spot covering the base of median caudal-fin rays, by the lower number of dorsal and ventral procurrent caudal-fin rays, by the absence of a black spot located along anterior half of adipose-fin, and by the absence of humeral spot in specimens larger than 60 mm of standard length. Comments about the geographic distribution and diagnosis are provided for the genus. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atlantic Forest; Lambari-listrado; Neotropical Fish; Pseudochalceus; Rachoviscus. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000400767 |
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| Araújo,Maíra Xavier; Bravo,Freddy. |
| A singular group of 19 species of Neotropical Trichomyia Haliday in Curtis, 1839 presents four segments in the palpus, the first two partially fused; five of these species were included in the subgenus Opisthotrichomyia Bravo, 2001 and seven in the subgenus BrachiotrichomyiaBravo & Araújo, 2013. A new species from Brazil is described and a new subgenus proposed for four Neotropical species of this morphological group: T. biloba Quate, 1999 from Panama, and T. onorei Bravo, 2002, T. queirozi Bravo, 2002 and T. horrida sp. nov. from Brazil. Syntrichomyia subgen. nov. can be recognized by its fused gonocoxites and gonostyli, and by its bilobed hypoproct. A key to the known species (males) of this new subgenus is presented. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brazil; Neotropics; Syntrichomyia subgen. nov; Taxonomy; Trichomyiinae. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000400014 |
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| Sanchez, Wilfried; Burgeot, Thierry; Porcher, Jean-marc. |
| Multi-biomarker approaches are used to assess ecosystem health and identify impacts of environmental stress on organisms. However, exploration of large datasets by environmental managers represents a major challenge for regulatory application of this tool. Several integrative tools were developed to summarize biomarker responses. The aim of the present paper is to update calculation of the "Integrated Biological Response" (IBR) described by Beliaeff and Burgeot (Environ Toxicol Chem 21:1316-1322, 2002) to avoid weaknesses of this integrative tool. In the present paper, a novel index named "Integrated Biological Responses version 2" based on the reference deviation concept is presented. It allows a clear discrimination of sampling sites as for the IBR, but... |
| Tipo: Text |
Palavras-chave: Biomarkers; Data analysis; Graphic tools; Three-spined stickleback. |
| Ano: 2013 |
URL: https://archimer.ifremer.fr/doc/00139/25069/23191.pdf |
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| Registros recuperados: 11.642 | |
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