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Registros recuperados: 1.061
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A black, non-troglomorphic amphibian from the karst of Slovenia: Proteus anguinus parkelj n. ssp. (Urodela: Proteidae) Naturalis
Sket, B.; Arntzen, J.W..
A morphologically distinct cavernicolous salamander Proteus anguinus from southeastern Slovenia (Bela Krajina) is described as P. a. parkelj ssp. n. It differs from P. a. anguinus in a dark pigmentation, fully developed eyes, a skull with broader and shorter bones and fewer teeth, a voluminous jaw musculature that gives the head a bulky appearance, a proportionally longer trunk with a higher number of vertebrae, shorter extremities, and a shorter tail. Most of these traits are considered to be plesiomorphic character states. An allozyme analysis over 40 loci has shown the new dark pigmented taxon to be genetically similar to a white and troglomorphic neighbouring population from Stična (DNei = 0.23). Both populations in turn are genetically dissimilar to a...
Tipo: Article / Letter to the editor Palavras-chave: Urodela; Proteus; Taxonomy; Morphology; Allozyme analysis; Ecology; Distribution.
Ano: 1994 URL: http://www.repository.naturalis.nl/record/503865
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A centuries old problem in nephtheid taxonomy approached using DNA data (Coelenterata: Alcyonacea) Naturalis
Ofwegen, L.P. van; Groenenberg, D.S.J..
The current centuries old classification of the family Nephtheidae is still mostly based on colony morphology. In this family the Indo-Pacifc genera Litophyton, Nephthea, Dendronephthya and Stereonephthya, and the Atlantic genus Neospongodes form a complex mix of closely related, poorly described species which cannot be recognized using only colony morphology. Attempts with the more modern approach of comparing skeleton composition (sclerites) have been only partly successful because of the extreme variation of sclerite forms present in these genera. The genus Chromonephthea Van Ofwegen, 2005, introduced for several species previously assigned to Dendronephthya, Nephthea and Stereonephthya, was established with sclerite morphology, but the true generic...
Tipo: Article / Letter to the editor Palavras-chave: Soft corals; Octocorallia; Nephtheidae; Dendronephthya; Litophyton; Neospongodes; Nephthea; Stereonephthya; Taxonomy; Internal transcribed spacer I and II; Indo-Pacific; 42.72.
Ano: 2007 URL: http://www.repository.naturalis.nl/record/256122
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A cladistic re-assessment of the <i>Polycystis</i> species complex (Polycystididae, Eukalyptorhynchia) OMA
Artois, T.J.; Schockaert, E.R..
The taxonomy of the genus <i>Polycystis</i> Koelliker, 1845 <i>sensu</i> Schockaert & Karling, 1975 is discussed. Character analysis reveals the monophyletic state of the three species groups these authors defined within it. As no synapomorphies for the three groups can be found, the genus is split in three genera: <i>Polycystis</i> Koelliker, 1845, <i>Macrorhynchus</i> Graff, 1882 and <i>Paulodora Marcus</i>, 1948. The systematic position of <i>Macrorhynchus yaganus</i> (Marcus, 1954) Evdonin, 1977 is also discussed, resulting in the erection of the new genus <i>Marcusia</i> gen. n.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phylogenetics; Taxonomy; Eukalyptorhynchia; Plathelminthes; Polycystididae; Polycystis.
Ano: 1998 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6815
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A contribution to the knowledge of the pectinacean Mollusca (Bivalvia: Propeamussiidae, Entoliidae, Pectinidae) from the Indonesian Archipelago Naturalis
Dijkstra, H.H..
During the Indonesian-Dutch SNELLIUS -II Expedition (1984-1985) to the Indonesian Archipelago 46 pectinacean species were collected from the Flores Sea and Banda Sea (5°52'-9°57'S, 118°12'-123°58'E) at littoral to bathyal depth (835 m). One new pectinid genus, viz. Glorichlamys gen. nov., six new propeamussiids, viz. Parvamussium araneum spec. nov., Parvamussium carbaseum spec. nov., Parvamussium cassium spec. nov., Parvamussium undosum spec. nov., Parvamussium virgatum spec. nov., Cyclopecten cancellus spec. nov., and one new entoliid, viz. Pectinella aequoris spec. nov. are described. Twelve new records of Pectinacea for this region are mentioned. For Ostrea squamosa Gmelin, 1791 a lectotype is designated. In addition Pectinidae of the...
Tipo: Article / Letter to the editor Palavras-chave: Mollusca; Bivalvia; Propeamussiidae; Entoliidae; Pectinidae; Taxonomy; Indonesia.; 42.73.
Ano: 1991 URL: http://www.repository.naturalis.nl/record/317854
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A família Lemnaceae Gray no Pantanal (Mato Grosso e Mato Grosso do Sul), Brasil Rev. Bras. Bot.
POTT,VALI JOANA; CERVI,ARMANDO CARLOS.
Realizou-se o levantamento de plantas aquáticas da família Lemnaceae no Pantanal do Mato Grosso e Mato Grosso do Sul, a qual está representada por nove espécies, distribuídas em quatro gêneros. Das espécies encontradas somente Wolffia brasiliensis Wedd. e Lemna valdiviana Phil. haviam sido registradas no Pantanal. As demais espécies são Spirodela intermedia W. Koch, Lemna aequinoctialis Welw., L. minuta Kunth, in Humb., Bonp. &amp; Kunth, Wolffiella welwitschii (Hegelm.) Monod, W. lingulata (Hegelm.) Hegelm., W. oblonga (Phil.) Hegelm. e Wolffia columbiana H. Karst. As Lemnaceae ocorrem em todas as 10 sub-regiões do Pantanal, com o maior número de espécies na sub-região do Nabileque, de solos mais férteis.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Duckweed; Lemnaceae; Pantanal wetland; Taxonomy.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041999000200007
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A large phylogeny of turtles (Testudines) using molecular data Naturalis
Guillon, J.-M.; Guéry, L.; Hulin, V.; Girondot, M..
Turtles (Testudines) form a monophyletic group with a highly distinctive body plan. The taxonomy and phylogeny of turtles are still under discussion, at least for some clades. Whereas in most previous studies, only a few species or genera were considered, we here use an extensive compilation of DNA sequences from nuclear and mitochondrial genes for more than two thirds of the total number of turtle species to infer a large phylogeny for this taxon. Our results enable us to discuss previous hypotheses on species phylogeny or taxonomy. We are thus able to discriminate between competing hypotheses and to suggest taxonomical modifications. Finally, we pinpoint the remaining ambiguities for this phylogeny and the species for which new sequences should be...
Tipo: Article / Letter to the editor Palavras-chave: MtDNA sequence; NuDNA sequence; Phylogenetics; Reptilia; Taxonomy; 42.82.
Ano: 2012 URL: http://www.repository.naturalis.nl/record/421559
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A Molecular Perspective On The Diversification Of Short-Tailed Opossums (Monodelphis: Didelphidae) Mastozool. neotrop.
Solari,Sergio.
As currently understood Monodelphis includes more than 22 species and is the most diverse genus of opossums (Didelphimorphia). No complete evaluation of the systematic relationships of its species has been attempted, despite the fact that several species groups and even genus-level groups have been proposed based on morphology, and that some of them are limited to recognized biogeographic regions. Here, genealogic relationships among 17 species were assessed based on phylogenetic analyses of 60 individual sequences (801 base pairs of the mitochondrial cytochrome b gene). The analyses cast doubts on the monophyly of Monodelphis, but species were consistently discriminated into eight species groups: (a) brevicaudata group, with five species, (b) adusta...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Didelphimorphia; Phylogenetics; Species limits; Taxonomy.
Ano: 2010 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832010000200007
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A monographic review of the Thermosbaenacea (Crustacea: Peracarida) A study on their morphology, taxonomy, phylogeny and biogeography Naturalis
Wagner, H.P..
In addition to a taxonomic review of the whole order Thermosbaenacea, the general morphology and chaetotaxy are discussed in detail. Due to the results of cuticular staining, and through the study of specimens with SEM techniques also, corrections to earlier interpretations could be made. A chaetotaxic classification, modified after the one of Watling (1989), is presented. In the taxonomic part 34 species are recognized, belonging to seven genera (one new), four families (one new). The examination of adult material of the type species of Monodella, i.e., Monodella stygicola Ruffo, 1949, warranted the creation of Tethysbaena gen. nov., to comprise all other taxa previously included in Monodella. Transferred to Tethysbaena are: M. argentarii Stella, 1951; M....
Tipo: Article / Letter to the editor Palavras-chave: Crustacea; Thermosbaenacea; Morphology; Chaetotaxy; Taxonomy; Phylogeny; Biogeogra- phy.; 42.74.
Ano: 1994 URL: http://www.repository.naturalis.nl/record/317596
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A multidisciplinary approach to the study of the fluminense vegetation Anais da ABC (AABC)
KELECOM,ALPHONSE; REIS,GEISA L.; FEVEREIRO,PAULO C.A.; SILVA,JANIE G.; SANTOS,MARCELO G.; MELLO NETO,CÍCERO B.; GONZALEZ,MARCELO S.; GOUVEA,RITA C.S.; ALMEIDA,GILBERTO S.S..
The fluminense vegetation, more specifically the flora from the Jurubatiba restinga has been investigated by a multidisciplinary team of botanists, chemist, radiobiologist, insect physiologists and geneticist. Vouchers of 564 specimens have been collected, identified, organized in an herbarium, and a database is being build up containing, in addition to classical botanical data, chemical data and information on the potential economic use either for landscape gardening, alternative foods or as medicinal plants. Phytochemical studies of the Guttiferae, Clusia hilariana, yielded oleanolic acid and nemorosone. Their biological activities against the haematophagous insect Rhodnius prolixus vector of Chagas disease have been investigated. Finally, it has been...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Taxonomy; Economic use; Oleanolic acid; Nemorosone; Polonium-210; Biological activities.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652002000100013
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A multi-gene phylogeny of Lactifluus (Basidiomycota, Russulales) translated into a new infrageneric classification of the genus Naturalis
Crop, E. de; Nuytinck, J.; Putte, K. van de; Wisitrassameewong, K.; Hackel, J.; Stubbe, D.; Hyde, K.D.; Roy, M.; Halling, R.E.; Moreau, P.-A.; Eberhardt, U.; Verbeken, A..
Infrageneric relations of the genetically diverse milkcap genus Lactifluus (Russulales, Basidiomycota) are poorly known. Currently used classification systems still largely reflect the traditional, mainly morphological, characters used for infrageneric delimitations of milkcaps. Increased sampling, combined with small-scale molecular studies, show that this genus is underexplored and in need of revision. For this study, we assembled an extensive dataset of the genus Lactifluus, comprising 80 % of all known species and 30 % of the type collections. To unravel the infrageneric relationships within this genus, we combined a multi-gene molecular phylogeny, based on nuclear ITS, LSU, RPB2 and RPB1, with a morphological study, focussing on five important...
Tipo: Article / Letter to the editor Palavras-chave: Milkcaps; Molecular evolution; Morphology; Taxonomy.
Ano: 2017 URL: http://www.repository.naturalis.nl/record/615530
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A multivariate analysis of taxonomic limits in Diplolaemus Bell 1843 Gayana
Victoriano,Pedro F; Coronado,Tanía M; Ortiz,Juan Carlos.
The gemís Diplolaemus Bell, 1843 is a common squamate component of the Patagonian región of South América. Considerable taxonomic confusión exists within this gemís, particularly about the status of Chilean-Andean populations and the actual distribution of D. leopardinas (Werner, 1898). In an attempt to clarify the taxonomic status and distribution of Diplolaemus species, we performed a principal component analysis (PCA) and discriminant function analysis (DFA) using both standard morphometric and meristic data. Multivariate summaries of morphometric data show that most species are poorly discriminated, with the exception of D. darwinii. In contrast, a PCA analyses performed on the meristic data clearly distinguish three discrete groups: 1. D. darwinii, 2....
Tipo: Journal article Palavras-chave: Species limits; Taxonomy; Patagonia; Polychrotidae.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382010000100006
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A neotype for Aegopinella nitidula (Drapamaud, 1805) (Mollusca: Gastropoda Pulmonata: Zonitidae) Naturalis
Gittenberger, E..
In order to preserve the current use of the name Aegopinella nitidula (Drapamaud, 1805), going back to Rossmässler (1835), a neotype is proposed for this taxon. The specimen concerned is described in the present paper. Two alleged syntypes in the collection of Drapamaud, in the Naturhistorisches Museum, Vienna, are not accepted as syntypes because they represent two other species. The case is referred to the ICZN for a ruling.
Tipo: Article / Letter to the editor Palavras-chave: Zonitidae; Aegopinella; Taxonomy; Neotype; 42.73.
Ano: 1993 URL: http://www.repository.naturalis.nl/record/318881
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A new cave species of Rhamdia (Siluriformes: Heptapteridae) from Serra do Ramalho, northeastern Brazil, with notes on ecology and behavior Neotropical Ichthyology
Bichuette,Maria Elina; Trajano,Eleonora.
Rhamdia enfurnada, a new troglobitic (exclusively subterranean) catfish, is described from the Gruna do Enfurnado, Serra do Ramalho, southwestern Bahia State, middle São Francisco River basin. It differs from epigean congeners from the São Francisco River basin by the variable eye size, ranging from reduced to externally invisible (bilateral asymmetry in development of eyes is frequently observed), with a conspicuous orbital concavity (orbital diameter varying from 6.4 to 13.6% of head length in R. enfurnada and from 14.5 to 24.4% in the epigean species); by the dark pigmentation reduced due to a decrease in density of melanophores, and also variable. In comparison to other cave species, R. enfurnada presents a low degree of troglomorphism regarding...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Subterranean catfishes; Rhamdia enfurnada; Bahia; São Francisco River basin; Taxonomy.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000400016
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A new Cephalobium Cobb (Nematoda, Cephalobiidae), a parasite of Anurogryllus Muticus (De Geer) (Orthoptera, Gryllidae) from Argentina Pap. Avulsos de Zool. (São Paulo)
Camino,Nora B.; Brividoro,Melina; Leyh,Gabriela.
A new species of Cephalobium from Gorina, La Plata, Argentina, parasiting nymphs of Anurogryllus muticus (De Geer) (Orthoptera, Gryllidae) is described and illustrated. This nematode can be characterized by having the stoma longer than broad, the glottoid apparatus anisoglottid and anisomorphic, divided into two portions, one with cuticularized walls and the other with three simple dorsal teeth. The male is further characterized by the presence of two long and separated spicules and short gubernaculum without any projection. Genital papillae are arranged in five postanal pairs.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cephalobium tridentata n. sp.; Taxonomy.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492006002500001
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A new characid fish, Hyphessobryconhexastichos (Characiformes: Characidae) from Chapada dos Parecis, Mato Grosso, Brazil Neotropical Ichthyology
Bertaco,Vinicius A.; Carvalho,Tiago P..
A new characid species, Hyphessobrycon hexastichos, is described from the upper rio Tapajós, Mato Grosso, Brazil. The new species is distinguished from all other Hyphessobrycon species by the presence of black zigzag longitudinal lines between longitudinal rows of scales in the lateral of body, maxilla with 3-5 teeth, i,6 pelvic-fin rays, 18-22 branched anal-fin rays, 4 scale rows above and 3 scale rows below of lateral line, lateral line with 9-13 perforated scales, and 33-35 scales in a longitudinal series.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Neotropical; Amazon basin; Rio Tapajós; Rio Juruena; Central Brazil; Taxonomy.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000300013
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A new deep-sea isopod from the Weddell Sea, Antarctica: Coperonus pinguis n. sp. (Crustacea, Isopoda, Munnopsidae) Naturalis
Brandt, Angelika.
A new species of Coperonus, C. pinguis, is described from the Antarctic deep sea. It is the first record of an Antarctic deep-sea species in this genus and the southernmost record of Coperonus.
Tipo: Article / Letter to the editor Palavras-chave: Taxonomy; Biogeography; Antarctica; Weddell Sea; Deep sea; Coperonus.
Ano: 1992 URL: http://www.repository.naturalis.nl/record/503974
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A new interstitial species of Gammarella (Amphipoda, Gammaridea) from the western Mediterranean Sea Naturalis
Martí, Amparo; Villora-Moreno, Santiago.
A new species of Gammarella Bate, 1857 is described from shallow water, inhabiting the interstitial system in soft bottoms of the Chafarinas Archipelago (western Mediterranean, N. Africa). The relationships of Gammarella with the genera Nuuanu and Cottesloe are briefly discussed. Numerical taxonomie methods are utilized to differentiate between the morphologically related species and the intermediate species. In a table the principal differentiating characters of Gammarella species are presented. Gammarella garciai n. sp. is characterized by its intermediate position between Gammarella, Nuuanu and Cottesloe, showing an intergradation of characters. Gammarella garciai n. sp. and G. merringannee show ecologically intermediate characters between the larger...
Tipo: Article / Letter to the editor Palavras-chave: Chafarinas Archipelago; Western Mediterranean; Marine Amphipoda; Taxonomy; Gammarella; New species.
Ano: 1995 URL: http://www.repository.naturalis.nl/record/504286
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A new Moenkhausia Eigenmann, 1903 (Ostariophysi: Characiformes) from Chapada Diamantina, rio Paraguaçu Basin, Bahia, Northeastern Brazil Neotropical Ichthyology
Benine,Ricardo C.; Castro,Ricardo M. C.; Santos,Alexandre C. A..
Moenkhausia diamantina, new species, is described from tributaries of the rio Paraguaçu, BA, northeastern Brazil. This species is distinguished from all congeners by features of body color pattern, the presence of scales on the predorsal median line and the number of anal-fin rays.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Taxonomy; Neotropical; Moenkhausia dyktiota; Moenkhausia levidorsa.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000300004
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A new, Neotropical species of Acanthocyclops (Copepoda: Cyclopoida: Cyclopidae) Naturalis
Reid, Janet W.; Suárez-Morales, Eduardo.
Acanthocyclops smithae, a new species of cyclopoid copepod and a member of the A. vernalis-robustus group, is described from Honduras and southeastern Mexico. The few previous records of species of Acanthocyclops in tropical latitudes apparently refer to isolated populations of a few widespread temperate species. Acanthocyclops smithae is the only known exclusively tropical member of the genus.
Tipo: Article / Letter to the editor Palavras-chave: Acanthocyclops; Copepoda; Cyclopoida; Taxonomy; Honduras; Mexico; Neotropics.
Ano: 1999 URL: http://www.repository.naturalis.nl/record/504895
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A new pale-spotted species of Hypostomus Lacépède (Siluriformes: Loricariidae) from the rio Tocantins and rio Xingu basins in central Brazil Neotropical Ichthyology
Zawadzki,Cláudio H.; Birindelli,José L. O.; Lima,Flávio C. T..
A new species of the genus Hypostomus Lacépède (Siluriformes, Loricariidae) from rio Tocantins and rio Xingu basins in central Brazil, is described. The new species is distinguished from its congeners by a unique combination of pale blotches over a darker background on head, body and fins, and conspicuous keels on head, predorsal region and lateral plates. Comments on the pale-spotted species of Hypostomus are provided.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hypostomus faveolus; Hypostomus plecostomus group; Taxonomy.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000300012
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