Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 93
Primeira ... 12345 ... Última
Imagem não selecionada

Imprime registro no formato completo
A Late Cretaceous gastropod homing scar (possibly ichnogenus Lacrimichnus) from southern Limburg, The Netherlands Naturalis
Jagt, J.W.M..
An isolated gastropod homing scar, etched into an arcoscalpelline (cirripede) scutum, is recorded from the upper Nekum Member (Maastricht Formation, upper Maastrichtian) at the ENCI-HeidelbergCement Group quarry. This trace may be assignable to the ichnogenus Lacrimichnus Santos, Mayoral & Muñiz, that comprises etching scars produced by Neogene calyptraeid and/or capulid gastropods and ostreid bivalves from southern Spain and Portugal. However, it differs from both ichnospecies currently contained in that ichnogenus, L. bonarensis and L. cacelensis, in showing a relatively deep depression around the rim, irregularly distributed pit- and slit-like depressions, and an irregularly subcircular outline. Despite the wealth of available hard substrates...
Tipo: Article / Letter to the editor Palavras-chave: Trace fossil; Homing scar; Gastropoda; Lacrimichnus; Cirripedia; Upper Cretaceous; Maastrichtian; The Netherlands; 38.22; 42.73.
Ano: 2007 URL: http://www.repository.naturalis.nl/record/217413
Imagem não selecionada

Imprime registro no formato completo
A Miocene molluscan faunule from Caucagua (Miranda State, Venezuela), with the description of a new species of Tryonia (Mollusca, Gastropoda) Naturalis
Wesselingh, F.P.; Macsotay, O..
A molluscan faunule from the Miocene Cumaca Formation of the western margin of the Tuy Basin (Venezuela) is described. The fauna yields two species of freshwater snails and a single terrestrial snail species. Tryonia vivasi nov. spec. is described from the fauna, and its biogeographical significance is discussed.
Tipo: Article / Letter to the editor Palavras-chave: Miocene; Venezuela; Gastropoda; Tryonia; New species; Cumaca Formation; 42.73; 38.22.
Ano: 2006 URL: http://www.repository.naturalis.nl/record/235213
Imagem não selecionada

Imprime registro no formato completo
A model of fluff layer erosion and subsequent bed erosion in the presence of the bioturbator, Hydrobia ulvae ArchiMer
Orvain, Francis; Le Hir, Pierre; Sauriau, Pierre-guy.
Previous studies have shown that the gastropod Hydrobia ulvae destabilizes the top layers of fine-grained sediments. This process is mediated by the formation of a "biogenic" fluff layer that includes tracks, faecal pellets and mucus. This fluff layer has been shown to be easily resuspended before general bed erosion. In order to examine how fluff layer and bed. erosion interact, flume experiments were performed with fluid sediments of varying water contents. Ten thousand snails were placed and allowed to crawl for 5 h on the sediment surface, and then the resuspended sediment mass was measured in response to step-wise shear stress increases. Two distinct erosion phases were observed: (1) initial resuspension of the fluff layer and (2) the subsequent bed...
Tipo: Text Palavras-chave: Gastropoda; Erosion sediment; Bioturbation; Cohesive sediment; Marine sediment.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/publication-805.pdf
Imagem não selecionada

Imprime registro no formato completo
A Napaeopsis species (Gastropoda: Pulmonata: Enidae) from the Peloponnese, Greece Naturalis
Gittenberger, E..
Three Napaeopsis species were known from Greece. A fourth one is described now as N. mennoi spec. nov. It is the first record of the genus for the Peloponnese.
Tipo: Article / Letter to the editor Palavras-chave: Gastropoda; Pulmonata; Enidae; Napaeopsis; New species; Greece.
Ano: 2008 URL: http://www.repository.naturalis.nl/record/273877
Imagem não selecionada

Imprime registro no formato completo
A new species of Gulella (Pulmonata: Streptaxidae) from montane forest in the Ndoto Mountains, Kenya Naturalis
Rowson, B.; Seddon, M.B.; Tattersfield, P..
Gulella mkuu spec. nov. is described from montane forest in the isolated Ndoto Mountains of northern Kenya. Although exceptionally large for the genus, shell, genitalia and radula features suggest it is more closely related to the "G. sellae-ugandensis" complex than to other very large East African species in the subgenus Primigulella Pilsbry. G. mkuu spec. nov. is apparently endemic to the Ndotos.
Tipo: Article / Letter to the editor Palavras-chave: Gastropoda; Streptaxidae; New species; Kenya; Ndoto / Ndotos; 42.73.
Ano: 2009 URL: http://www.repository.naturalis.nl/record/311942
Imagem não selecionada

Imprime registro no formato completo
A new species of the genus Notharinia Vermeulen, Phung & Truong, 2007 from Peninsular Malaysia (Mollusca, Caenogastropoda, Pupinidae) Naturalis
Maassen, W.J.M..
A new species of the terrestrial caenogastropodan family Diplommatinidae is described from Peninsular Malaysia, viz. Notharinia linnei.
Tipo: Article / Letter to the editor Palavras-chave: Mollusca; Gastropoda; Caenogastropoda; Pupinidae; Notharinia; Taxonomy; South-east Asia; Peninsular Malaysia; 42.73.
Ano: 2008 URL: http://www.repository.naturalis.nl/record/261772
Imagem não selecionada

Imprime registro no formato completo
A new species of the operculate land snail genus Maizaniella from Liberia (Gastropoda, Caenogastropoda) Naturalis
Winter, A.J. de.
Maizaniella sapoensis spec. nov. from Liberia is described. The species is provisionally att ributed to the subgenus Spirulozania. It is by far the smallest known member of the genus, with an adult shell diameter of just over 2 mm.
Tipo: Article / Letter to the editor Palavras-chave: Mollusca; Gastropoda; Maizaniidae; Maizaniella; Spirulozania; West Africa; Liberia; Sapo National Park; 42.73.
Ano: 2009 URL: http://www.repository.naturalis.nl/record/311945
Imagem não selecionada

Imprime registro no formato completo
A revision of the polytypic Albinaria hippolyti (Boettger, 1878) from Crete (Gastropoda Pulmonata: Clausiliidae) Naturalis
Schilthuizen, M.; Welter-Schultes, F.W.; Wiese, V..
On the basis of both detailed distributional field studies and morphological analyses, a revision of the polytypic species Albinaria hippolyti from Central and Eastern Crete is presented. True subspecies are distinguished from mere geographic varieties by the presence of narrow hybrid zones. Using this criterion, four adjoining subspecies are recognised: A. h. hippolyti (Boettger, 1878), A. h. aphrodite (Boettger, 1883), A. h. holtzi (Sturany, 1904) and A. h. harmonia subspec. nov. Additionally, two geographically isolated and conchologically distinctive forms are also treated as subspecies: A. h. arthuriana (Boettger, 1878) and A. h. asterousea subspec. nov. The geographical distribution and variability of each subspecies is described in detail. A. h....
Tipo: Article / Letter to the editor Palavras-chave: Gastropoda; Pulmonata; Clausiliidae; Albinaria hippolyti; Taxonomy; Hybrid zones; Variability; Zoogeography; 42.73.
Ano: 1993 URL: http://www.repository.naturalis.nl/record/318774
Imagem não selecionada

Imprime registro no formato completo
Anatomical evidence for the occurrence of Lymnaea (Galba) palustris (O.F. Müller, 1774) and L. (Galba) corvus (Gmelin, 1778) (Gastropoda: Lymnaeidae) in the Netherlands Naturalis
Velde, G. van der; Kessel, C.M. van.
A study was made on the Lymnaea (Galba) palustris complex in The Netherlands. Investigations on the genitalia proved that in The Netherlands two species are present, viz. L. palustris (O. F. Müller, 1774) and L. corvus (Gmelin, 1778), which can not in all cases be distinguished by shell characters. Genitalia were prepared, drawn and several measurements were carried out to investigate the variation within the two species. It appeared that most characters show a partial or total overlap. Some characters appeared to separate the two species absolutely. One of these is very useful for a quick distinction of both species, viz. the situation of the truncus receptaculi with respect to the oviductus, which character is already visible after a general dissection...
Tipo: Article / Letter to the editor Palavras-chave: Mollusca; Gastropoda; Lymnaeidae; Lymnaea (Galba) palustris; L. (Galba) corvus; Anatomy; The Netherlands; 42.73.
Ano: 1984 URL: http://www.repository.naturalis.nl/record/318120
Imagem não selecionada

Imprime registro no formato completo
Bibliography of Cuban terrestrial Mollusca, including related and biohistorical papers on Cuban malacology Naturalis
Breure, A.S.H.; González Guillén, A..
This paper presents a comprehensive overview of literature on Cuban terrestrial molluscs since the 18th century. It currently cites approximately 1000 references, dealing with a) primary and secondary sources directly treating Cuban taxa or relevant for the study of the Cuban malacofauna; b) abstracts of congresses, unpublished theses, and internal reports ('grey literature'); and c) biohistorical papers dealing with the life and work of Cuban malacologists. To provide some context, we also give brief overviews of Cuban and non-Cuban authors and journals issued on the island relevant for Cuban malacology.
Tipo: Article / Letter to the editor Palavras-chave: Bibliography; Biohistory; Cuba; Gastropoda; Mollusca; Malacology; 42.73.
Ano: 2010 URL: http://www.repository.naturalis.nl/record/339298
Imagem não selecionada

Imprime registro no formato completo
Brooding in a temperate zone land snail: seasonal and regional patterns Naturalis
Sulikowska-Drozd, A.; Maltz, T.K.; Kappes, H..
The goal of this study is to assess if the reproductive strategy of a brooding land snail shifts along a climatic gradient. We focused on the following traits: timing and length of the reproductive season, brood size, ontogenetic dynamics of embryos, and reproductive mode (viviparity versus egg-laying). We dissected the central European door snail Alinda biplicata, collected monthly from eight populations covering the oceaniccontinental climatic gradient within the species’ distribution range. Forty percent of the 1706 dissected individuals were brooding. The species displayed a spring-summer reproductive activity pattern: intrauterine brooding was recorded between March and September; first embryos of a developmental stage that equals that of live-born...
Tipo: Article / Letter to the editor Palavras-chave: Clausiliidae; Gastropoda; Life cycle; Moisture; Mollusca; Vivaparity; 42.73.
Ano: 2013 URL: http://www.repository.naturalis.nl/record/447983
Imagem não selecionada

Imprime registro no formato completo
Carination strikes the eye: extreme shell shapes and sibling species in three Andean genera of the Orthalicidae (Gastropoda, Stylommatophora) Naturalis
Breure, A.S.H..
Two new sibling species are described, Bostryx multiconspectus spec. nov and B. primigenius spec. nov., one of which is carinate. From the carinate taxa known in the Orthalicidae, 16 are occurring at localities in the Andes from northern Peru to northwestern Argentina. They belong to three genera, Bostryx, Neopetraeus and Scutalus. It is hypothesized that carination originated independently in these lineages.
Tipo: Article / Letter to the editor Palavras-chave: Gastropoda; Orthalicidae; Bostryx; Neopetraeus; Scutalus; Argentina; Chile; Peru; Taxonomy; Land snails; 72.73.
Ano: 2008 URL: http://www.repository.naturalis.nl/record/292113
Imagem não selecionada

Imprime registro no formato completo
CHILEAN MARINE MOLLUSCA OF NORTHERN PATAGONIA COLLECTED DURING THE CIMAR-10 FJORDS CRUISE Gayana
Cárdenas,Javiera; Aldea,Cristian; Valdovinos,Claudio.
The tip of the South American cone is one of the most interesting Subantarctic areas, both biogeographically and ecologically. Nonetheless, knowledge of the area's biodiversity, in particular that of the subtidal marine habitats, remains poor. Therefore, in 2004, a biodiversity research project was carried out as a part of the cruise Cimar-10 Fjords, organized and supported by the Chilean National Oceanographic Committee (CONA). The results of the subtidal marine mollusk surveys are presented herein. The samples were collected aboard the Agor 60 "Vidal Gormaz" in winter 2004. The study area covered the northern Chilean Patagonia from Seno de Relocanví (41°31'S) to Boca del Guafo (43°49'S), on the continental shelf from 22 to 353 m depth. The Mollusca were...
Tipo: Journal article Palavras-chave: Biodiversity; Taxonomy; South America; Fjords; Polyplacophora; Gastropoda; Bivalvia; Scaphopoda.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382008000200010
Imagem não selecionada

Imprime registro no formato completo
Clio piatkowskii, a mesopelagic pteropod new to science (Gastropoda, Opisthobranchia) Naturalis
Spoel, S. van der; Schalk, P.H.; Bleeker, J..
A pteropod species new to science: Clio piatkowskii is described from benthopelagic samples taken in high Antarctic waters of the Weddell Sea. Comparisons with related species are made and its taxonomic place in the genus Clio is discussed.
Tipo: Article / Letter to the editor Palavras-chave: Gastropoda; Pteropoda; Clio; Taxonomy; Plankton; Antarctica.
Ano: 1992 URL: http://www.repository.naturalis.nl/record/504812
Imagem não selecionada

Imprime registro no formato completo
Community ecology of tropical forest snails: 30 years after Solem Naturalis
Schilthuizen, M..
Since Solem’s provocative claim in the early 1980s that land snails in tropical forests are neither abundant nor diverse, at least 30 quantitative-ecological papers on tropical land snail communities have appeared. Jointly, these papers have shown that site diversity is, in fact, high in tropical forests; often more than 100 species have been recorded per site, which is somewhat more than normally found at sites in higher latitudes. At the same time, however, point diversities (which usually range between 10 and 30 species per quadrat) appear to be no different from the ones recorded for temperate localities, which suggests that the number of ways in which syntopic resource space can be subdivided among different land snail species has an upper limit that...
Tipo: Article / Letter to the editor Palavras-chave: Mollusca; Gastropoda; Rain forests; Species-richness; Biodiversity; Species-abundance-distributions; 42.73.
Ano: 2011 URL: http://www.repository.naturalis.nl/record/366791
Imagem não selecionada

Imprime registro no formato completo
Comparative reproductive anatomy in the South African giant land snails (Gastropoda: Pulmonata: Achatinidae) Naturalis
Mead, A.R..
The history and current taxonomic status of 62 nominal taxa are revised that have been associated in the literature with the subgenus Tholachatina Bequaert, 1950, of genus Archachatina Albers, 1850, and the genus Cochlitoma Férussac, 1821, in the land snail family Achatinidae Swainson, 1840. Tangible, reliable characters have been found in the detailed features of the reproductive anatomy in this family. The results of comparative anatomical study convincingly reflect phylogeny in contrast to the comparative study of only the shell characters. This latter more strongly reflects the effects of the intrinsically variable environment over time. In the present study, both sets of characters are needed to refine identification. Change, and therefore...
Tipo: Article / Letter to the editor Palavras-chave: Mollusca; Gastropoda; Pulmonata; Achatinidae; Biogeography; Taxonomy; Genital anatomy; Southern Africa; East Africa; 42.73.
Ano: 2004 URL: http://www.repository.naturalis.nl/record/214451
Imagem não selecionada

Imprime registro no formato completo
Costigulella primennilus spec. nov., a new minute western African terrestrial snail, with remarks on the genus Costigulella (Gastropoda Pulmonata: Streptaxidae) Naturalis
Winter, A.J. de.
Costigulella primennilus spec. nov. is the first representative of Costigulella reported from Cameroon. It is probably the smallest species of the family Streptaxidae known world-wide. Arguments are provided to consider Costigulella an independent radiation and genus, rather than a subgenus of Gulella. The mode of development of apertural barriers in juvenile shells in Costigulella and in other Streptaxidae is discussed.
Tipo: Article / Letter to the editor Palavras-chave: Mollusca; Gastropoda; Gulella; Costigulella; New status; New species; Distribution; Africa; Cameroon; Shell development; Apertural barriers; 42.73.
Ano: 2008 URL: http://www.repository.naturalis.nl/record/261785
Imagem não selecionada

Imprime registro no formato completo
Cymatium corrugatum (Lamarck 1816) Gastropoda, Prosobranchia. A new species for the adriatic ArchiMer
Simunovic, A.
Very valuable papers concerning malacology of the Adriatic Sea deal, for the most part, with the systematics, whereas there is a substantial number of papers with very scarce information on the ecology of individual species. Since I intended to provide some more comprehensive data on individual species, rather complex bionomic and biocoenological research was undertaken aiming to study the taxonomy and the ecology of the Prosobranchiata group. Present research covered different biotopes of the northern, middle and southern Adriatic, both in the shallow coastal and deeper open littoral, and hard and mobile bottoms. Material was collected in two ways: 1) Scuba diving or direct collection and observations; and 2) an indirect method of collection of samples by...
Tipo: Text Palavras-chave: Cymatium corrugatum; Gastropode; Espèce nouvelle; Mer Adriatique; Cymatium corrugatum; Gastropoda; New species; Adriatic Sea.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/00325/43634/43231.pdf
Imagem não selecionada

Imprime registro no formato completo
De novo assembly and annotation of the European abalone Haliotis tuberculata transcriptome ArchiMer
Harney, Ewan; Dubief, Bruno; Boudry, Pierre; Basuyaux, Olivier; Schilhabel, Markus B.; Huchette, Sylvain; Paillard, Christine; Nunes, Flavia.
The European abalone Haliotis tuberculata is a delicacy and consequently a commercially valuable gastropod species. Aquaculture production and wild populations are subjected to multiple climate-associated stressors and anthropogenic pressures, including rising sea-surface temperatures, ocean acidification and an emerging pathogenic Vibrio infection. Transcript expression data provides a valuable resource for understanding abalone responses to variation in the biotic and abiotic environment. To generate an extensive transcriptome, we performed next-generation sequencing of RNA on larvae exposed to temperature and pH variation and on haemolymph of adults from two wild populations after experimental infection with Vibrio harveyi. We obtained more than 1.5...
Tipo: Text Palavras-chave: RNA-Seq; Mollusca; Gastropoda; Development; Vibrio harveyi; Climate change.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00318/42940/45103.pdf
Imagem não selecionada

Imprime registro no formato completo
Der Wert von Befestigungsanlagen für den Erhalt der Biodiversität am Beispiel der Schnecken (Mollusca: Gastropoda) Naturalis
Kobialka, H.; Kappes, H..
Significance of fortifications for biodiversity conservation: The example of terrestrial gastropods (Mollusca: Gastropoda) Significance of fortifications for biodiversity conservation: The example of terrestrial gastropods (Mollusca: Gastropoda) The different microhabitats of the walls of historical fortifications harbor a gastropod fauna that is significantly distinct from that of the surroundings (such as meadows and forests). The communities on the vertical planes of the walls display the highest heterogeneity, and thus a high susceptibility to anthropogenic disturbances. Parts of the heterogeneity can be seen to result from different renovation intensities and stages of (re-) colonization. Many red-listed species were found in the microhabitats of...
Tipo: Article / Letter to the editor Palavras-chave: Fortifications; Biodiversity conservation; Terrestrial gastropods; Mollusca; Gastropoda; Balea perversa; Microhabitats; 42.73.
Ano: 2010 URL: http://www.repository.naturalis.nl/record/421037
Registros recuperados: 93
Primeira ... 12345 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional