Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 346
Primeira ... 123456789 ... Última
Imagem não selecionada

Imprime registro no formato completo
Die Evolution der Archaeopulmonata Naturalis
Harbeck, K..
The Archaeopulmonata are revised, using characters of the shell and the radula, while data concerning the ontogeny and ecological data are also taken into account. Archaeopulmonates are a group of the pulmonates with some conspicuous plesiomorphous character states They differ from the basommatophores and the stylommatophores by the presence of veliger larvae. This is seen in the early ontogenetic development of all members of the families of Archaeopulmonata, which are: Carychiidae, Chilinidae (incl. Latiinae), Siphonariidae, Onchidiidae, Amphibolidae, Otinidae and Ellobiidae (with most numerous genera and species). Altogether 33 genera and 59 recent species are discussed. Fossil material shows that the roots of this stem-group are old. Jurassic and...
Tipo: Article / Letter to the editor Palavras-chave: Archaeopulmonata; Carychiidae; Chilinidae; Siphonariidae; Onchidiidae; Amphibolidae; Otinidae; Ellobiidae; Evolution; Taxonomy.; 42.73.
Ano: 1996 URL: http://www.repository.naturalis.nl/record/317550
Imagem não selecionada

Imprime registro no formato completo
The stratigraphy and regional structure of Miocene deposits in western Amazonia (Peru, Colombia and Brazil), with implications for late Neogene landscape evolution Naturalis
Wesselingh, F.P.; Hoorn, M.C.; Guerrero, J.; Räsänen, M.E.; Romero Pittmann, L.; Salo, J.A..
A biozonation based on molluscs is proposed for Miocene deposits of western Amazonia (Peru, Colombia and Brazil), commonly referred to as the Pebas Formation. The new zonation refines existing pollen zonations and provides a key for the quick assessment of the stratigraphic position of Neogene deposits in the field. The regional distribution of twelve mollusc zones reveals a structuring of geological units around the broad Iquitos-Araracuara anteclise. The structure of the subsurface appears to have been a major factor in the determination of present-day second and lower order river courses in the study area. Based on this work a biostratigraphic framework for Miocene deposits of western Amazonia, including fossiliferous deposits from adjacent basins...
Tipo: Article / Letter to the editor Palavras-chave: Stratigraphy; Mollusca; Miocene; Western Amazonia; Pebas Formation; 42.73; 38.22.
Ano: 2006 URL: http://www.repository.naturalis.nl/record/209729
Imagem não selecionada

Imprime registro no formato completo
Bibliographical notes on de Folin & Bérillon's Malacological papers concerning "La Region Extrême S.-O. de la France" and related publications by de Folin and Barrois Naturalis
Gittenberger, E.; Kosten, A.P.W.M..
Between 1874 and 1877 the marquis L. de Folin and F. Bérillon published several papers on the non-marine mollusks of the southwesternmost part of France. In this series of papers, for obscure reasons published under three different headings, various new nominal molluscan taxa are introduced. Their correct citing and dating is important therefore. Because these data cannot be found in the literature, we considered it useful to summarize the results of our bibliographical investigations. As a by-product of our studies some notes are given concerning certain papers by De Folin alone and a contribution which is attributable to Barrois. De Folin & Bérillon (1874-1877) published their "Catalogue", "Etudes" and "Contributions" in two journals, which are not...
Tipo: Article / Letter to the editor Palavras-chave: 42.01; 42.73.
Ano: 1983 URL: http://www.repository.naturalis.nl/record/319256
Imagem não selecionada

Imprime registro no formato completo
A Miocene perspective on the evolution of the Amazonian biota Naturalis
Wesselingh, F.P.; Salo, J.A..
Between c. 23 and 8 Ma, western Amazonia was occupied by the vast Pebas long-lived lake/wetland system. The Pebas system had a variety of influences over the evolution of Miocene and modern Amazonian biota; it formed a barrier for the exchange of terrestrial biota, a pathway for the transition of marine biota into freshwater Amazonian environments, and formed the stage of remarkable radiations of endemic molluscs and ostracods. The lithological variation of the Pebas Formation has furthermore enhanced edaphic heterogeneity in western Amazonia, sustaining present-day high terrestrial diversity in the region.
Tipo: Article / Letter to the editor Palavras-chave: Miocene; Amazonia; Biogeography; Biodiversity; Mollusca; 42.73; 38.22.
Ano: 2006 URL: http://www.repository.naturalis.nl/record/209738
Imagem não selecionada

Imprime registro no formato completo
Heteromorphic ammonites from the Barremian and Aptian strata of Colombia Naturalis
Kakabadze, M.V.; Hoedemaeker, P.J..
Thirty seven species and subspecies of ammonites of the families Ancyloceratidae Gill, 1871, and Heteroceratidae Spath, 1922, are described. The following new taxa are described; Crioceratites (Paracrioceras) leyvaensis, C. (P.) royogomezi, C. (P.) cabreraensis, Pedioceras multicostatum, Pseudocrioceras guanense, Kutatissites creutzbergi, K. densecostatus compactus, K. etayosernai, K. grandis, K.? galanensis, Ammonitoceras galanense, A. giganteum, Hamiticeras ventrotuberculatum, H. longum, Hemihoplites (Matheronites) ridzewskyi sachicaensis, Colchidites riosuarezi, C. pseudovulanensis, C. guanensis and C. striatosulcatus. Moreover, one new genus, Laqueoceras gen. nov., with the type species L. laqueus sp. nov., is proposed.
Tipo: Article / Letter to the editor Palavras-chave: Heteromorphic ammonites; Barremian; Aptian; Colombia; 38.22; 42.73.
Ano: 2004 URL: http://www.repository.naturalis.nl/record/214458
Imagem não selecionada

Imprime registro no formato completo
Leptochiton denhartogi, a new species of Polyplacophora (Mollusca) from Angola Naturalis
Strack, H.L..
Leptochiton denhartogi is described and compared with several closely related species.
Tipo: Article / Letter to the editor Palavras-chave: Polyplacophora; Leptochitonidae; New species; Angola; West Africa; 42.73.
Ano: 2003 URL: http://www.repository.naturalis.nl/record/220572
Imagem não selecionada

Imprime registro no formato completo
Sexual selection on land snail shell ornamentation: a hypothesis that may explain shell diversity Naturalis
Schilthuizen, M..
Background: Many groups of land snails show great interspecific diversity in shell ornamentation, which may include spines on the shell and flanges on the aperture. Such structures have been explained as camouflage or defence, but the possibility that they might be under sexual selection has not previously been explored. Presentation of the hypothesis: The hypothesis that is presented consists of two parts. First, that shell ornamentation is the result of sexual selection. Second, that such sexual selection has caused the divergence in shell shape in different species. Testing the hypothesis: The first part of the hypothesis may be tested by searching for sexual dimorphism in shell ornamentation in gonochoristic snails, by searching for increased...
Tipo: Article / Letter to the editor Palavras-chave: Mollusca; Land snails; Sexual selection; Shells; Diversity; 42.73.
Ano: 2003 URL: http://www.repository.naturalis.nl/record/224794
Imagem não selecionada

Imprime registro no formato completo
Notes on and descriptions of Bulimulidae (Mollusca, Gastropoda), II Naturalis
Breure, A.S.H.; Eskens, A.A.C..
The following new taxa are described: Drymaeus ( Drymaeus) cleefi, Drymaeus (Drymaeus) palassus and Drymaeus (Drymaeus) yapacanensis. The variation in the size of the sculpture of the protoconch is analyzed and two groups, which roughly correspond to the subgenera Drymaeus and Mesembrinus, are distinguished. Furthermore the variation in the mandibula and radula of 46 species is analyzed. Anatomical data are presented for 52 species and four species are redescribed.
Tipo: Article / Letter to the editor Palavras-chave: 42.73.
Ano: 1981 URL: http://www.repository.naturalis.nl/record/317825
Imagem não selecionada

Imprime registro no formato completo
Trachygystis (Dendrotrichia) sylvicola, a new subgenus and species from Rhodesia (Mollusca, Gastropoda Pulmonata: Endodontidae) Naturalis
Bruggen, A.C. van; Verdcourt, B..
In 1959 the first author (A.C.v.B.) discovered a peculiar snail of the pulmonate family Endodontidae in Rhodesia; on a subsequent expedition more specimens were obtained, so that a series is now available for description. The species undoubtedly belongs to the genus Trachycystis Pilsbry, 1893, but a new subgenus has to be created in order to accomodate this particular species. Anatomical data and figures have been supplied by the second author (B.V.), while the first author is responsible for the remaining part of text and figures. Dendrotrichia subgen. nov. A subgenus of Trachycystis characterised by ramose bristles on the surface of the shell; genital anatomy like that of subgenus Chalcocystis. Type species: Trachycystis (Dendrotrichia) sylvicola spec....
Tipo: Article / Letter to the editor Palavras-chave: 42.73.
Ano: 1965 URL: http://www.repository.naturalis.nl/record/319055
Imagem não selecionada

Imprime registro no formato completo
De weekdieren van de Nederlandse brakwatergebieden (Mollusca) Naturalis
Kuijper, W.J..
The molluscs of the brackish waters in the Netherlands (Mollusca) The Netherlands is a river delta rich in brackish waters. The organisms in these waters need to be adapted to extreme conditions, especially large fluctuations in chlorinity. However, several species occur optimally in this habitat. In this paper a review is presented of the molluscs living in brackish waters in the Netherlands. All available data from literature, collections, literature and databanks were compiled for this cause. In The Netherlands a large variety of brackish waters can be found, like lakes, canals, old creeks, shallow pools, lagoons, estuaries and dykes. This paper focusses on the waters on the landside of the dikes. All species found in these waters are treated here....
Tipo: Article / Letter to the editor Palavras-chave: Mollusca; Nederland; Verspreiding; Biotopen; Biologie; 42.73.
Ano: 2000 URL: http://www.repository.naturalis.nl/record/217235
Imagem não selecionada

Imprime registro no formato completo
New Odostomia species (Gastropoda, Heterobranchia, Pyramidellidae) from the Miocene Pebas Formation of Western Amazonia (Peru, Colombia) Naturalis
Aartsen, J.J. van; Wesselingh, F.P..
Odostomia nuttalli spec. nov. and O. coluhensis spec. nov. are described from the Miocene Pebas Formation of Peruvian and Columbian Amazonia. A third pyramidellid snail is also diagnosed. These species are indicators for marine influence in the late Middle to early Late Miocence of Western Amazonia. Some ecological implications are discussed.
Tipo: Article / Letter to the editor Palavras-chave: Mollusca; Gastropoda; Odostomia; Systematics; Miocene; Amazonia; Pebas Formation; 38.22; 42.73.
Ano: 2000 URL: http://www.repository.naturalis.nl/record/235155
Imagem não selecionada

Imprime registro no formato completo
On altitude dependent characters in Albinaria idaea (L. Pfeiffer, 1849), with a revision of the species (Gastropoda Pulmonata: Clausiliidae) Naturalis
Engelhard, G.H.; Slik, J.W.F..
Several forms of Albinaria idaea (L. Pfeiffer, 1849) have been described as (sub)species from various sites on Mt. Ida (Central Crete). In recent years, however, much additional material has been collected, which made clear that no sharp boundaries exist between these forms. Moreover, several characters proved to be altitude dependent to a certain extent. It may be concluded that on Mt. Ida only a single evolutionary entity can be distinguished, viz. A. i. idaea. On the isolated Mt. Kedros, south-west of Mt. Ida, an undescribed allopatric form was found, which because of its smaller size and differences in altitude dependent characters was given subspecific rank as A. i. amabilis ssp. nov. On the Paximadia Isles, south of Central Crete, a percostate and a...
Tipo: Article / Letter to the editor Palavras-chave: Gastropoda; Pulmonata; Clausiliidae; Albinaria; Taxonomy; Altitudinal variation; Greece; 42.73.
Ano: 1994 URL: http://www.repository.naturalis.nl/record/318732
Imagem não selecionada

Imprime registro no formato completo
Die von der Niederländischen Biologischen expedition in die Türkei in 1959 Gesammelten Nacktschnecken (Milacidae und Limacidae, Pulmonata) mit Beschreibung Einer neuen Deroceras-art aus dem Balkan-Gebiet und der Türkei Naturalis
Wiktor, A..
Das in diesem Beitrag behandelte aus der Türkei stammende Material gehört dem Rijksmuseum van Natuurlijke Historie in Leiden (Holland) und wurde von W. J. M. Vader während der im Titel erwähnten Expedition gesammelt. Zur Beschreibung der neuen Art diente auch Material aus anderen Sammlungen, wobei der Verbleib entsprechend im Text angegeben wurde. Es wurde bei den von Vader gesammelten Exemplaren nicht jedesmal der Name des Sammlers wiederholt, sondern nur die Notiz „V" mit der Nummer des Standortes angegeben. Genauere Angaben über die numerierten Standorte sind den allgemeinen Expeditionsnotizen von Anonymus (1963) zu entnehmen. Das von der holländischen Expedition gesammelte Material wird durch verschiedene Spezialisten bearbeitet und in Teilen...
Tipo: Article / Letter to the editor Palavras-chave: 42.73.
Ano: 1971 URL: http://www.repository.naturalis.nl/record/318236
Imagem não selecionada

Imprime registro no formato completo
Pectinoidea (Mollusca, Bivalvia, Propeamussiidae, Cyclochlamydidae n. fam., Entoliidae and Pectinidae) from the Vanuatu Archipelago Naturalis
Dijkstra, H.H.; Maestrati, P..
This paper documents the species of Pectinoidea Rafinesque, 1815 collected in Vanuatu during the SANTO 2006 expedition. A total of 49 species (13 Propeamussiidae Abbott, 1954, 4 Cyclochlamydidae n. fam., 1 Entoliidae Teppner, 1922, and 31 Pectinidae Rafinesque, 1815) are represented, of which 70% are new records for Vanuatu. A new family, Cyclochlamydidae n. fam., is established for the genera Cyclochlamys Finlay, 1926, Chlamydella Iredale, 1929 and Micropecten n. gen., formerly placed in Propeamussiidae, but differing by their sculptured prodissoconch (smooth in Propeamussiidae), an occasionally antimarginally sculptured right valve (smooth or weak commarginally sculptured in Propeamussiidae), a (common) simple outer prismatic layer of longitudinally...
Tipo: Article / Letter to the editor Palavras-chave: Bivalvia; Vanuatu Archipelago; Littoral; Bathyal; New family; New genus; New species; New records; 42.73.
Ano: 2012 URL: http://www.repository.naturalis.nl/record/427942
Imagem não selecionada

Imprime registro no formato completo
Inventarisatie van de landslakken van de Zeeuwse kust, met nadruk op de nauwe korfslak Naturalis
Boesveld, A..
Tipo: Book (monograph) Palavras-chave: Nederland; Verspreiding; Biotopen; Mollusca; Mollusken; Vertige angustior; 42.73.
Ano: 2005 URL: http://www.repository.naturalis.nl/record/219867
Imagem não selecionada

Imprime registro no formato completo
Notes on some Surinam land snails Naturalis
Regteren Altena, C.O. van.
During my stay in Surinam (Dutch Guiana) in the first three months of 1963 most of my time was devoted to the study of the marine Mollusca, on which I shall report later. Now and then, however, I had an opportunity of collecting non marines. The following notes are the result of the study of some of the land snails in the material I collected. SUBULINIDAE Leptinaria (Luntia) insignis (E. A. Smith) Luntia insignis Smith, 1898, Journ. Conchol. 9: 28, fig. 8 (Trinidad); Pilsbry, 1906, Man. Conch. (2) 18: 218, pl. 40 fig. 7; Hummelinck, 1940, Studies Fauna Curaçao &c. 2: 98 (Aruba); 3: 115, 116 (Aruba); Morrison, 1943, Nautilus 57: 48 (British Guiana). Varicella clappi [non Pilsbry], Meeuse & Hubert, 1949, Basteria, 13: 18, pl. 3 fig. 15 (greenhouse...
Tipo: Article / Letter to the editor Palavras-chave: 42.73.
Ano: 1964 URL: http://www.repository.naturalis.nl/record/318933
Imagem não selecionada

Imprime registro no formato completo
Some new species of the subfamily ‘Leptoceratoidinae’ (Ancyloceratina, Ammonoidea) in uppermost Hauterivian and lower Barremian deposits from Rumania Naturalis
Avram, E..
The Berriasian — lower Valanginian genus Leptoceras reappears in the lower Barremian sequences of Rumania, where it is represented by at least two species: L. brunneriforme sp. nov. and L. svinitense sp. nov. This record has led to a revision of the so far accepted taxonomic interpretation of the criomorph Barremian Leptoceratoidinae and of their relationship with the Berriasian-Valanginian Protancyloceratinae. In addition, a new species of the genus Hamulinites (H. nicklesi, from the uppermost Hauterivian) provides evidence that the genus Eoleptoceras Manolov should be considered valid.
Tipo: Article / Letter to the editor Palavras-chave: Ammonoidea; Leptoceratoidinae; New species; Taxonomy; Hauterivian; Barremian; 38.22; 42.73.
Ano: 1999 URL: http://www.repository.naturalis.nl/record/216195
Imagem não selecionada

Imprime registro no formato completo
Vetigastropoda - oerslakken Naturalis
Goud, J.; Winter, A.J. de.
Tipo: Article in monograph or in proceedings Palavras-chave: Biodiversiteit; Nederland; Oerslakken; 42.73.
Ano: 2010 URL: http://www.repository.naturalis.nl/record/391936
Imagem não selecionada

Imprime registro no formato completo
A contribution to the knowledge of non-marine Mollusca of South West Africa Naturalis
Bruggen, A.C. van.
The moment to collate scattered notes on South West African non-marine molluscs arrived last year when Mr. B. H. Lamoral of the Natal Museum, Pietermaritzburg (South Africa), entrusted the present author with the study of material obtained during a Council of Scientific and Industrial Research (C.S.I.R., Pretoria)-sponsored collecting trip. During Mr. Lamoral's explorations in 1969 in South West Africa non-marine molluscs were obtained as a sideline. Nevertheless the material is certainly considered sufficiently interesting to warrant publication. South West African material from various sources was studied and the following abbreviations have been used: BM for British Museum (Natural History), London; NM for Natal Museum, Pietermaritzburg; RMNH for...
Tipo: Article / Letter to the editor Palavras-chave: 42.73.
Ano: 1970 URL: http://www.repository.naturalis.nl/record/318771
Imagem não selecionada

Imprime registro no formato completo
Notes on East African land and freshwater snails, 12-15 Naturalis
Verdcourt, B..
The following notes mostly concern the description of new species from East Africa in connection with renewed work on a check-list of the non-marine Mollusca of that area which has been in preparation during the past 25 years. A fairly complete manuscript has been available for many years but additional material and further research continually render it in need of revision. Previous notes in this series were published in Basteria, the last being Verdcourt (1978). A number of the professional photos have been kindly made by Mr. A. 't Hooft of the Department of Systematics and Evolutionary Biology of the University, Leiden; Dr. A. C. van Bruggen of the same university department has made the paper ready for the press. The following abbreviations are used in...
Tipo: Article / Letter to the editor Palavras-chave: 42.73.
Ano: 1982 URL: http://www.repository.naturalis.nl/record/317924
Registros recuperados: 346
Primeira ... 123456789 ... 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