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| Registros recuperados: 220 | |
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| NN. |
| West-Indië heeft zijn naam te danken aan een vergissing. Een grootse vergissing overigens, want toen Columbus in 1492 Amerika ontdekte, meende hijzelf dat hij de Oostelijke eilanden van de Indische Archipel had gevonden. Het verhaal gaat, dat bij de eerste eilanden die Columbus bezocht, ook St. Maarten was (11 November 1492, d.i. op St. Maarten’s dag). Al gauw moet men hebben bemerkt dat dit nog niet de gezochte (Oost)-Indische eilanden waren. Latere expedities hebben het pogen langs deze weg Oost-Indië te bereiken voortgezet, wat tot gevolg had dat reeds in 1498 het vasteland van Zuid-Amerika (o.a. de monding van de Orinicorivier en Suriname) door Spaanse ontdekkingsreizigers werd betreden. Curaçao werd in 1499 ontdekt door Alonso de Ojeda. Zowel de... |
| Tipo: Article / Letter to the editor |
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| Ano: 1954 |
URL: http://www.repository.naturalis.nl/record/504811 |
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| Hoedeman, J.J.. |
| My previous account on the Nannostomidi (1951, The Amsterdam Naturalist, 1 (1): 11—27) dealt with the synonymy of the recognized species. Diagnoses were given of the three genera, Nannostomus, Poecilobrycon and Nannobrycon (new genus). The account was based on but little material, largely on descriptions in literature, yet it could readily be proved that the species described before belong to 5 species only and to 3 well defined genera. I have since had the opportunity to study rather large series from Surinam and some other localities. An entirely new species was found among this material, which is so interesting in many respects that it induced me to reconsider the matter of the phylogeny of the tribe. |
| Tipo: Article / Letter to the editor |
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| Ano: 1954 |
URL: http://www.repository.naturalis.nl/record/504931 |
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| Koster, Josephine Th.. |
| En Zélande, province des Pays-Bas, l’on trouve différentes stations où croissent des algues marines. Ce sont: 1. Les digues, 2. Les canaux d’eau de mer, 3. Les parcs à huîtres, 4. Les slikkes et les schorres. La Zélande comprend une bande continentale et deux séries d’îles. Comparé aux autres provinces des Pays-Bas, le climat est assez tempéré. La température moyenne à Flessingue (Vlissingen) est de 3°C en janvier, le mois le plus froid, et de 18°C durant les mois les plus chauds, juillet et août. La température moyenne de l’eau de mer en surface est de 1— 3°C en janvier et de 19°C en juillet et août. |
| Tipo: Article / Letter to the editor |
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| Ano: 1954 |
URL: http://www.repository.naturalis.nl/record/524963 |
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| Boeseman, M.. |
| A collection of Surinam fishes, all probably collected in the neighbourhood of Paramaribo during the late autumn of 1952, was kindly presented to the Rijksmuseum van Natuurlijke Historie at Leiden by the direction of the Rotterdam Zoological Garden „Blijdorp". The collection contains some 800 specimens, the examination of which yielded sufficiently interesting results to justify the present publication. Order OSTARIOPHYSOIDEA Family CHARACINIDAE Curimatopsis macrolepis Steindachner 1 ex., neighbourhood of Paramaribo, standard length 26 mm (caudal fin damaged). This species was already known from the lower regions of the Surinam River and the Marowini River. Curimatus copei Fowler Curimatus copei Fowler, 1906, p. 301, fig. 7. 1 ex., neighbourhood of... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.81. |
| Ano: 1954 |
URL: http://www.repository.naturalis.nl/record/318003 |
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| Usinger, R.L.. |
| Apterous Aradidae were first brought to the attention of Hemipterists by N. C. E. Miller (Ann. Mag. Nat. Hist. [11] 1: 498-510, 1938). In fact it can be said that this paper with its excellent illustrations was the stimulus for the striking discoveries that have been made in this group in the past decade. The genus Chelonocoris Miller was proposed for a group of seven (actually 8 as is shown below) very large species from Malaya, Borneo, and (as it now appears) India. The present paper was prompted by the discovery in various European museums of several additional species which extend the known range of the genus to Java and Sumatra. In order to place these new species a key was prepared. The first key was based on Miller's types and was written while... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.75. |
| Ano: 1954 |
URL: http://www.repository.naturalis.nl/record/318282 |
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| Boeseman, M.. |
| Two large specimens of a hitherto unknown species of neotropical catfish have recently been found dead and washed ashore beneath the dike along the Westerscheldt near Biezelinge, Zeeland, at a mutual distance of approximately 300 meters. Both were in excellent condition and have been presented to the Rijksmuseum van Natuurlijke Historie at Leiden by Mr. B. J. J. R. Walrecht. A superficial examination already disclosed the fact that the two specimens belong to the (sub)genus Selenaspis, a well known group of catfishes inhabiting the salt and brackish shores and estuaries of the northern part of the South American continent. Some of the species are known to spawn in fresh water. The present specimens must have been transported by ship. Whether they have been... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.81. |
| Ano: 1954 |
URL: http://www.repository.naturalis.nl/record/318569 |
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| Zwaan, P.C.. |
| The X-ray powder method for determining minerals has been applied to the important rock-forming mineral group of the pyroxenes in this thesis. The purpose of the investigation was to seek the relationship between the variations of the intensities and positions of the reflections in the powder diagram and the variations in optical properties and chemical composition. For that purpose a number of pyroxenes from different localities were investigated optically, chemically and röntgenographically. The orthopyroxenes. — The optical examination of the orthopyroxenes indicates, that the variation of the optical properties is related to the chemical composition (see Table 1). A difference between plutonic and volcanic orthopyroxenes lies in the size of the optic... |
| Tipo: Article / Letter to the editor |
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| Ano: 1954 |
URL: http://www.repository.naturalis.nl/record/505841 |
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| Hooijer, D.A.. |
| The material to be described below forms part of a collection of fossil vertebrates made by Dr. J. Cosijn North of Djetis and Perning in Eastern Java (Cosijn, 1931, 1932). The Cosijn collection has not yet been fully described, some preliminary identifications were made by the late Prof. Dr. J. H. F. Umbgrove (in Cosijn, 1931, pp. 118-119). The collection is preserved in the Geological Museum at Leiden ; I have previously described the remains of rhinoceros (Hooijer, 1946, pp. 3, 55, 73, and 76) and those of hippopotamus (Hooijer, 1950, pp. 66, 69-72, and 87-108). It is a pleasure again to acknowledge my indebtedness to Prof. Dr. B. G. Escher and to Prof. Dr. I. M. van der Vlerk for permission to study this valuable material. Umbgrove's first conclusion... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 38.22; 42.84. |
| Ano: 1954 |
URL: http://www.repository.naturalis.nl/record/318409 |
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| Jacobs, M.. |
| Gynostemma hederifolia (Decne) Cogn. in D.C., Monogr. Phan. 3: 916, 1881. (“hederaefolia”). — Sicyos hederifolius Decaisne in Nouv. Ann. Mus. Hist. Nat. Paris 3: 450, 1834. KANGEAN Island (N. of Bali): Gua Peteng, 1 M alt.; Backer 26948 (BO), 15-III1919, ♂, filaments connate up to the top, leaves far more densely puberulous than in the next specimen. |
| Tipo: Article / Letter to the editor |
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| Ano: 1954 |
URL: http://www.repository.naturalis.nl/record/526077 |
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| Cooreman, J.. |
| Au cours d'un séjour à Leiden, au mois de juin 1953, j'ai eu l'occasion d'examiner les Canestriniidae de la collection du Dr. A. C. Oudemans, propriété du Rijksmuseum van Natuurlijke Historie2). Quoique peu nombreux, les Acariens de cette famille étudiés par le grand Acarologue néerlandais, présentent un grand intérêt. D'autre part, le temps a fait défaut à Oudemans pour lui permettre de donner des descriptions complètes et illustrées des espèces nouvelles qu'il avait découvertes; seules des diagnoses préliminaires furent publiées dans les „Acarologische Aanteekeningen". Il est évident que la publication des dessins originaux de Oudemans, ainsi que des notes inédites qui les accompagnent, doit rendre les plus grands services à ceux qui s'intéresseront à la... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.74. |
| Ano: 1954 |
URL: http://www.repository.naturalis.nl/record/318105 |
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| Boeseman, M.. |
| The collections of Dermaptera in the Rijksmuseum van Natuurlijke Historie at Leiden and the Zoölogisch Museum at Amsterdam, referred to in the present paper as "Museum Leiden" and "Museum Amsterdam", consist of numerous specimens including many types described by previous authors and a fairly large number of hitherto unidentified examples. A reinvestigation and an identification of the unidentified material therefore promised interesting results, a promise which has been fulfilled. The investigations took place during the war years 1942 and 1943 under unfavorable circumstances. The original MS was finished shortly after the war but, due to printing difficulties, publication had to be postponed. During the recent preparation of the present paper, some... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.74. |
| Ano: 1954 |
URL: http://www.repository.naturalis.nl/record/317621 |
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| Laidlaw, F.F.. |
| Dr. E. Jacobson spent some months on the island of Simalur, and on some of the smaller islands in its immediate neighbourhood in the course of the year 1913. He made extensive zoological collections on these islands, whose fauna was very little known up till that time. Amongst his material was a series of shells belonging to the Pleurodontid genus Amphidromus. This series has been entrusted to me by Dr. Van Regieren Altena, and I am grateful to him for the chance of seeing these very interesting shells, and for the help he has given me in dealing with them. I have too to thank Mr. G. L. Wilkins for the figures. Simalur is the most northerly of the long chain of large islands which lie along the West coast of Sumatra. The whole chain is roughly 1000 km in... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.73. |
| Ano: 1954 |
URL: http://www.repository.naturalis.nl/record/319020 |
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| Vloten, Roger van. |
| The border region between Coahuila and Zacatecas is part of the mountainous country south of Parras in northeastern Mexico. It includes a thickness of about 2,600 meters of Jurassic and Cretaceous rocks that were deposited along the northern border of the Mexican geosyncline along the southern margin of the Coahuila Peninsula massif. During early Tertiary time these sediments were compressed into folds parallel to the borders of the massif. The majority of the anticlines in the area mapped is overturned to the north. After the compressive stage a tensional stage developed and a system of tensional faults was formed. Block faulting found place on a large scale. A suggestion by de Sitter that some longitudinal faults may be comparable to schistosity planes... |
| Tipo: Article / Letter to the editor |
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| Ano: 1954 |
URL: http://www.repository.naturalis.nl/record/505685 |
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| Exell, A.W.. |
| Combretum kostermansii Exell, sp. nov. Frutex scandens, ramulis primo fulvo-pilosis et tomentellis demum sparse pilosis, atro-rubris. Folia opposita breviter petiolata, petiolo 1—3 mm longo, piloso, lamina chartacea, ovata vel oblongo-ovata, basi cordata, apice acuminata, 2—7 X 1.8—3.6 cm, supra nitidula, costa media excepta pilosula fere glabra, subtus ad nervo adpresse pilosula, haud lepidota, costis lateralibus utrinsecus 3—6. Flores ♂+ protogyni, 4-meri, sessiles, albi, in paniculas terminales et axillares, rhachide fulvopiloso, bracteis filiformibus 3—4 mm longis fulvo pilosis dispositi. Receptaculum inferius 1—1.5 mm longum, dense pilosum, superius cupuliforme, 1.5 X 2.5 mm, pilosulum. Calycis lobi ovato-acuminati, 1 X 0.9 mm. Petala 4, late ovata,... |
| Tipo: Article / Letter to the editor |
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| Ano: 1954 |
URL: http://www.repository.naturalis.nl/record/526042 |
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| Registros recuperados: 220 | |
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