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Registros recuperados: 119 | |
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Hellebrekers, W.Ph.J.. |
In 1910 the Rijksmuseum van Natuurlijke Historie at Leiden obtained the important egg collection from Surinam, brought together by Messrs. F. P. and A. P. Penard. Owing to different circumstances this collection as a whole was not studied again, and, with the exception of some notes in papers by Schönwetter (1932, 1933) nothing has been published upon the material since it came into the Museum. In 1941 and 1942 I had the opportunity to rearrange the oölogical collections of the Leiden Museum, and during this work the Penard material was incorporated into the general collection. During my study of the material I became convinced that it is worth while to publish more detailed data than those contained in the works of the Penard's. This especially holds as... |
Tipo: Article / Letter to the editor |
Palavras-chave: 42.83. |
Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/318020 |
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Deelder, C.L.. |
In 1941 and 1942 I studied the rather extensive collection of Erotylidae in the Rijksmuseum van Natuurlijke Historie, the results of this study are given in the following pages. The collection is chiefly composed of material which during a long series of years gradually was acquired by the Museum, though a great deal formerly was a part of private collections which later as a whole became the property of the Museum and then the specimens were incorporated into the general collection. The most important of these private collections is that of Dr. H. J. Veth, other important collections are those of Dr. D. MacGillavry, and of Mr. J. J. de Vos tot Nederveen Cappel, the latter collection recently presented to the Museum. Moreover the Museum possesses certain... |
Tipo: Article / Letter to the editor |
Palavras-chave: 42.75. |
Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/318060 |
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Jonker, F.P.. |
Of the family Oenotheraceae the genus Jussieua is the only one occurring in Suriname. The peculiar Oocarpon torulosum (Arn.) Urb., which has been recorded from Amazonian Peru, Brazil, British and French Guiana, Cuba and Santo Domingo, has up till now not been collected in the colony, but on account of its presence in the neighbouring countries it is there also to be expected. As for the name of the only Suriname genus, it was spelled by LINNAEUS in Genera Plantarum, ed. I (1737), p. 126, Jussieua but afterwards in his Flora Zeylanica (1747), p. 75, changed in Jussiaea. |
Tipo: Article / Letter to the editor |
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Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/535162 |
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Lam, H.J.. |
Lorsque, il y a une année à peu près, ma collaboratrice Mlle Joséphine Koster vint me trouver en suggérant l’idée d’éditer un volume dédié au jubilé de votre quatre-vingt-dixième anniversaire, j’acceptai sans hésitation. Cette idée m’était en effet d’autant plus sympathique que j’avais cherché depuis longtemps une occasion pour vous exprimer en public notre admiration tant pour votre personne que pour votre oeuvre. Si nous ne nous étions pas trouvés dans un temps où les contacts internationaux sont interrompus, si précieux et si indispensables pour nous autres, travailleurs scientifiques, il aurait été certainement possible d’organiser une collaboration de plusieurs pays d’outre mer. Car nous savons que vos nombreux amis auraient été heureux de pouvoir... |
Tipo: Article / Letter to the editor |
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Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/526376 |
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Hooijer, D.A.. |
While studying the literature on recent and fossil Hippopotami it became evident to me that a number of authors ascribe a third milk incisor to Hippopotamus amphibius L. Consequently this species, as regards the milk dentition, should be "hexaprotodont" like the Pliocene and Pleistocene species of Hippopotamus from the Siwaliks of India, Burma and Java; and like H. pantanellii Joleaud (1920, p. 18) from Casino near Siena in Italy (vide Pantanelli, 1879, p. 318, pl. IV fig. 5). According to Major (1896, p. 978) young specimens of H. lemerlei Grandidier from Madagascar occasionally are hexaprotodont too. When dealing with Hippopotamus amphibius L. Blainville (1847, p. 32) made the following remarks: "Dans le très-jeune âge, il est certain qu'il y a trois... |
Tipo: Article / Letter to the editor |
Palavras-chave: 42.84. |
Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/317978 |
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Henrard, J.Th.. |
During the preparation of an account of the grasses for the flora of Dutch Guiana many difficulties were found in the identification of species of the genus Axonopus. Our knowledge as to the most recent treatment is entirely based upon Doell’s work for the Flora Brasiliensis. It is, however, evident that Doell did not see many types and his concept of many species proves to be incorrect. The modern genus Axonopus is not accepted by Doell but treated by him as a section Emprosthion of the large genus Paspalum. The difficulties arose already when he treated Fluegge’s Paspalum furcatum which is a continental North American species. Raddi’s Paspalum obtusifolium from Brazil, although given as a synonym, is a quite distinct species. As another synonym is... |
Tipo: Article / Letter to the editor |
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Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/525576 |
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Bremekamp, C.E.B.. |
Among the most aberrant types of pollen grains found in plants which have been referred to the family Acanthaceae, are those of the genera Meyenia N. ab E. and Thomandersia Baill. Although the pollen grains were described by LINDAU under different names, those of the first genus as cogwheel-shaped and those of the latter as lenticular, they are really very similar: in both genera they are depressed globose, provided with five or more meridional grooves extending from the equator to about halfway the poles, and without clearly circumscribed germ pores. The difference between the two kinds of grains lies in the presence or absence of ribs: in Meyenia the grooves are borne on the top of ribs separated from each other by shallow depressions, whereas in... |
Tipo: Article / Letter to the editor |
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Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/534928 |
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Ruge-Baenziger, E.. |
L'éditeur de ce journal vient de recevoir de Mme Ruge, née Baenziger, une des plus anciennes amies de Mme Weber, la lettre suivante, qu’il est heureux de pouvoir faire imprimer ci-dessous: Ma chère Anna, Quatre-vingt-dix ans! Voilà pour la première fois dans notre amitié de longues années que je constate une indiscrétion de votre part; vous à qui l’on pouvait à bon droit reprocher un excès de discrétion tant sur le domaine de la pensée que sur celui de l’action. Et cependant, ces quatrevingt-dix ans vous ont été imposés par les puissances au dessus de nous. Certes, les années écoulées depuis la mort de votre mari vous ont placé devant line bien lourde tâche, mais d’autant plus lumineuse me semble votre vie avant ce douloureux événement. Que de multiples... |
Tipo: Article / Letter to the editor |
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Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/526348 |
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Boeke, J.E.. |
An attempt has been made to subdivide a very polymorphous plant species by means of a quantitative statistical method. This method has been based upon the following working hypothesis: 1° as some morphological characters of the material, concerning e. g. the shape of the leaves, the length of the pedicels etc., show an extremely great variation, each of these characters in every specimen at hand may be stated to be in one of three (one intermediate and two extreme) conditions; 2° if a character happens to be in an intermediate condition in a relatively great number of specimens the difference between the extreme conditions of that character may be considered insignificant from a taxonomical point of view; 3° the fewer characters of two or more specimens... |
Tipo: Article / Letter to the editor |
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Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/526246 |
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Florschütz, F.; Jonker, F.P.. |
Die Pflanzendecke unseres Landes hat während des Quartärs grosse Änderungen erlitten. Dies wird besonders deutlich beim Vergleich der limburgischen fossilen Flora, wie sie in einer vortrefflichen Arbeit des Ehepaares REID (Lit. 1) beschrieben ist, mit der gegenwärtig einheimischen Vegetation. Im allgemeinen wird die erwähnte Flora für jungtertiär gehalten, jedoch ist ihre Stelle im Pliozän umstritten. Von den ungefähr 240 Phanerogamen, von welchen sich Reste im Ton von Reuver, Swalmen und Brunssum vorfanden, sind laut der Berechnung von E. M. REID nur 12% heute indigen und 88% exotisch; mehr als die Hälfte der letzteren sind identisch mit rezenten sino-amerikanischen Arten (Lit. 2). |
Tipo: Article / Letter to the editor |
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Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/535109 |
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Kuenen, Ph.H.. |
As early as 1863 Sorby proved that pitted pebbles are the result of solution at the points of mutual contact in a conglomerate. As cause he suggested solution under pressure in saturated, stagnant groundwater by what has afterwards been designated Riecke’s principle. By the examination of polished cuts through a pitted conglomerate I found confirmation of this hypothesis. The alternate explanation by Daubrée, Kumm and others of solution in water held by capillarity at the points of contact could not cause the observed shapes of the pits. The experiments they used to disprove Sorby’s view are fundamentally incorrect. They attempted to form pits by a solvent liquid, instead of using pressure and saturated water. Groningen, November 1942. |
Tipo: Article / Letter to the editor |
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Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/505905 |
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Zaneveld, J.S.. |
As far as I know, only three papers are dealing with Charophyta of the Netherlands West Indies. In 1858, in “Monatsbericht der königlichen Akademie der Wissenschaften, Berlin”, BRAUN records two species from Paramaribo, viz. Nitella microcarpa A. BR. and Chara hydropitys REICHENB. ap. MOESSL. These species are also enumerated in the “Fragmente einer Monographie der Characeen” (BRAUN & NORDSTEDT, 1882), in which another species is recorded from Curaçao, viz. Chara gymnopus A. Br. f. curassavica A. BR., now to be named Chara zeylanica Willd. f. curassavica (A. BR.) H. et J. GROVES. The third paper is that of H. and J. GROVES in URBAN’s Symbolae Antillanae (1911), in which the last-named species is once more recorded. In 1930 Mr P. WAGENAAR HUMMELINCK... |
Tipo: Article / Letter to the editor |
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Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/535212 |
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Swart, J.J.. |
My revision of the Burseraceae in Pulle’s Flora of Suriname is extended here to a monographic treatment of those Burseraceous genera of which representatives occur in Suriname. Engler’s monograph of this family dates from nearly sixty years ago, and since that time many new species have been published. These additions and the large number of minor and major problems which presented themselves, doubtless justify the publication of this study. I am bound to admit however that not all problems could be solved. The present paper is divided into a General Part and a Taxonomic Part. The critical remarks concerning the whole family and its tribes are dealt with in the General Part, and those referring to the separate genera and species are to be found in the... |
Tipo: Article / Letter to the editor |
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Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/535202 |
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Schuurmans-Stekhoven Jr., J.H.. |
In June 1932 my friend Prof. Dr. G. C. Hirsch made some biological studies at the marine biological laboratory of Palma di Mallorca. He was accompanied by Dr. E. Ries, at that time Rockefeller Fellow. Both did collect for me some samples of marine sediments from which I have picked out the freeliving marine nematodes for further study. In the same year Dr. A. Oosterbaan made an excursion to Ibiza together with some other geological students and brought home from there for me some samples of mud with marine nematodes. The result of the 3 mentioned small collections, of which that of Hirsch is the most important, will be given in this paper. Next to a comparatively great number of typical mediterranean marine nematodes, a restricted number has a more... |
Tipo: Article / Letter to the editor |
Palavras-chave: 42.79. |
Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/318272 |
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Heimans, J.. |
In the winter and early spring of 1916 Mrs. Anna Weber-van Bosse at her hospitable residence near Eerbeek initiated me in the study of Freshwater Algae. For several years after that date in numerous trips all over this country I collected and studied some thousands of samples from all kinds of freshwater ponds and lakes, canals and streams. The Desmids soon drew my special attention, when an unexpectedly rich and varied Desmid flora was found in certain fens and ponds in the diluvial and moor districts of our country. |
Tipo: Article / Letter to the editor |
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Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/526352 |
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Beets, C.. |
Bei unserer Untersuchung der Geologie des Turiner Beckens veranlasste uns die dort aufgefundene Tertiärsedimentation uns mit dieser faszinierenden Erscheinung näher zu beschäftigen. Schon früher haben sich eine Reihe von Forschern mit diesem Problem auseinandergesetzt, und man muss annehmen, dass die Einteilung der verschiedenen Schichtungsarten — sedimentäre Phänomene von höchster Bedeutung — am besten genetisch zu erfolgen hat, wie u. a. Kumm (20) und Brinkmann (7) es getan haben. Dazu zwingen uns auch die geologischen Verhältnisse, auf die wir an erster Stelle mit einigen Bemerkungen über das Tertiär der Turiner Berge eingehen wollen. Wir können hier nur kurz die wichtigsten Daten und Ansichten über die Entstehungsweise bestimmter Schichtenfolgen zur... |
Tipo: Article / Letter to the editor |
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Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/505750 |
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Cosijn, A.J.. |
In the following pages data will be given about the size of the megalospheric embryonic apparatus, and of the size of the shell, of some Foraminifera. By comparing these data for a certain species from different samples, the relative ages of which are known, it will be possible, to get an insight into the alterations of the measured characters in geological times. For that purpose samples from geological sections, or otherwise well defined geological formations, were used. A description of each of these sections will be given, in order to discuss the reliability of the determinations of the relative ages of the samples. I may point out here, that as the layers containing the foraminiferal shells have a certain thickness, and as the sampling has been done... |
Tipo: Article / Letter to the editor |
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Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/505835 |
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Beaufort, L.F. de. |
It needs an explanation why among the botanical papers published in this volume to honour Mrs. Weber—van Bosse on her 90th birthday a zoological contribution has been inserted. Those who have read the curriculum vitae of this wellknown botanist in the foregoing pages of this volume will not wonder, for they know that she has been keenly interested for more than half a century in the zoological work of her late husband. And so among the chorus of botanists the voice of a zoologist could hardly be missed. For many years I have enjoyed the friendship of both, and I am grateful for this opportunity to show Mrs. Weber my affection and my admiration. When contemplating an adequate theme for this paper it occurred to me that in some way or other it had to dwell... |
Tipo: Article / Letter to the editor |
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Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/526387 |
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Jong, C. de. |
Under the above title I intend to publish a number of short notes on Cerambycidae, including synonymies, descriptions of new species, etc. For the greater part the material on which these notes are based is from the Rijksmuseum van Natuurlijke Historie at Leiden. In other cases the collections are always indicated. Each set of notes published together will be arranged according to Aurivillius in Coleopterorum Catalogus (JunkSchenkling), parts 52, 39, 73 and 74. I. ADDITIONAL NOTE ON RHAPHIPODUS DRESCHERI DE JONG (PRIONINAE, PRIONINI) Rhaphipodus drescheri De Jong (fig. 1a and b) Rhaphipodus drescheri De Jong, 1936, Zool. Med., vol. 19, p. 77. When studying some Cerambycidae in the collections of the Amsterdam Zoological Museum I found three specimens, 2 ♀♀... |
Tipo: Article / Letter to the editor |
Palavras-chave: 42.75. |
Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/319336 |
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Engel, H.. |
When Clark (1921) cleared the genus Linckia from superfluous synonyms, he could give no opinion on Linckia rosenbergi Von Martens 1866, p. 63 from Amboina. The unique holotype was in the Berlin Museum and hence not easily accessible to him, the species had not been described again. In his key Clark lays the stress on Von Martens' remark: "Die Porenfelder liegen zwischen den zwei Reihen grösserer Plättchen an der Armseite dicht aneinander, ohne alle Unterbrechung (wie bei Ophidiaster suturalis Müll. & Troschel), aber die Poren behalten dieselbe Anordnung in runde Gruppen (Felder) von circa 10 Poren bei". Clark interpreted this as follows: "Poriferous areas between superomarginals and inferomarginals in an unbroken, continuous series, more or less... |
Tipo: Article / Letter to the editor |
Palavras-chave: 42.72. |
Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/318238 |
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Registros recuperados: 119 | |
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